About the opportunity:

• Outlier is looking for talented coders to help train generative artificial intelligence models
• This freelance opportunity is remote and hours are flexible, so you can work whenever is best for you

You may contribute your expertise by…

• Crafting and answering questions related to computer science in order to help train AI models
• Evaluating and ranking code generated by AI models

Examples of desirable expertise:

• Currently enrolled in or completed a bachelor's degree or higher in computer science at a selective institution
• Proficiency working with one or more of the the following languages: Java, Python, JavaScript / TypeScript, C++, Swift, and Verilog
• Ability to articulate complex concepts fluently in Danish 
• Excellent attention to detail, including grammar, punctuation, and style guidelines

Payment:

• Currently, pay rates for core project work by coding experts range from USD $25 to $50 per hour.
• Rates vary based on expertise, skills assessment, location, project need, and other factors. For example, higher rates may be offered to PhDs. For non-core work, such as during initial project onboarding or project overtime phases, lower rates may apply. Certain projects offer incentive payments. Please review the payment terms for each project.

About the opportunity:

• Outlier is looking for talented coders to help train generative artificial intelligence models
• This freelance opportunity is remote and hours are flexible, so you can work whenever is best for you

You may contribute your expertise by…

• Crafting and answering questions related to computer science in order to help train AI models
• Evaluating and ranking code generated by AI models

Examples of desirable expertise:

• Currently enrolled in or completed a bachelor's degree or higher in computer science at a selective institution
• Proficiency working with one or more of the the following languages: Java, Python, JavaScript / TypeScript, C++, Swift, and Verilog
• Ability to articulate complex concepts fluently in Dutch
• Excellent attention to detail, including grammar, punctuation, and style guidelines

Payment:

• Currently, pay rates for core project work by coding experts range from USD $25 to $50 per hour.
• Rates vary based on expertise, skills assessment, location, project need, and other factors. For example, higher rates may be offered to PhDs. For non-core work, such as during initial project onboarding or project overtime phases, lower rates may apply. Certain projects offer incentive payments. Please review the payment terms for each project.

Software Design Engineer

_Starting Pay: USD $50-100K/yr

!! EXPERT DEVELOPERS ONLY !! TYPESCRIPT AND REACT EXPERIENCE REQUIRED !!

**Introduction

These solutions are composed of internal systems (such as CRM, ERP or other systems heavily customized and extended by us), integrated with the external systems (such as client portals) and various custom backend connections that allow interaction with external parties as needed. Our tech stack is largely based on React and Typescript (the knowledge of which is required for this role as well).

Our solutions are completely custom to each client and have a lot of custom functionality in them. To deliver such solutions with high quality and high efficiency, our organization has developed very specific processes for how we run our development operation and very specific back-end and front-end toolkits to reuse functionalities and utilities and to minimize unnecessary development work for each client.

The Role of Software Design Engineer is a technical solution design role within ESA. This role is reserved only for very technically skilled iniduals with software development background and the actual ability to build quality working software, and an established familiarity in ESA's core tech stack based around React and Typescript. Having developed software design skills and experience will be a major plus for any candidate coming in for this role, but is secondary to technical software development abilities. Our methodology relies on skilled developers with real software building experience to design our complex and functional software solutions.

Software Design Engineers on ESA team work together with the business process experts who make decisions on how the business processes of our clients need to be re-organized, re-engineered, digitized, and automated. The business process experts are responsible for the business operations and business decisions side of the matter, while the Software Design Engineers are responsible for the software functionality, design, and assuring technical implementation of a software solution that will effectively address business process requirements of the business process experts. The Software Design Engineers concept, architect, detail out, wireframe, and oversee the full functional and technical design of the software solutions. Much of the technical implementation is handled by our software development team composed of front-end and back-end software engineers, as well as QA engineers, but Software Design Engineers assure successful implementations and iterate them as needed to serve the needs of successful operation of these software solutions in our clients' businesses.

Click "Apply" To Go To Our Site

**Tech Used

• React with Material UI and our custom components (Typescript is used heavily)

• Graphql based backend services

• REST based backend services

• Our reusable toolkits (see below)

• - Reusable toolkits for our operation (common reusable functionalities, common generic business functionalities, common integrations, self-developed toolkits to speed up development and QA process, etc)

  • Custom back end and front-end toolkits developed in reusable format that we deploy across projects for reusable functionalities

*   Customized database toolkit forked on top of open source NocoDB with enhanced automatically generated endpoints and enhanced toolkits for developing and QAing any interactions with the database.  
*   Customized back-end flow toolkit for internal use forked on top of fair code N8N with enhanced endpoints toolkit accessible to front-end - very useful for developing and QA'ing background workflows efficiently.  
*   Customized scheduling toolkit forked from Cal.com  
*   Other internally developed toolkits  

• - Third Party Systems we tightly integrate with:

  • Zoho Platform (CRM, Desk, Books), heavily customized for each project

*   these solutions are often part of our central systems solutions, and their platforms allow to use some of their out of the box functionalities, while being able to extensively customize the UI and embed custom components and interfaces into them, they are extremely customizable while providing some useful business features, which is why we use them;  
*   Customer.io  
*   Quickbooks  
*   Twilio  
*   Sendgrid  
*   Stripe, Authorize.net  
*   Anvil document automation toolkit  
*   Oystehr healthcare backend services  
*   Others, as needed to meet the needs of particular client industries, and any other needs we may have.

Click "Apply" To Go To Our Site

Who is suitable for this Software Design Engineer role?

• A builder, with intricate commercial experience of software development, understanding how it works, common software development concepts such as REST APIs, typecasting, synchronous and asynchronous execution, cache invalidation, etc., and can actually build a working software solution from the ground up.

• A critical thinker, who uses logic and rational thought in the analysis of business requirements, understanding the big picture as well as the finer details, and who relies on data to make decisions, asking questions when needed, instead of resorting to guesswork.

• A problem solver, who can split big problems into smaller, manageable chunks, and who doesn't get stuck on seemingly unsolvable problems, always finding practical, simple, feasible, effective and efficient solutions.

• Someone with a knack for software design, who can conceptualize functionality to meet business goals and communicate how this can be accomplished by designing user flows, low-fidelity wireframes, flow charts, etc., as well as specifying all the technical requirements for the implementation of the solution.

The Software Design Engineer is:

• NOT a business analyst: won’t write business requirements.

• NOT a "solutions architect": won’t design vague “solution architectures”, instead will design highly detailed and intricate solutions, detailing all intricate front-end and back-end functionality.

• NOT a salesman: won't sell software nor have direct contact with customers.

• NOT a UX Researcher: won’t interview stakeholders nor run user research.

• NOT a UX/UI designer: knowledge of basic UX and UI principles is required, but the job is much more than just making wireframes or prototypes.

As a Software Design Engineer, what will you be doing exactly?  

• Perform critical analysis of business requirements and business processes provided by our team of business process experts.

• Develop a thorough understanding of the problem and scope of the solution.

• Strategize the time and effort required for the implementation of the software solution and use that to construct designs that optimize for faster build-out while also meeting its requirements most effectively.

• Conceptualize a feasible, effective and efficient solution, balancing business goals, user goals, cost, time, and any other constraints.

• Perform a rigorous technical analysis of how a technically efficient and feasible solution should be built, which includes things like Database analysis, APIs analysis, external systems testing, proof of concepts construction and testing, validation of feasibility, and other intricately technical

• Design and document all aspects of the solution:

• Design and document the general architecture of the solution as a whole, conceptualizing its technical components and various integrations.

• Design and document User Flows for all user-facing functionality.

• Design all back-end flows and document them in flowcharts and other representations.

• Define all the technical specifications required to implement all functionalities and automations.

• Design low-fi wireframes for all user interfaces (your low-fi wireframes should be good enough to be used by developers in implementing the solution, in very rare cases high fidelity wireframes may need to be made but we almost always rely on low-fi wireframes in all of our operations).

• Create state diagrams, entity-relationship diagrams, flow charts, and any other technical specifications that might be required to communicate the technical requirements of your solution properly.

• Collate all the designs, specifications, requirements, and other documentation and hand them over to the Development Team for implementation.

• Assist the Development Team and the QA Team in developing, testing, and deployment.

• Actively participate in the implementation and assure the end goal of deploying a production-grade, fully functional, and efficient solution that meets all of the specified business requirements.

Click "Apply" To Go To Our Site

Requirements for Candidates for this Role

• Practical and commercially successful Software Development experience in building working and successfully implemented software that is in active use in real world business operations;

• Professional knowledge and successful experience with front-end development, back-end and full-stack development, databases, APIs, and all other key software development concepts;

• Specific and strong experience with and knowledge of React and Typescript - this is required due to Elite Software Automation's tech stack, in this job you will sometimes find yourself working as a developer in our development team, and you must be fully capable of what our developers are capable of with our stack;

• Understanding of what this job is and having genuine desire and interest in utilizing your skills and experience in a Software Design Engineer capacity is required;

• Experience with either designing software from the ground up or with developing complex software effectively while not being given a detailed design that somebody else made (in effect coming up with design of your software while building it and working from only vague business-side-only requirements) in your past career is also required.

• Ability and willingness to work extremely hard. This is a very difficult job. It is also likely that it will require a lot of fast on-the-job learning for you to become good at it. If you get this job, it might be one of the hardest jobs in your life, you must be prepared for that.

Click "Apply" To Go To Our Site

Paymentology is the first truly global issuer-processor, giving banks and fintechs the technology, team and experience to rapidly issue and process Mastercard, Visa and UnionPay cards across more than 60 countries, at scale. 

Our advanced, multi-cloud platform, offering both shared and dedicated processing instances, vast global presence and richer, real-time data, set us apart as the leader in payments.

The Software Engineer is responsible for creating, enhancing, and maintaining software applications and systems. This role collaborates with cross-functional teams to comprehend requirements, design solutions, and implement code that conforms to best practices and industry standards. The role may necessitate the capability to work on multiple concurrent projects, proactively review progress, and offer recommendations for process enhancement. Moreover, the Software Engineer must possess robust problem-solving skills, technical expertise, and a dedication to delivering dependable software solutions.

Requirements Analysis:

• Collaborate with product management and tech leads to gather and analyse software requirements, ensuring a clear understanding of project objectives and specifications.

Software Development:

• Design software solutions and architectures that address functional and non-functional requirements, considering scalability, performance, and security.
• Write clean, efficient, and maintainable code using appropriate programming languages and frameworks, following established coding standards and best practices.
• Develop and execute comprehensive test plans to validate software functionality, reliability, and performance, including unit tests, integration tests, and end-to-end tests.
• Identify and resolve technical issues and bugs throughout the software development lifecycle, employing debugging tools and techniques to ensure the stability of software applications.
• Manage source code repositories using version control systems (e.g. Git), ensuring proper branching, merging, and documentation of changes.
• Implement unambiguous tasks with limited direction, breaking down portions of projects and contributing to task estimation. Follow standard issue-tracking workflows and processes, facilitated by JIRA.
• Seek oversight when necessary to validate approaches and escalate roadblocks as needed.

Progress Review:

• Proactively review progress and evaluate results on assigned technical projects, comparing them against plans and specifications.
• Make adjustments and recommendations based on results to ensure project success.

Process Improvement:

• Provide recommendations to working groups regarding the improvement of specific work practices within Paymentology, such as requirements specification, peer review, and coding standards.
• Contribute to the enhancement of team processes and documentation.
• Resolve straightforward problems by implementing discrete solutions, troubleshooting issues, and addressing immediate causes.

Documentation:

• Create and maintain technical documentation, including design documents, user guides, test cases and API documentation, to facilitate knowledge sharing and support future development efforts.
• Write technical specification documentation and participate in the planning,  and review of design and development activities for concurrent projects.
• Ensure alignment with project objectives and specifications.
• Adhere to organisational policies, procedures, and regulatory requirements related to software development, security, and data privacy, ensuring compliance with industry standards and regulations.
• Contribute to task breakdown, estimation, and improvement of team documentation.

Collaboration and Communication:

• Collaborate with engineering teams to develop moderate to complex software applications, leveraging expertise in required languages and technologies.
• Work closely with cross-functional teams, including product managers, designers, and quality assurance engineers, to deliver high-quality software solutions on time and within budget.
• Work within defined team processes, collaborating effectively with team members and raising concerns when processes break down or fail.

Learning and Development:

• Stay updated on emerging technologies, industry trends, and best practices in software engineering.
• Take initiative to expand knowledge and skills through training, self-study, and participation in professional development activities.

What it takes to succeed:

• 3-5 years of experience in software development or related fields.
• Knowledge of one or more programming languages commonly used in software development, such as Java, with experience in the Spring Boot framework for building robust and scalable applications. Understanding of software engineering principles, data structures, algorithms, object-oriented design concepts, clean code, and SOLID principles
• Familiarity with software development tools and technologies, including integrated development environments (IDEs), version control systems (e.g. Git), and issue tracking systems (e.g. JIRA).
• Understanding of software practices such as Agile development methodologies, code reviews, and continuous integration/continuous deployment (CI/CD) pipelines.
• Skills in unit test and/or Test-Driven Development.
• Experience with multicloud kubernetes environments.
• Experience in leveraging Apache Kafka for building scalable, distributed systems and handling large volumes of data in real-time
• Familiarity with Microsoft Office Suite, including Word, Excel, PowerPoint, and Outlook.
• Ability to document requirements and specifications. 
• Problem-solving skills.
• Continuous Learning and development mindset.
• Teamwork and Collaboration, specifically in remote working companies.
• Excellent verbal and written communication skills in English.

Overview

MDCalc is the most trusted and broadly used medical reference for clinical decision making tools, used by millions of clinical users worldwide. We're the #1 medical reference for clinical decision tools and content and we're used by more than 65% of US doctors quarterly.

To continue to further accelerate and steward this growth, we are seeking a Senior Full Stack Developer on our expanding tech team. This role will be critical to MDCalc’s expanded success in continuing to support our millions of clinical users worldwide in taking care of hundreds of millions of patients.

Responsibilities

• Serve as a senior team member contributing to and helping guide the delivery of high quality software products.
• Assume ownership and responsibility of all work, and drive it to completion.
• Collaborate with technical and non-technical team members to ensure rapid delivery of software products.
• Provide contributions to architecture and design decisions that have a major impact on the overall system scalability and performance.
• Champion software engineering best practices, including code reviews, testing, documentation, and code quality standards.
• Lead by example, demonstrating a commitment to excellence, professionalism, and collaboration in all aspects of software development and team interactions.

Qualifications

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field (or equivalent experience)
• Strong proficiency in React, React Native, NextJS, Express, and Postgres with experience in building scalable, distributed systems and web applications
• Experience with the following:
  • Consumer/Public Websites, Mobile Applications, Amazon AWS
  • Terraform, Go, Docker, and BitBucket
• Excellent communication and interpersonal skills with the ability to effectively collaborate with cross-functional teams while rolling up sleeves to get in the details
• Deep understanding of software engineering principles, system architecture concepts to provide technical guidance and refinement of product specs and tickets
• Knowledge of the healthcare industry and previous experience working in health tech is a plus

What we can offer you

• Ability to make a true difference in medicine: MDCalc is the most broadly used medical reference by physicians, used by 65% of US attending doctors to treat millions of patients every month
• Dynamic, virtual, work from anywhere (within the USA) environment while providing unique experiences every day
• Base compensation ranges from $150,000 to $200,000, depending on location, experience and accomplishments; we offer stock options, a 401k, and great health benefits too

GitLab is hiring a remote Associate Support Engineer (AMER). This is a full-time position that can be done remotely anywhere in Americas.

GitLab - A single application for the entire DevOps lifecycle.

Mozilla is hiring a remote Lead Engineer, Common Voice. This is a full-time position that can be done remotely anywhere in Canada, the United States, UK or Germany.

Mozilla - Non-profit champions of the Internet.

Burhani Media Solutions LLC is seeking a highly skilled Full Stack Blockchain Developer to join our team. The ideal candidate will have expertise in developing and deploying smart contracts, decentralized applications (dApps), and full-stack blockchain solutions. If you have a strong background in blockchain development, smart contract programming, and full-stack web development, we want to hear from you!

Responsibilities:

• Design, develop, and deploy secure smart contracts using Solidity or Rust.
• Build and integrate decentralized applications (dApps) on blockchain platforms like Ethereum, Binance Smart Chain, or others.
• Develop and maintain backend services using Node.js, Python, or PHP.
• Create responsive and dynamic frontend interfaces using React, Next.js, Vue.js, or Angular.
• Work with Web3.js, Ethers.js, or other blockchain libraries for blockchain interactions.
• Implement blockchain security best practices to ensure smart contract integrity and protect against vulnerabilities.
• Optimize gas fees, transaction costs, and blockchain performance.
• Collaborate with the design and product teams to deliver seamless user experiences.
• Conduct code reviews, testing, and debugging to ensure high-quality production-ready code.

Requirements:

• Proven experience as a Full Stack Blockchain Developer.
• Strong proficiency in Solidity, Rust, or other smart contract languages.
• Hands-on experience with Ethereum, Polygon, Binance Smart Chain (BSC), or other blockchain networks.
• Proficiency in backend development (Node.js, Python, or PHP with Laravel).
• Strong knowledge of frontend frameworks like React.js, Next.js, Vue.js, or Angular.
• Experience with Web3.js, Ethers.js, or similar libraries.
• Familiarity with IPFS, The Graph, or Layer 2 solutions is a plus.
• Understanding of blockchain security best practices (reentrancy, front-running, etc.).
• Experience with smart contract audits is a plus.
• Strong problem-solving and communication skills.

Preferred Qualifications:

• Prior experience working with DeFi, NFTs, or GameFi projects.
• Familiarity with Docker, Kubernetes, or cloud infrastructure.
• Experience with Hyperledger, Cosmos, or Polkadot ecosystems.

Compensation:

• Hourly rate: $25 - $40, based on experience and expertise.
• Flexible work hours.
• Opportunity to work on cutting-edge blockchain projects.

If you’re passionate about blockchain development and want to be part of a dynamic team, apply now! 🚀

⬇

Apply Now

Blockchain Developer (Solana)

Hong Kong

CMC /

Full-time /

Remote

Apply for this job

Responsibilities:

1. Develop, test, and deploy smart contracts on the Solana blockchain platform.

2. Design and implement the backend logic of decentralized applications (dApps), ensuring the efficiency, security, and scalability of the code.

3. Collaborate with the front-end development team to integrate the front-end and back-end of dApps.

4. Keep up with the latest developments in Solana blockchain technology and optimize existing system architecture.

5. Participate in the planning, design, and implementation of blockchain projects, providing technical solutions.

6. Solve technical challenges encountered during the development process to ensure timely project delivery.

Requirements:

1. Bachelor's degree or above in Computer Science, Software Engineering, or a related field.

2. Proficient in Rust programming language with a solid foundation in programming and good coding practices.

3. Familiar with the architecture of the Solana blockchain platform, the smart contract development process, and tools.

4. Understand the basic principles of blockchain, including consensus mechanisms and distributed ledgers.

5. Possess strong problem-solving skills and a team-oriented mindset.6. Prior experience in Solana project development is preferred.

7. Familiarity with Web3.js or other blockchain development frameworks is a plus.

8. Good command of English reading and writing skills to read and understand technical documents in English.

Apply for this job

⬇

Apply Now

"

Ideal Candidate:

- Worked at an early-stage startup (pre-seed, seed, series A)

- 5yrs of full-stack experience. (python, react preferred, open to other)

- Some experience with LLM / Agentic Applications.

- Great opportunity for remote candidates

- $120,000 / yr.

- US-CAN-LATAM Timezones Preferred (open to others).

Tech Stack:

* Python, React, Fast API, Supabase

Who we are:

- Mission to improve the world's capacity for care

- Respectful, intelligent, positive team

- A-players that are excited to build the best

- Well funded, YC- Company with incredible customer demand

",

Ready to be pushed beyond what you think you’re capable of?

At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.

To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems.

Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be.

Coinbase is seeking experienced backend engineers to join our team to build out the next generation of crypto-forward products and features. You will solve unique, large scale, highly complex technical problems, bridging the constraints posed by web-scale applications and blockchain technology. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe, operating real-time applications with high frequency, low latency updates, and managing the most secure infrastructure running in the cloud.

The Growth organization drives Coinbase’s mission of bringing the world onchain. By building and leveraging growth tools across multiple avenues, including referral and incentives programs, creating a world-class notifications system, building a dynamic, engaging, and accessible logged-out web experience, and optimizing our new user onboarding flow, we ensure that Coinbase is the easiest, safest, and fastest way to buy, hold, and trade Crypto assets, and ensure our new users are set up for success from their first interaction.

What you'll be doing:

• Build and run experiments to power the growth of Coinbase’s retail products.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have experience launching new products from 0 to 1
• Experience with growth experiments or A/B testing frameworks.
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
• You’ve built fintech, highly reliable and/or secure systems.
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE04US

*Answers to crypto-related questions may be used to evaluate your onchain experience.

#LI-Remote

Pay Transparency Notice: Depending on your work location, the target annual salary for this position can range as detailed below. Full time offers from Coinbase also include target bonus + target equity + benefits (including medical, dental, vision and 401(k)).

Pay Range:

$147,000—$174,000 USD

Please be advised that each candidate may submit a maximum of four applications within any 30-day period. We encourage you to carefully evaluate how your skills and interests align with Coinbase's roles before applying.

Commitment to Equal Opportunity

Coinbase is committed to ersity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Know Your Rights notice here. Additionally, Coinbase participates in the E-Verify programin certain locations, as required by law.

Coinbase is also committed to providing reasonable accommodations to iniduals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).

Global Data Privacy Notice for Job Candidates and Applicants

Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.

⬇

Apply Now

Ready to be pushed beyond what you think you’re capable of?

At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.

To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems.

Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be.

Coinbase is seeking experienced frontend engineers to join our team to build out the next generation of crypto-forward products and features. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe.

The Growth organization drives Coinbase’s mission of bringing the world onchain. By building and leveraging growth tools across multiple avenues, including referral and incentives programs, creating a world-class notifications system, building a dynamic, engaging, and accessible logged-out web experience, and optimizing our new user onboarding flow, we ensure that Coinbase is the easiest, safest, and fastest way to buy, hold, and trade Crypto assets, and ensure our new users are set up for success from their first interaction.

What you'll be doing:

• Build and run experiments to power the growth of Coinbase’s retail products.
• Build engaging, dynamic, and accessible user experiences that delight users while providing world-class ease of use and security.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

• You have at least 2+ years of experience in developing web apps and shipping user-facing features with JavaScript and modern, component-based JS frameworks like React.
• You've developed and shipped user-facing features using component-based UI frameworks.
• You’re familiar with current trends and best practices in front-end architecture, including performance, security and usability.
• You’re familiar with product and design lifecycles, and collaborating closely with designers, engineers, and product managers.
• You write high quality, well tested code to meet the needs of your customers.

Nice to haves:

• You have experience launching new products from 0 to 1
• Experience with growth experiments or A/B testing frameworks.
• You've worked on front-end teams in the finance or security space
• You have at least 1 year of experience in developing React Native mobile apps or helped move existing native apps to React Native
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCFE04US

#LI-Remote

Pay Transparency Notice: Depending on your work location, the target annual salary for this position can range as detailed below. Full time offers from Coinbase also include target bonus + target equity + benefits (including medical, dental, vision and 401(k)).

Pay Range:

$152,405—$179,300 USD

Please be advised that each candidate may submit a maximum of four applications within any 30-day period. We encourage you to carefully evaluate how your skills and interests align with Coinbase's roles before applying.

Commitment to Equal Opportunity

Coinbase is committed to ersity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Know Your Rights notice here. Additionally, Coinbase participates in the E-Verify programin certain locations, as required by law.

Coinbase is also committed to providing reasonable accommodations to iniduals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).

Global Data Privacy Notice for Job Candidates and Applicants

Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.

⬇

Apply Now

Ever wish your CEO encouraged you to write more automated tests? Or even just understood their importance? Want to work where clean code isn’t a luxury but a priority?  

Our founder and CEO is a developer himself, and our elegant code is the vein that keeps our company healthy and growing. You’ll never have to advocate for the importance of investing in code quality. You can save time (and frustrations) and spend it on doing what matters in a healthy, collaborative environment where your ideas, energy and time are valued.  

You’ll be involved in all cycles of software development, including decision-making, so there are incredible opportunities for you to take initiative, make meaningful contributions, and grow. Forget political struggles or long, pointless debates. You’ll be in a team with minimal distance between word and action, where decisions are made ultra-fast.  

This is a rare opportunity to work exclusively with senior-level developers in a erse, highly organized, result-driven environment where you can thrive personally and professionally.  

You’ll become an essential part of our team, someone who is making a direct impact on not only the core product and reputation of our organization but also the whole world of education and beyond! 

The IxDF is the global leader in online UX/UI design education. We hold the trust of industry giants like Adobe and IBM, who rely on our courses to train their teams. Prestigious universities, including MIT and the University of Cambridge, use our material into their curricula. Help us take online education to new heights and make a meaningful impact on humankind. We’re entering our third decade with over 170,000 graduates. 

We’re proud to have assembled a remarkable team of unicorns who uplift, motivate, and push each other to excel daily. There's a seat open for someone who shares our passion for excellence. Could that be you?

Project Overview

Our flagship product is a vast platform with over 30 sub-domains for online courses, masterclasses, online forums, and community meet-ups in 508 cities in 107 countries. We understand what PHP developers need to thrive, and we've created an environment that delivers.  

• Close to Legacy-Free Codebase. We know how technical debt and legacy code can turn into quicksand, so we continually eradicate it. Some examples include the complete rewrite of our notification and payment system and numerous enhancements made to our course platform. 

• Consistent Coding Standards. We are proud of our strict coding standards, which is the cornerstone of our clean and maintainable codebase. You can find numerous examples in the IxDF Handbook, which includes our conventions for PHP, Laravel, SQL, JavaScript, and CSS, along with other useful resources. You can also find other examples in the IxDF UI Kit, which we’re currently rebuilding into an industry-leading  Design System and our handy IxDF component library. 

• Crystal-Clear Documentation. Clarity is key. Any line of code should be a succinct, well-crafted, and self-explanatory piece of communication to your future self or your colleague. To string things together, we mix in just the right amount of documentation, with best practices such as focusing on the “why?” and keeping it simple.  

• Focus on what matters: Our CI/CD pipeline uses quality tools such as Psalm, PHPStan, Rector, PHPCS, PHP CS Fixer, Deptrac, and ESLint to ensure consistency and code quality. This means we’re almost bug-free despite having numerous, zero-downtime, fully automated deployments to production every day. We don’t like bugs and would rather focus on what matters most. 

• Test Coverage: “The only way to go fast, is to go well - Robert C. Martin”. We love automated testing, especially Unit Tests, and use TDD as much as we can. We've been increasing our test coverage over the years, reaching an overall 38% test coverage throughout the system, with critical systems having over 80% test coverage.

The Stack You Will Work On

#UseThePlatform. We focus on enduring technologies over the latest fleeting frameworks so that our developers' knowledge continually grows instead of becoming outdated after each trend has passed. This philosophy allows us to build robust, maintainable and beautiful code that stands the test of time rather than chasing the latest hype. Some of our key technologies include: 

• Always latest PHP and Laravel versions 

• Modular monolith comprising 30+ bounded contexts 

• Laravel ecosystem: Horizon, Nova, Scout, Pennant, Passport, Inertia, and more 

• Web Components, htmx, Tailwind, Vue.js, Inertia.js, Vite 

• Server: Docker, Sail, Octane, Forge, nginx 

• DBs: MySQL 8, Redis (Pub/Sub, Cache, Queue Driver) 

• Testing: PHPUnit, Laravel Dusk, Cypress 

• Advanced CI/CD: GitHub actions, Deployer, Bash 

• Code Quality: Psalm, PHPStan, Rector, PHPCS, PHP CS Fixer, Deptrac

• Integrations: Stripe, PayPal, Amazon Pay, Twilio, Mailgun, MailerLite, GitHub, Forge, Coconut, ImageKit, and more 

• Cloud: AWS, GCP, Digital Ocean 

• APM & Monitoring: NewRelic, CloudWatch, BugSnag, GTMetrix 

What You Will Be Doing

We are committed to excellence, and we seek a like-minded enthusiast to join us. This role is not for the average; it's a calling for a true clean coder. Ahead of you is a highly rewarding and enriching journey on which you’ll: 

• Join our experienced development team in implementing a strategic transition from custom CSS to TailwindCSS 4.0, working alongside senior developers to create scalable solutions while ensuring seamless integration with our Laravel backend.

• Work with our expert development team to migrate blade templates to TailwindCSS 4.0, learning and applying industry best practices while contributing to our comprehensive component library.

• Collaborate on designing and implementing adaptive, responsive components that enhance user experience across our platform, with a focus on accessibility and performance.

• Join forces with our senior developers to optimize existing workflows and develop new features using Laravel 11.x, contributing to our high-quality codebase while adhering to strict coding standards.

• Learn and apply advanced design patterns as you help build reusable components, gaining valuable experience in creating scalable and maintainable solutions.

• Participate in technical discussions and architectural planning, growing your expertise in both Laravel and TailwindCSS while working alongside our accomplished development team.

If you want even more opportunities to show the world what you can do, you’re in luck! When you're willing to do the hard work of learning and growing, then you’ll find virtually limitless opportunities with us.

About You

• You possess expert knowledge in PHP and its frameworks, preferably Laravel. You're an expert in software design best practices and principles, OOP, Design Patterns, and SOLID principles. 

• You're proficient with TailwindCSS and comfortable implementing it in Laravel Blade environments.

• You have a great understanding of software engineering fundamentals, performance, data structure, and algorithms. 

• You’re an engineer, not a coder or a frameworker. You embody an engineer's mindset, always curious about the mechanics behind the scenes. 

• You have mastered the art of automated testing, especially unit tests. 

• You’re enthusiastic about learning by doing and are committed to putting in the effort to continuously improve your skills. 

• You speak and write acceptable English – not perfect English, just acceptable – since you will be working with people from all around the world. 

• You value teamwork, prioritize collaboration, and focus on collective goals and harmony in the workplace. 

• You’re self-motivated and self-disciplined and thus work well in a flat hierarchy with lots of freedom. 

• You love to have creative freedom, make independent judgments, and live up to the responsibility that comes with that freedom. 

• You’re driven by the desire to make a positive impact in the world and to improve the lives of others. 

• You’re located in a time zone anywhere from South America (UTC -5) and all the way to East Asia (UTC+8), including Europe (UTC+0).

Bonus Points

You get bonus points if you… 

• have expertise in TDD, DDD, Event Sourcing, and CQRS. 

• hold a Master’s Degree in Computer Science. 

• possess strong skills in database management, including scaling and optimization. 

• have experience with technologies such as Stripe, Swoole, or Analytics tools. 

• have contributed to open-source projects (you’ll join a team of Laravel/framework contributors). 

• have an AWS certificate. 

• have experience with Docker, Linux Servers, and DevOps. 

• consider yourself a security expert/enthusiast. 

What we can offer

• A founder and CEO who is also a developer, understanding your challenges and triumphs. 

• A zero-effort development environment based on Docker, streamlining your workflow. 

• The opportunity to refine and develop battle-tested guidelines for PHP and Laravel. 

• A team of Senior Developers with a commitment to writing testable clean code. 

• Bi-weekly knowledge-sharing sessions and 3 meeting-free days weekly for focused work. 

• Access to a comprehensive library of books and courses, ensuring your skills and knowledge remain at the forefront. 

• A full-time position within a fully remote organization. Daily video-based collaboration with your colleagues from elsewhere on the planet, and you'll get to meet up on team trips every year.

• A work culture with no fluffy titles, political agendas and corporate drama. Your colleagues value your warm character, your strong work ethic, and the results you deliver. Junior or senior, if you embody old-school virtues of always striving to deliver results, learn and become better every day, you'll thrive at the IxDF.

• A daily mission to help impact, empower, and enrich the lives of millions of people by creating affordable high-end design education to everyone across the planet. It'll be yours too.

• A company where the distance between idea and execution is minimal. We're a highly agile organization with zero bureaucracy or corporate politics – and with exceptional order and efficiency.

• A company culture where passion meets high performance and excellence. To help us improve the world (and yourself in the process), you'll need grit, strong work ethic, long-term thinking, and self-discipline.

• We thrive because we have a hands-on attitude and a bias towards action as opposed to fluff-filled, unrealistic strategies. You'll need crisp execution skills yourself and the ability to impress your colleagues with concrete results, just like they'll impress you.

Salary and compensation

Tether is looking to hire a Senior QA Engineer to join their team. This is a full-time position that can be done remotely anywhere in the United Kingdom.

Blockchain Developer

Hong Kong

CMC /

Full-time /

Remote

Apply for this job

Responsibilities

1. Responsible for the development and implementation of dex underlying platform applications

2. High-performance API development (front-end docking, data, etc.)

3. Daily platform maintenance & performance improvement

Requirements

1. At least 2 years of blockchain development experience

2. Master one or more languages of Golang, Java and NodeJS for several years

3. Master the development experience of public chain (ETH or other) and other smart contracts

4. Familiar with common DB (Mysql, postgreSQL, Redis, mongodb)

5. Have a certain understanding of Linux common commands, Docker and K8S microservice systems.

6. Specific good teamwork spirit & execution, strong ability to analyze and solve problems.

7. Basic or Fluent English level

Apply for this job

⬇

Apply Now

At IMC, technology is not a department; it’s at the heart of everything we do. Developed in-house, our innovative software makes millions of trading decisions daily, and we win bymaking better and faster decisions than our competition.

IMC’s Zug-based C++ Crypto Execution development team works on software that sits directly in the latency-critical loop of our technology stack and touches every part of our organisation. From ensuring our connectivity to the market and handling massive amounts of data, to implementing complex trading algorithms and integrating advanced hardware solutions.

Your Core Responsibilities:

As a software engineer, you’ll work in multidisciplinary teams alongside other engineers as well as traders, researchers, and quants to deliver challenging projects, while taking ownership of the end-to-end product development – from requirements gathering to production. You’ll write reliable, high-performance software while balancing time to production with quality and testability. Advanced automated testing and daily deployments will allow you to achieve agile and incremental benefits. Within a complex landscape of varying systems and technologies, you’ll be constantly challenged to consider trade-offs between latency, throughput, simplicity, scalability and maintainability.

• Coding, developing, testing, deploying and maintaining applications and automations for Trading Teams and/or Hardware Developrment and Execution Teams.
• Working through internal client requests. Gathering details, requirements and feedback from a range of internal stakeholders in order to implement creative automation solutions using innovative coding practices.

Your Skills and Experience:

• Strong programming skills in C++. Experience in the latest versions of C++ is highly desirable
• Familiarity with Python – preferred
• Familiarity with Docker and Kubernetes
• Comfortable in Linux environments
• Experience as a team lead and/or mentoring more junior engieers
• Experience gathering business requirements, communicating with key stakeholders and delivering solutions quickly
• The ability to work on greenfield projects under minimal supervision and to take full ownership of the applications you build
• A high degree of flexibility and adaptability: willing and able to deal with uncertainty and ambiguity in a rapidly evolving environment
• Strong troubleshooting and diagnostic skills; ability to solve problems creatively and proactively
• Prior knowledge of trading / capital markets isnotrequired. Curiosity and a willingness to learn is.

⬇

Apply Now

=nil; Foundation has been at the forefront of Ethereum scalability solutions since 2018. With a mission to overcome the Ethereum scalability challenge, our team is dedicated to launching our own L2 solution — =nil; zkSharding, a zkRollup that securely scales Ethereum empowering web3 developers to build scalable, secure, and composable applications.

Our architecture supports parallel transaction processing across multiple execution shards, each validated by zero-knowledge proofs (ZKPs) and EVM opcode compatibility. Interoperability among these shards is seamlessly maintained through a native cross-shard communication protocol, enabling efficient and secure interactions within the network.

We are looking for someone to join our Integration Team. The team key responsibilities are:

• I**ntegration**: Build and integrate tools like explorers, wallets, plugins, and extensions, ensuring a seamless user experience with =nil;
• Decentralized Application Development: Architect and develop the first dApps on top of =nil;, utilizing sharded architecture and multi-currency features. This involves exploring innovative project ideas or adapting existing dApps like Uniswap V2 to the =nil; ecosystem, pushing the boundaries of decentralized technology

Responsibilities

• Work on internal integrations to support =nil;, such as developing tools like the hardhat-plugin, block explorer, in-browser IDE, Block Indexer, and more. =nil; protocol is written in Go, and most integrations utilize TypeScript. Examples of existing integrations include:
  - CLI: Command-line interface for interacting with =nil; (written in Go)
  - Hardhat-plugin: Adapts requests and responses to match =nil; RPC and unique features (TypeScript)
  - Block Explorer: A tool for viewing block and message data (TypeScript)

• Develop and Design the first cross-shard dApps on top of =nil;, leveraging the sharding and multi-currency features. Examples include:
  - Adapting Uniswap V2 to =nil; by adding multi-currency support and modifying the architecture to distribute load across multiple shards.
  - Designing the architecture for an orderbook DEXto operate efficiently on a sharded blockchain.

Qualifications

• Strong engineering background with the ability to adapt to various programming languages and tech stacks as required by different projects (experience with Go, TypeScript, or Solidity is a plus)
• Willingness to learn and work with Web3 protocols and blockchain technologies, even if prior experience is limited
• Ability to design and implement scalable and secure systems in a decentralized environment
• Independence and productivity, with the ability to take ownership of projects from inception to completion
• Proficiency in English (B2+), both written and spoken, to effectively collaborate with international teams

Benefits

Apply to discuss your benefit package, including health insurance, language courses, relocation support or other care the company may provide.

⬇

Apply Now

Ready to be pushed beyond what you think you’re capable of?

At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.

To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems.

Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be.

The Consumer Product Group builds the sustainable engines of growth for Coinbase that bring open financial services to 1 billion people with products like Advanced Trading, Staking, and Coinbase One. Consumer product engineers strive to make the Coinbase retail app the easiest-to-use, fastest, and safest experience for everyone across the globe to access and participate in the cryptoeconomy.

Our team focuses on accelerating the development of high quality products by enabling validation of product behaviors at scale through automated test infrastructure. We are entirely engineering driven, identifying opportunities to build innovative tools and infrastructure to enable developers to test high-fidelity production behaviors during development to enable catching and fixing bugs as early in the development cycle as possible. We are seeking an experienced and dynamic Senior Frontend Software Engineer to join our Consumer Engineering Test Infrastructure team at Coinbase.

What you’ll be doing (ie. job duties):

Test Infrastructure and Architecture

• Develop and implement automated testing infrastructure to scale the validation of product behaviors on Mobile and Web surfaces
• Evaluate and introduce new testing tools and methodologies to improve efficiency
• Oversee the creation and execution of test plans, test cases, and test scripts, to inform automation opportunities
• Integrate automated tests into CI/CD pipelines and streamline the testing process within the development lifecycle

Leadership and stakeholder management

• Mentor junior engineers, fostering a culture of continuous improvement and innovation
• Partner deeply with Consumer product teams and align on outcomes
• Define testing best-practices and drive culture change within product teams to adopt them
• Provide regular status updates to stakeholders on progress towards quality outcomes

Metrics and Insights

• Ensure thorough coverage across functional, integration, performance, and security testing
• Understand quality gaps, develop insights and drive best practices for testing, defect tracking and resolution

What we look for in you (ie. job requirements):

• You have at least 2 years of Frontend experience in software engineering and at least 4 years of experience in developing web apps and shipping user-facing features with JavaScript and modern, component-based JS frameworks like React.
• You have a good knowledge of testing tools, methodologies and best-practices in the Frontend space, having used and developed them for Mobile and Web products.
• You've developed and shipped user-facing features using component-based UI frameworks.
• You’re familiar with current trends and best practices in front-end architecture, including performance, security and usability.
• You write high quality, well tested code to meet the needs of your customers.

Nice to have:

• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

JOB# GCFET04US

#LI-Remote

Pay Transparency Notice: Depending on your work location, the target annual salary for this position can range as detailed below. Full time offers from Coinbase also include target bonus + target equity + benefits (including medical, dental, vision and 401(k)).

Pay Range:

$152,405—$179,300 USD

Please be advised that each candidate may submit a maximum of four applications within any 30-day period. We encourage you to carefully evaluate how your skills and interests align with Coinbase's roles before applying.

Commitment to Equal Opportunity

Coinbase is committed to ersity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Know Your Rights notice here. Additionally, Coinbase participates in the E-Verify programin certain locations, as required by law.

Coinbase is also committed to providing reasonable accommodations to iniduals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).

Global Data Privacy Notice for Job Candidates and Applicants

Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.

⬇

Apply Now

Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors.

We are looking for a senior low level C++ developer with expertise in low latency development, ideally in cryptocurrency markets or HFT.

Your future role within QRT

• Pivotal role in enhancing QRT’s market access systems to meet the demands of low-latency and high-frequency trading in cryptocurrency markets.
• Work closely with traders and researchers to understand the unique requirements of cryptocurrency trading and provide timely feedback and innovative solutions.
• Collaborate with Linux administrators and network engineers to ensure optimal system setup and deployment, leveraging cloud infrastructure and modern devops practices.
• Part of the QRT Market Access team, enhancing and maintaining systems that cover global markets, with a special focus on the cryptocurrency ecosystem.

Your present skillset

• Expert skills in C++ and Linux platforms.
• Proven experience in low-latency optimization and tuning techniques.
• Experience with market access systems in cryptocurrency markets.
• Familiarity with cloud environments and modern CI/CD pipelines.
• Good knowledge of crypto products is a plus.
• Strong communication and interpersonal skills are desirable.

QRT is an equal opportunity employer. We welcome ersity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.

⬇

Apply Now

Consensys is the leading blockchain and web3 software company founded by Joe Lubin, CEO of Consensys and Co-Founder of Ethereum. Since 2014, Consensys has been at the forefront of innovation, pioneering technological developments within the web3 ecosystem.

Through our product suite, including the MetaMask platform, Infura, Linea, Diligence, and our NFT toolkit Phosphor, we have become the trusted collaborator for users, creators, and developers on their path to build and belong in the world they want to see.

Whether building a dapp, an NFT collection, a portfolio, or a better future, the instinct to build is universal. Consensys inspires and champions the builder instinct in everyone by making web3 universally easy to use and develop on.

Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on. 

You’ll get to work on the tools, infrastructure, and apps that scale these platforms to onboard one billion participants and 5 million developers. You’ll be constantly exposed to new concepts, ideas, and frameworks from your peers, and as you work on different projects — challenging you to stay at the top of your game. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies. 

About MetaMask

We’re building for a future where the internet and world economy empowers people through interactions based on consent, privacy, and free association. Where both communities and iniduals flourish. To accomplish that, we’re working hard to make web3 accessible for everyone around the world.

MetaMask is both a crypto wallet and a gateway to the decentralized web. Our tools help people create communities, play video games, access financial services, make payments, invest in assets, protect against economic turmoil, and more. Our browser extension and mobile platforms meet the needs of millions of users and developers across the world.

Originally a humble key manager, today MetaMask serves over 30 million monthly active users as a decentralized application development platform, an aggregator of decentralized cryptocurrency exchanges, and a decentralized identity manager.

MetaMask Card, a newly formed team, is on a mission to integrate crypto with traditional payment systems. As a Software Engineer on our team, you'll be at the forefront of developing and enhancing features that make using crypto assets outside the crypto universe seamless and intuitive.

What you’ll do

We are looking for a Software Engineer who's eager to pioneer the next wave of crypto adoption by developing innovative features for MetaMask Card and refining our current offerings.

This will include work related to the MetaMask Card offering and how we can facilitate the integration of web3 with traditional payment methods. Many of the activities we focus on are related to user experience (mobile / web / browser extension) and API integration.

You'll be responsible for developing new features and managing various partners, payment methods, and crypto assets. Your goal is to streamline the integration process while curbing the growth of technical debt. Concurrently, you'll engage in research to conceive innovative features.

Would be great if you brought this to the role

Ideal candidate

You're well-acquainted with the Ethereum ecosystem and adept at building products across mobile, web, and backend platforms. With a keen sense of user experience, you're dedicated to enhancing it at every turn.

Would be great if you brought this to the role

• 3+ years of experience as a Full Stack Software Engineer working on Production applications
• Experience with mobile development (React Native)
• Experience with web development (React)
• Experience with back-end development (Node/Express/NestJS)
• Experience working on agile projects in an Agile environment
• Experience working in CI/CD setup
• Experience working in a distributed, remote team environment
• Excellent communication skills
• Writing good technical documentation
• Located in North or South America/able to work PT or ET business hours

Bonus point for any of:

• Understanding of how traditional debit/credit card protocols work
• Understanding of the Ethereum ecosystem
• Experience with third-party integration (web views, APIs, OpenAPI specifications…)
• General interest in DevOps topics / experience with Docker and/or Kubernetes and deploying cloud infrastructure (AWS / Azure)
• Interest in streamlining and automating recurring processes
• Blockchain / smart contract development: Solidity / Ethereum, Web3.js or Ethers.js library
• Experience using or working with decentralized applications or web3 protocols
• BSc/MSc in Computer Science or related subject

Don't meet all the requirements? Don't sweat it. We’re passionate about building a erse team of humans and as such, if you think you've got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we're ready for you to challenge our thinking on who needs to be in this role.

In the rapidly evolving Web3 space, we believe that everyone is a builder. This expansive paradigm requires a range of backgrounds, talents, skills, and experiences to influence and shape the future. At Consensys, this ersity fuels our ability to shift control and redefine the realm of possibility. We are committed to ensuring that our technology empowers people and communities with economic and political agency through decentralized technologies. We welcome the range of perspectives and differences and celebrate them. We're excited to see how your unique skills as a builder can contribute to our vision, drive innovation, and help us shape a more inclusive Web3.

Consensys is an equal opportunity employer. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law. Consensys is aware of fraudulent recruitment practices and we encourage all applicants to review our best practices to protect yourself which can be found (https://consensys.io/careers/best-practices-to-avoid-recruitment-fraud/).

⬇

Apply Now

Teleport is hiring a remote Senior Fullstack Engineer - Policy. This is a full-time position that can be done remotely anywhere in the United States, Canada, Australia, England, Ireland or Poland.

Teleport - The open infrastructure access platform.

We are seeking an AI Prompt Engineer to play a pivotal role in shaping how AI interacts with users within our ecosystem. Your primary responsibility will be to design, refine, and optimize prompts that enhance the performance, accuracy, and contextual understanding of AI models aligned with our product vision.

In this role, you will work closely with our product and tech teams to understand user needs and develop custom-tailored prompts that drive engaging, insightful, and high-quality AI interactions. Your expertise will be essential in advancing our AI-powered NFT ecosystem, ensuring that our platform delivers dynamic, intelligent, and value-driven AI-generated experiences.

If you’re passionate about pushing the boundaries of Web3 and AI, we’d love to hear from you!

About Tiny SPL

Tiny SPL is a cutting-edge protocol designed to address Solana’s unique rent challenges through state compression, making the blockchain more affordable, inclusive, and efficient. Our innovative zkNFT standard drastically reduces data storage costs while enabling proof of ownership without incurring rent fees, which earned us first place at the ZK Compression sidetrack at the Solana Radar Hackathon and the support of top Solana thought leaders.

We also launched Tiny AI, an AI-powered no-code launchpad that turns ideas into fully fledged AI NFT ecosystems utilising our zkNFT standard. We are integrating AI into NFTs, creating non-fungible assets with agentic capabilities to build ecosystems that can interact, adapt, and evolve.

More about us.

Key Responsibilities

• Work collaboratively with our product development team to understand user needs and build context around AI language models
• Integrate prompts into our application, ensuring that they are cohesive with our product vision and design language
• Design, test, refine high-quality custom prompts to improve the user experience and increase engagement
• Test and debug prompts to ensure they are functioning correctly and conduct A/B testing on different prompt variations to improve accuracy and reduce hallucinations
• Continuously optimize and improve the prompts based on user feedback and usage data
• Research LLM jailbreaks, adversarial attacks, and prompt security to prevent manipulation in AI models for Web3
• Stay up-to-date with the latest developments in web3 and AI to inform prompt development and implementation e.g. ensuring AI agent chatbots are aligned with the latest developments

Key Qualifications

• Experience crafting and optimizing prompts for LLMs in production use cases.
• Strong understanding of AI models and prompt engineering techniques
• Ability to analyze AI outputs, debug failures, and implement improvements iteratively
• Fluent in English with strong communication skills
• Organized, adaptable, and able to thrive in a collaborative team setting
• Self starter with strong problem-solving skills and attention to detail
• Ability to work remotely, with a flexible schedule accommodating global time zones
• Ability to navigate ambiguity, adapt to change quickly, and thrive in a fast-paced setting
• (Bonus) Familiarity with Web3 and blockchain and has experience with on-chain AI implementations

About pganalyze

At pganalyze, we’re redefining how developers optimize one of the world’s most popular databases, PostgreSQL. Our software gives companies like Atlassian, Robinhood, and Notion the tools to solve their most complex Postgres performance challenges, ensuring their mission-critical applications run smoothly at scale.

By joining us, you’ll tackle the complex technical and user experience problems at the heart of large Postgres deployments, collaborate with a passionate team and open source community, and, together, help shape the future of Postgres. Our product is heavy on automated analysis and custom visualizations, and we build advisors to make automatic recommendations, such as the best index to fix a slow query.

We are a fully remote company, with the core team based in the San Francisco Bay Area. Our company is independent, self-funded, and profitable, giving us complete control over our product roadmap and priorities. We emphasize autonomy and focus time by having few meetings per week.

We welcome people of different backgrounds, abilities, experiences and perspectives. Having a work environment that is erse, inclusive and focuses on learning from one another is central to how we operate. Working together is a form of community, and we care about the shared spaces being safe and supportive.

About the role

You will enjoy working at pganalyze if you care about solving customer’s problems end-to-end based on a comprehensive understanding of their infrastructure, and the role of the Postgres databases in it. You will work with Enterprise customers on integrating and adopting pganalyze to level up their organization’s observability practices, and train customers on pganalyze’s monitoring functionality, Advisors and Query Tuning.

Your core responsibility: To help onboard customers to the product by resolving issues they experience in their infrastructure (be it AWS, GCP, Azure or on-premise), commonly when deploying our pganalyze Enterprise Server product. Your work will also involve having an understanding of common reasons customers choose pganalyze, and having a good understanding of Postgres, being able to jump into the details to figure out how Postgres behaves in certain situations, to guide customers towards a comprehensive solution.

You will directly work with our VP of Sales, as well as our Founder & CEO on strategic deals, and develop the playbook for integrating pganalyze in complex customer environments. Our team is cross-functional, and our goal is to improve the pganalyze product where we can, to allow repeated delivery of a great customer experience.

Whilst this role is customer-centric, we anticipate travel to be minimal as most of our customer communications are online during US day time.

At pganalyze you will:

• Work on closing strategic Enterprise deals by quickly identifying integration issues and partnering with customers to resolve them
• Write automation code and scripts to help customers solve implementation problems
• Think creatively how to bridge the gap from product capabilities to a customer’s requirements
• Improve our integration with common deployment methods such as Kubernetes, for example by contributing to our Helm charts
• Work on better product documentation and enable customers to use pganalyze more effectively
• Participate in our support rotation, and help drive improvements to how we handle customer support (our support rotation is currently staffed by our engineering team)
• Help with new product development by gathering feedback in collaboration with our design lead (learn more about our design principles)
• Collaborate with other engineers on shipping new functionality end-to-end

Previously, you have:

• Worked professionally for 5 years as a solutions/sales engineer, or have at least 5 years of software engineering experience with an active interest to move into a customer-centric role
• Worked with cloud platforms such as AWS, GCP or Azure for at least 3 years
• Written code with Rust, Go or Ruby for at least 3 years
• Written code that fetches data and/or interacts with cloud provider APIs
• Worked closely with customers, and have strong technical communication skills
• Used Postgres for multiple projects, and are familiar with using “EXPLAIN” on a query
• Created indexes on a Postgres database based on a query being slow
• Structured your work and set your schedule to optimize for your own productivity

Optionally, you also have:

• Presented complex technical topics to an external audience
• Worked in environments where Kubernetes is the deployment method of choice
• Used APM and tracing tools to understand slow requests end-to-end
• Written your own Postgres extensions or contributed to the Postgres project
• Developed technical demos end-to-end, from the concept to the implementation
• Hosted webinars on complex technical products

Salary and compensation

Benefits

💰 401(k)

🌎 Distributed team

🤓 Vision insurance

🦷 Dental insurance

🚑 Medical insurance

🏖 Unlimited vacation

💰 401k matching

🏬 Coworking budget

🖥 Home office budget

💰 Equity compensation

JOB DESCRIPTION

Seed Oil Scout is seeking a talented and motivated Full-Stack software engineer to join our innovative team. This role is perfect for a new graduate or senior in college looking to gain hands-on experience in a fast-paced, AI-driven startup environment.

Join us in our mission to revolutionize the way people think about dining and health!

Applications can be submitted at the bottom of this page.

KEY RESPONSIBILITIES

What You’ll Do

Reporting to our Founder, you’ll be responsible for the following:

Backend Development & Integration:

• Work on API integrations with Node.js to power features such as payments (Stripe), user analytics (Amplitude), and subscription management (RevenueCat).
• Create and maintain scalable and maintainable backend services that enhance app performance and reliability.
• Build robust data pipelines to streamline the collection and analysis of user and app performance data.

Analytics & Performance:

• Collaborate with the product and data teams to ensure effective implementation of analytics platforms.
• Troubleshoot, debug, and optimize the application for maximum speed and scalability.

Mobile Development:

• Develop and maintain high-quality Flutter code for iOS and Android applications.

KEY COMPETENCIES

What You Need

• 2+ years of experience in Flutter app development.
• Strong experience with Node.js, API integrations, and server-side development.
• Familiarity with data analytics platforms like Amplitude, RevenueCat, or similar.
• Experience with cloud services (e.g., Firebase, Google Cloud Platform).
• Knowledge of SaaS platforms like Stripe and subscription management tools.
• Natural and deep understanding of US popular culture across the decades and today, as incredible marketing is at the core of SOS.
• Solid understanding of SQL and data management practices.
• Excellent problem-solving skills and a strong sense of ownership in delivering great user experiences.

Technologies We Use

• Flutter for cross-platform mobile development
• Node.js for API and backend services
• Stripe for payment processing
• Amplitude and RevenueCat for data analytics and subscription management
• Firebase for backend infrastructure
• SQL for database management

Why Join Us?

The Company:

Seed Oil Scout is a top-50 iOS app in Food & Dining globally dedicated to bringing transparency to restaurant sourcing and ingredients.

With over 1M downloads last year and over 475K instagram followers including mega-celebrities like Joe Rogan, the world is watching as Seed Oil Scout changes American dining for the better.

We've done high profile announcements for Sweetgreen, released a hit country single and enjoy harassing restaurants like Carbone, check that out here.

If you strongly dislike seed oils and becoming one of the first employees at the hottest company in dining tech excites you, come help us change the world.

Salary and compensation

Benefits

🤓 Vision insurance

🦷 Dental insurance

🚑 Medical insurance

🏖 Paid time off

📚 Learning budget

💪 Free gym membership

🚫 No politics at work

The Company

The three co-founders are all PhDs in a top-ranking university, with rich experience in both blockchain and AI. Our client has partnerships with leading investors, including IDG capital, ABCDE, and Amber group, backed by both the company’s tech and co-founders’ close personal relationship with them. They sit at the intersection between AI and Web3. Our client looks for candidates who share a similar outlook and passion to join us.

The Responsibilities

• Develop and maintain AI-driven Web3 applications.
• Write scalable, secure Python (backend) and TypeScript (frontend) code.
• Build APIs and microservices for Web3 integration.
• Utilize NGINX, GitHub workflows, Docker, and cloud platforms.
• Optimize performance and security.
• Collaborate with AI and blockchain teams.

The Requirements

• 2+ years experience in fullstack development.
• Knowledge of SQL (PostgreSQL, MySQL) & NoSQL (MongoDB, Redis).
• Strong proficiency in Python and Typescript.
• DevOps expertise (NGINX, GitHub Actions, Docker, AWS).
• Experience with APIs (REST, gRPC).

The Preferred Qualifications

• Web3 experience (blockchain, smart contracts, DeFi).
• Familiarity with ethers.js/web3.js.
• AI/ML pipeline knowledge.
• Security best practices for Web2/Web3.

⬇

Apply Now

Astronomer is hiring a remote Sales Engineer. This is a full-time position that can be done remotely anywhere in the United States.

Astronomer - Modern data orchestration.

About Us

Ideal Protein is a leading provider of scientifically validated weight loss and wellness solutions, dedicated to empowering iniduals to achieve and maintain their health goals. Our commitment to innovation, excellence, and customer success has made us a trusted partner in the health and wellness industry.

About the Role

We are looking for an experienced full-stack Javascript/Typescript developer to join our team. If you’re excited about having a meaningful impact on a small but growing development team, and value the freedom to tackle problems in creative ways, this role could be a great fit.

Our stack includes Angular on the frontend and TypeScript on the backend, with some legacy services in JavaScript that we are actively migrating.

What We’re Working On

We have two main areas of focus:

1. Product Enhancements

   We’re creating new ways to support modern weight loss by enhancing the customer experience and equipping clinics with better tools to grow their business.

2. Platform Modernization

   Over the past decade, the development world has evolved with tools that enhance both the developer and user experience. We’re investing in updating our platform to adopt modern tools and best practices, enabling us to build and improve features faster. This is an exciting area where you can make an outsized impact.

What You’ll Do

• Balance shipping new features with investing time in platform improvements.
• Apply modern product development practices and modern JavaScript knowledge, including experience with modern frameworks, to drive impactful solutions.
• Build new features with hands-on coding while collaborating closely with the team.
• Lead technical projects by designing elegant, maintainable solutions that align with product and business goals.

Preferred Experience

• Strong experience in product engineering principles and product team collaboration. You measure success by solving customer problems, not just by the code you write.
• Expertise in applying domain-driven design principles to system architecture. Experience with modern Node.js frameworks (e.g., Nest, Redwood) is a plus.
• Familiarity with complex refactoring projects or migrations is a strong advantage.

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🏖 Paid time off

⬜️ No whiteboard interview

👀 No monitoring system

🚫 No politics at work

About us

Ambush is an AI company developing AI research & products that accelerate onchain adoption. We’re building Web3’s first autonomous AI agents to simplify wealth creation & onchain safety.

We’re a lean & hyper performance-oriented team; we are competitive, we like moving fast, and we run head-first towards seemingly impossible ideas. Our entire team is crypto-native & we have a shared North Star of solving web3’s hardest challenges.

Our team is led by one of crypto’s prominent anons, Psycho.

About the role:

We’re hiring a Solana-focused backend engineer with proven experience building performant backends & infra for high-growth Solana products.

As our lead backend engineer, you will work directly alongside the CTO to help ensure that our infrastructure & backend is being built to support demanding requirements for performance, security, and scalability.

Because we are an AI company building onchain products, the ideal candidate has a strong general interest in DeFi, and uses LLMs such as GPT, Cursor, Co-pilot, or similar in their daily engineering work flow.

Requirements:

• 4+ years of backend development experience, with strong expertise in Rust and/or Golang.
• 2+ years of hands-on experience with Solana-based projects, including working with RPC nodes, Solana programs, and SDKs.
• Proficiency in designing and implementing scalable backend systems using microservices architectures and event-driven systems.
• Solid understanding of PostgreSQL and familiarity with NoSQL databases.
• Experience deploying and managing systems in AWS or other cloud environments, with knowledge of infrastructure as code (Terraform).
• Familiarity with Docker and containerization technologies.

Responsibilities:

• Design, build, and maintain backend services that integrate seamlessly with the Solana blockchain, including RPC interactions, program deployment, and on-chain data management.
• Develop and document high-quality APIs for internal teams and external partners.
• Optimize system performance and scalability for Solana-integrated applications.
• Collaborate with the team to design and implement innovative blockchain-enabled features.
• Stay informed about advancements in the Solana ecosystem and contribute to strategic product development decisions.
• Manage infrastructure deployments and production systems in cloud environments.

Not required, but a strong bonus:

• Prior commercial experience as a smart contract dev or security auditor
• Strong Python skills

Why join Ambush?

• Industry leading pay: strong base salary + uncapped profit share + equity
• Lean & high-impact team; we hate bureaucracy & will not grow past ~10 people
• One of the fastest growing AI companies in crypto
• Proven leadership team with several acquisitions under their belt

Internal full-time hires only, no contractors or agencies

1Password is hiring a remote Staff Developer, Rails. This is a full-time position that can be done remotely anywhere in Canada or the United States.

1Password - The world's most-loved password manager.

Solana Foundation is looking to hire a Developer Advocate - Education to join their team. This is a full-time position that can be done remotely anywhere in the United States.

"

About Us

The Role

What You’ll Do

* Develop & Maintain: Build, enhance, and maintain web applications using the Django framework, ensuring clean, efficient, and scalable code.

What We’re Looking For

* Strong experience with Django and a passion for writing clean, modular, and efficient Python code.

Join us to build a product that not only transforms how AI voice agents are tested but also sets the standard for reliability in an increasingly competitive market. If you're ready to push the boundaries of technology and make a tangible impact, we’d love to hear from you.

",

Webflow is hiring a remote Senior Frontend Engineer, Collaboration. This is a full-time position that can be done remotely anywhere in Canada or the United States.

Webflow - Responsive web design tool, CMS, and hosting platform.

NearForm is hiring a remote Senior Developer. This is a contract position that can be done remotely anywhere in Poland.

NearForm - Open enterprise software for rapid digital innovation.

Splice is hiring a remote Director, Engineering. This is a full-time position that can be done remotely anywhere in the United States.

Splice - Building a creative ecosystem for music producers.

Join our dynamic team as we push the boundaries of technology in the vintage clothing marketplace. Established by top tier consultants and private equity professionals, our ambitious startup is set to reach significant capitalization by 2026. We are crafting an AI-driven marketplace that leverages an exclusive sourcing model to tap into a growing market niche. We seek a temporary Full Stack Developer skilled in AI voice and image processing technologies to revolutionize how we connect with our inventory sources and customers.

Responsibilities:

• Develop a voice bot integrated with external databases that enhances sourcing capabilities and seamlessly incorporates conversation outputs.
• Integrate AI-driven tools for creating and processing high-quality images tailored for an e-commerce platform.
• Implement and optimize e-commerce functionalities to support a cutting-edge shopping experience.
• Collaborate with the team to align technical solutions with strategic business goals.
• Pioneer innovative AI solutions that can transform marketplace interactions across various communication channels, including landline phones, text messages, and emails.

Requirements:

• Demonstrated proficiency in AI coding and automation processes, with a strong portfolio of relevant commercial use cases.
• Proven experience with AI applications in e-commerce, particularly in voice bot generation and AI-enhanced image processing.
• Expertise in the latest GenAI tools for voice and chatbots, with a deep understanding of their advantages and limitations.
• Ability to work independently and adapt to the fast-paced nature of a startup.
• Excellent communication skills and a proactive approach to problem-solving.
• This position is open to international candidates outside of the US.

Salary and compensation

Benefits

📆 4 day workweek

👀 No monitoring system

🚫 No politics at work

Reddit is hiring a remote Staff Backend Engineer, Media Foundations. This is a full-time position that can be done remotely anywhere in the United States.

Reddit - The front page of the internet.

We’re looking for an Internet of Things Technical Lead with experience leading projects and collaborating closely with product owners.

In this role, you’ll be joining our team as a senior developer eager to find cost-effective, high-quality, pragmatic solutions to our clients' complex problems. You might identify as a Technical Lead, a Technical Architect, or a Technical Program Manager, and — as you might expect with “technical” in the title — you would be the person on the project team most responsible for delivering the most appropriate and cost-effective technical solution for the client’s needs.

Responsibilities will include:

• Crafting technical architecture plans through interfacing with clients to understand product requirements
• Planning development work with your team through scoping and estimation
• Developing and optimizing technical solutions while keeping in mind performance, scalability, maintainability, and cost-effectiveness
• Participating in code reviews, providing constructive feedback to teammates and ensuring adherence to best practices
• Contributing to project success by keeping a close eye on team velocity, project scope, budget, and timeline
• Negotiating with clients to align project scope with budget and timeline, if needed

The person we’re looking for is happy, relaxed and easy to get along with. They’re flexible on anything except conceits that will lower their usually outstanding work quality. They work “smart”, by carefully managing their workflow and staggering features that have dependencies intelligently — they prefer deep work but are OK coming up to the surface now and then for top level / strategic conversations.

We believe people with backgrounds or interests in design, art, music, food or fashion tend to have a well rounded sense of design & quality — so a variety of hobbies or side projects is a big nice to have!

Salary and compensation

"

Gander is building the next generation of AI technology for the aviation industry (usegander.com), starting in business and general aviation. Our products help aviation operators coordinate maintenance, fleet availability, airport operations, and crew scheduling. We are looking for rockstar interns (2-3) to join us for an immediate start (End of Feb ‘25) and continue on through the summer or convert to a full-time role upon graduation.

Interns at Gander will get to be at the bleeding edge of applying the latest AI technologies to the aviation industry (desktop agents, multi-model LLMs, and more) and get the opportunity to work hands on with aircraft operators. The team is small & based in NYC, however we are planning on several in-person sprints at customer sites and/or locations around the country to bring team members including interns not based in NYC together.

Job Responsibilities:

* Create Great Software: Take product requirements and turn them into beautiful, reliable, and high quality software and multiply your impact with code gen tools

Key Requirements

* Evidence of End-End Product Ownership: Experience building highly technical and/or well-designed personal projects

",

Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than Lemon.io — the marketplace that connects you with hand-picked startups in the US and Europe.

What we offer:

• The rate depends on your seniority level, skills and experience. We’ve already paid out over $11M to our engineers.
• No more hunting for clients or negotiating rates — let us handle the business side of things so you can focus on what you do best.
• We’ll manually find the best project for you according to your skills and preferences.
• Choose a schedule that works best for you. It’s possible to communicate async or minimally overlap within team working hours.
• We respect your seniority so you can expect no micromanagement or screen trackers.
• Communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah?
• We will support you from the time you submit the application throughout all cooperation stages.
• Most of our projects involve working in a fast-paced startup environment. We hope you like it as much as we do.
• Through our community, we will connect you with the best developers from more than 50 countries.

Requirements:

• 4+ years of software development experience.
• 3+ years of commercial experience with React.js.
• 3+ years of commercial experience with Python.
• Hands-on experience with Next.js, PostgreSQL, Node.js would be a plus.
• 3+ years of experience with AWS and TypeScript is a must.
• Strong technical skills: as a Senior Developer, you are expected to be able to create projects from scratch and have a deep understanding of application architecture.
• Clear and effective communication in English — advanced ability to discuss business tasks, justify decisions, and communicate issues. Good self-presentation is also essential for upcoming client calls.
• Strong self-organizational skills — ability to work full-time remotely with no supervision.
• Reliability — we want to trust you and expect that you won’t let us and the client down.
• Adaptability and Flexibility — the ability to onboard the project promptly after accepting it and start delivering results quickly.

Sounds good for you? Apply now and join the Lemon.io community!

Not your tech stack?

We have different projects for Senior Developers, so if you have 4+ years of commercial experience in software development and you are fluent with AI Engineering, DevOps, we would be happy to communicate and provide you with a project that matches your experience. Just apply, and we will share more details with you.

If your experience matches our requirements, be ready for the next steps:

• VideoAsk — watch a short video about our startup, up to 10 minutes
• Complete your profile on our website
• 30-minute screening call
• Technical interview
• Feedback
• Magic Box (we are looking for the best project for you).

P.S. We work with developers from 50+ countries in different regions: Europe, LATAM, the U.S. ., Canada, Asia (Philippines, Indonesia), Oceania (Australia, New Zealand, Papua New Guinea), and the the UK. However, we have some exceptions.

At the moment, we don’t have a legal basis to accept applicants from the following countries:

• European: Iceland, Liechtenstein, Kosovo, Belarus, Russia, and Serbia.
• Latin America: Cuba and Nicaragua
• Most Asian countries and Africa.

We expand and shorten the list of exemptions regularly.

We do not provide visa assistance, and our cooperation model does not include the benefits typically offered with direct hire.

Do you represent a company with engineers who match the description and want to collaborate with us through staff augmentation? Then register here.

About us

Seats.io is a team of 6 people building best-in-class reserved seating for online ticketing. We grew from a hobby project into a healthy B2B scaleup with 600+ customers across the globe. Every month, over 5M seats are booked through our interactive floor plans.

We like:

✅ Solving hard problems and having a laugh

What you’ll be doing

Same as the rest of the team: building a kick-ass product. You’ll champion your own features and help others with theirs.

From day one, and in no particular order, you will:

👉 talk to users to understand their needs

If you love crafting intuitive, high-performance interfaces for complex tools, you'll feel right at home.

What we look for

• A senior front-end developer (at least 5+ years of experience)
• Strong experience with graphics programming (canvas, svg, webgl, etc)
• A critical thinker - especially about your own work
• Fluent in both English and code
• An eye for detial, because pixels matter

Location

This is a remote position, but being in Europe - for time zone alignment - is highly preferred.

Compensation

We look for quality, and compensate accordingly.

Salary and compensation

Nansen is looking to hire a Staff Security Engineer to join their team. This is a full-time position that can be done remotely anywhere in Europe.

Biconomy empowers Web3 developers to build seamless, user-friendly dApps that work effortlessly across multiple blockchains. Our battle-tested modular account and execution stack eliminates traditional UX friction points, helping projects accelerate user adoption while reducing development costs. By processing over 50 million transactions across the 300+ dApps we’ve served, we’re powering the future of onchain economies.

The Role: Innovating at the Intersection of AI and DeFi

We are assembling a world-class team to redefine on-chain analytics using AI Agents & Machine Learning. As a DevOps Engineer, you will build and optimize the AI & ML infrastructure, enabling real-time wallet activity analysis, ML-driven tagging, and PnL insights at scale. You’ll work with Kafka, Snowflake, AWS S3, and high-speed data pipelines to process over 10-15 billion rows of historical data and real-time streaming events, ensuring a scalable, secure, and efficient AI ecosystem.

This is a high-impact role at the core of our AI-driven crypto intelligence platform.

What Will You Be Doing?

Scalable AI & ML Infrastructure

• Design & optimize cloud-native architectures for AI & ML-driven analytics on DeFi transactions.
• Develop and maintain high-performance, distributed computing environments that process billions of on-chain and off-chain events.
• Deploy and manage ML models & AI agents efficiently in Kubernetes (K8s) and other containerized environments.

High-Speed Data Engineering

• Design real-time streaming pipelines using Kafka for high-frequency on-chain transaction ingestion.
• Optimize Snowflake queries & storage solutions to handle large-scale blockchain datasets efficiently.
• Implement ETL/ELT pipelines for structured & unstructured blockchain data aggregation.

Infrastructure Automation & Reliability

• Automate cloud infrastructure using Terraform, Pulumi, or CloudFormation for seamless scaling.
• Enhance security & performance with CI/CD best practices for AI model deployment.
• Implement observability, logging & monitoring with tools like Prometheus, Grafana, and Datadog.

ML & AI Model Deployment

• Streamline model deployment for AI agents that analyze blockchain wallet behavior.
• Build infrastructure to support model training, inference, and real-time decision-making.
• Optimize GPU workloads for AI-driven pattern recognition & risk analysis.

Collaboration Across Teams

• Work alongside AI engineers, blockchain developers, and data scientists to integrate AI-driven insights into DeFi tools.
• Optimize node infrastructure & RPC services for multi-chain DeFi interactions.
• Research and implement best practices in Web3 DevOps, cloud automation, and ML infrastructure.

Requirements:

Core Experience

• 5+ years of DevOps experience, specializing in AI/ML infrastructure & high-scale data pipelines.
• Expertise in AWS, GCP, or Azure, focusing on scalable, event-driven architectures.
• Experience handling Kafka queues, Snowflake databases, and massive-scale data processing.

DevOps & Infrastructure Skills

• CI/CD Automation using GitHub Actions, CircleCI, Jenkins, or ArgoCD.
• Kubernetes & Docker for managing AI workloads and high-performance model inference.
• Infrastructure-as-Code (IaC): Terraform, Pulumi, or CloudFormation.

Data Engineering & AI Model Ops

• Experience with Kafka, Snowflake, and S3 for real-time & historical data processing.
• ML Model Deployment: Knowledge of TensorFlow, PyTorch, or ONNX for AI-based wallet analytics.
• Strong Python & Bash scripting for automation and orchestration.

Security & Reliability

• Security-first mindset: Experience with IAM, firewall management, and Web3 security best practices.
• Observability & Monitoring using Prometheus, Grafana, Datadog, or OpenTelemetry.

Bonus Skills

• Experience with multi-chain blockchain infrastructure (Ethereum, Solana, L2s).
• Knowledge of DeFi protocols, smart contracts, and risk analytics.
• Experience with AI inference at scale (Ray, Triton, Hugging Face Transformers, etc.)

What We Offer:

• Flexible Working Hours: Enjoy autonomy over your schedule.
• Generous Vacation Policy: 25 days vacation per year plus public holidays
• Competitive Salary: With regular performance reviews.
• Token Allocation: Be rewarded with tokens as part of our compensation package.
• Growth Opportunities: Be part of an exciting new project with significant career growth potential.
• Innovative Work Culture: Join a team that’s at the cutting edge of Web3, AI, and DeFi, and help shape the future of the digital economy.
• Fun and Engaging Team Activities: Game nights, virtual celebrations, and work retreats to keep things exciting.

At Biconomy, we believe in creating a erse and inclusive workplace. We are committed to being an equal-opportunity employer, and we do not discriminate based on race, national origin, gender, gender identity, sexual orientation, disability, veteran status, age, or any other legally protected status.

Biconomy empowers Web3 developers to build seamless, user-friendly dApps that work effortlessly across multiple blockchains. Our battle-tested modular account and execution stack eliminates traditional UX friction points, helping projects accelerate user adoption while reducing development costs. By processing over 50 million transactions across the 300+ dApps we’ve served, we’re powering the future of onchain economies.

The Role: Innovating at the Intersection of AI and DeFi

We’re assembling a new team to build an innovative AI-powered product aimed at transforming how users do on-chain transactions. This is a greenfield project in its early development, offering a unique opportunity to tackle complex challenges and push the boundaries of AI in Web3. We can share more details about the project throughout the interview process.

What Will You Be Doing?

• Develop next-generation AI for Crypto Transactions: Design and implement AI-driven solutions that enhance multi-chain interactions, focusing on scalability, security, and usability.
• Optimize AI & Multi-Agent System Performance: Work on improving system efficiency when interacting with AI models, mitigating hallucinations, and enhancing the performance of multi-agent systems for latency and accuracy.
• Build AI-powered automation systems: Develop and deploy LLM-based AI agents capable of interpreting and executing user intents, providing automated execution strategies for on-chain transactions.
• Deploy and fine-tune local AI models: Ensure high efficiency, accuracy, and security in real-world DeFi applications by fine-tuning LLMs and local machine learning models.
• Work with advanced blockchain infrastructure: Implement solutions that understand and process on-chain DEX transactions, bridge transactions across EVM and non-EVM chains, and optimize execution paths.
• Collaborate cross-functionally: Work closely with blockchain engineers, product teams, and UX/UI designers to integrate AI seamlessly into the Biconomy ecosystem.
• Stay on the cutting edge: Research and experiment with the latest advancements in AI, machine learning, and blockchain to keep our product innovative and competitive.

Requirements:

• 5+ Years of Software Development: Including at least 2 years in blockchain development, with proven experience leading technical teams and projects.
• Strong AI & ML Expertise: Hands-on experience deploying and fine-tuning LLM models and developing local AI models for optimized inference.
• Deep blockchain knowledge: Understanding of on-chain DEX transactions, bridge transactions across EVM and non-EVM chains, and the infrastructure behind them.
• DeFi Enthusiast: 2+ years of experience interacting with DeFi protocols and multi-chain ecosystems.
• Proficient in Python, TypeScript, and React, with a focus on clean, scalable, and maintainable code. Knowledge of Solidity or Rust is a plus.

What We Offer:

• Flexible Working Hours: Enjoy autonomy over your schedule.
• Generous Vacation Policy: 25 days vacation per year plus public holidays
• Competitive Salary: With regular performance reviews.
• Token Allocation: Be rewarded with tokens as part of our compensation package.
• Growth Opportunities: Be part of an exciting new project with significant career growth potential.
• Innovative Work Culture: Join a team that’s at the cutting edge of Web3, AI, and DeFi, and help shape the future of the digital economy.
• Fun and Engaging Team Activities: Game nights, virtual celebrations, and work retreats to keep things exciting.

At Biconomy, we believe in creating a erse and inclusive workplace. We are committed to being an equal-opportunity employer, and we do not discriminate based on race, national origin, gender, gender identity, sexual orientation, disability, veteran status, age, or any other legally protected status.

We’re looking for a senior generalist software engineer with expertise in backend and/or native app development, and interest in systems architecture and IoT.

In this role, you’ll work on a variety of client projects to find cost-effective, high-quality, pragmatic solutions to complex problems. Responsibilities will include:

• Crafting technical architecture plans through interfacing with clients to understand product requirements
• Developing and optimizing technical solutions while keeping in mind performance, scalability, maintainability, and cost-effectiveness
• Participating in code reviews, providing constructive feedback to teammates and ensuring adherence to best practices
• Contributing to project success by keeping a close eye on team velocity, project scope, budget, and timeline
• Negotiating with clients to align project scope with budget and timeline, if needed

The person we’re looking for is happy, relaxed and easy to get along with. They’re flexible on anything except conceits that will lower their usually outstanding work quality. They work “smart”, by carefully managing their workflow and staggering features that have dependencies intelligently — they prefer deep work but are OK coming up to the surface now and then for top level / strategic conversations.

We believe people with backgrounds or interests in design, art, music, food or fashion tend to have a well rounded sense of design & quality — so a variety of hobbies or side projects is a big nice to have!

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🤓 Vision insurance

🦷 Dental insurance

🚑 Medical insurance

🏖 Paid time off

📆 4 day workweek

🏔 Company retreats

🏬 Coworking budget

📚 Learning budget

🖥 Home office budget

💰 Profit sharing

⬜️ No whiteboard interview

👀 No monitoring system

Semaphore is a leader in hosted continuous integration and deployment, with over 50,000 developers relying on Semaphore to test and deploy their code. Our mission is to help teams ship their software faster and with more confidence by providing a robust and scalable platform for software delivery.

Our platform provides continuous delivery services for all mainstream programming languages as well as native support for building and shipping Docker containers. We aim to deliver the easiest to use and fastest CI/CD service. We work in small highly effective teams, so every team member is vital to the success of the company.

We’re looking for collaborative, detail-oriented people who are ready for a challenge. In this role, you’ll have the opportunity to take significant ownership of technical projects that will drive the success of the overall business. A strong candidate will bring solid product and technical acumen, combined with the ability to move fast (and fix things).

We are passionate about providing a remote, flexible and supportive work culture. Collaboration is in our DNA.

P.S. We are soon going to open-source, and are super excited about that! We hope you will be also. Be sure to check out https://semaphoreci.com/summit.

Examples of problems you’ll be solving

• Implementing new Semaphore features
• Improving the internal and external APIs of Semaphore
• Automating the release process, monitoring, and solving scalability issues
• Contributing to and collaborating on Open Source software
• Optimizing performance and scalability of Semaphore

Qualifications

• You have 5+ years of professional experience.
• You have experience with shipping services into production, and maintaining their quality.
• You have experience with developing database-backed web applications.
• You are proficient in one or more high-level languages.
• You are self-managed and capable of making effective decisions.
• You care about building maintainable, efficient, clean code.
• You speak and write well. We’re a distributed team so we’re extra mindful about communication.
• You are willing to master Golang and/or Elixir, our primary languages for writing Semaphore.
• You are proficient with following TDD/BDD practices for implementing new features.
• You have experience with taking responsibility for projects end-to-end from idea to completion.
• You have experience with Linux and the command line.

Benefits

• The impact of working on a product that’s competing on a global market.
• Join a small team of around 30 full-time people who love what they do.
• A healthy 40-hour work week, friendly and supportive work environment.
• Competitive salary.
• Company retreats.
• Space to learn continuously and choose the tools and equipment for your job
• Paid trips to conferences and books of your choice.
• Interact with developers that use Semaphore and talk about the latest and greatest way to develop and ship software.
• Paid membership at a fitness club of your choice

Semaphore is an equal-opportunity employer. Consistent with our mission of serving a erse and global audience, we value a erse workforce and inclusive culture which reflects that. We encourage applications from all qualified iniduals without regard to race, color, religion, gender, sexual orientation, gender identity or expression, age, national origin, marital status, disability, and veteran status.

WOO Network is looking to hire a Senior Technical Support Engineer to join their team. This is a full-time position that can be done remotely anywhere in APAC.

Job Description

We are looking for an experienced Smart Contract Auditor / On-Chain Engineer to join our fast-growing team. As a member of our team, you will be responsible for auditing and securing smart contracts, modeling edge cases and hack scenarios, as well as developing and maintaining on-chain infrastructure solutions. You will work closely with our blockchain developers and product teams to ensure the integrity and security of our smart contracts deployed across various decentralized platforms.

A key part of your role will be conducting in-depth research on emerging protocols and staying up to date with the latest trends, vulnerabilities, and innovations in the DeFi and blockchain space. This will help you ensure that our smart contracts are not only secure but also take full advantage of new, best-in-class protocol features.

Additionally, a solid understanding of on-chain execution, including optimizing transaction flows, is essential for this role. Experience with writing trading bots that interact with on-chain protocols or decentralized exchanges would also be highly beneficial.

If you are passionate about the intersection of blockchain technology, security, and innovative development, this role is for you.

Responsibilities:

• Research Emerging Protocols: Analyze new blockchain protocols, reviewing their documentation, audits, and smart contracts to identify risks and recommend improvements for integration.
• Code Review & Analysis: Review code for compliance with best practices, identifying potential security flaws, and ensuring that contracts function as intended.
• Smart Contract Auditing: Perform thorough security audits on smart contracts, identifying vulnerabilities, bugs, and optimization opportunities. Provide actionable recommendations to mitigate risks.
• Collaboration with Teams: Work closely with blockchain developers, product managers, and stakeholders to design and implement secure smart contract solutions.
• Troubleshooting and Technical Support: Provide support for ongoing issues or incidents related to smart contract vulnerabilities or failures.
• Documentation & Reporting: Maintain detailed reports and documentation on auditing processes, findings, and resolutions.

Requirements & Skills:

• 3+ years of experience in smart contract auditing and on-chain development.
• Strong proficiency in Solidity and in-depth understanding of Ethereum Virtual Machine (EVM) and gas optimization.
• Familiarity with decentralized finance (DeFi) protocols and platforms (e.g., Uniswap, Aave, Compound, Pendle).
• Deep knowledge of smart contract security best practices, including common vulnerabilities
• Knowledge of consensus mechanisms used in PoS systems (staking, restacking, slashing , etc …).
• Experience with on-chain execution, including transaction optimization, gas management, and effective interaction with DeFi protocols.
• Ability to provide clear technical documentation and communicate security findings to both technical and non-technical stakeholders.
• Fluent in English (wriYen and spoken), with the ability to communicate effectively in a distributed team.

Nice to Have:

• Experience with other blockchain platforms such as Solana, Cosmos, or
• Familiarity with formal verification techniques or static analysis tools for smart contract auditing.
• Experience writing and maintaining on-chain trading bots or algorithms that interact with decentralized exchanges or other on-chain assets.

We Offer:

• Competitive salary and performance-based bonuses.
• Remote-first environment with flexible working hours.
• A dynamic and fast-paced work environment where you can contribute directly to cutting-edge blockchain products.
• Opportunities for personal growth and skill development in the growing blockchain and DeFi space.
• A collaborative, innovative team of professionals passionate about blockchain, crypto, and DeFi.

Position: Full-time

Location: Flexible; availability during US trading hours is preferred.

About Edge Capital

Edge Capital is an innovative alternative hedge fund focused on digital assets, blockchain, and decentralized finance (DeFi) markets. We combine algo trading and macro strategies to identify untapped opportunities in these markets based on our multidisciplinary expertise in macro trading and analysis, portfolio, and risk management, combined with our extensive knowledge and experience in fintech, DeFi, and blockchain technologies.

What we’re looking for

StableUnitDAO is looking for a lead solidity architect for a complex DeFi protocol (not NFT)

Requirements

• DeFi solidity contracts deployed on mainnet in the last 12 months
• Knowledge of OZ libs and modern DeFi primitives
• You know system design of DeFi protocols, CDP, lending etc
• Experience with modern DeFi best practices

You must have prior experience with at least one of

• Projects with simultaneous multichain
• Projects with mission critical oracle
• Yield aggregators/optimizers
• CDP/Algo stablecoins
• Lending protocols

Detailed explanation of the protocol.

In this project you will work side by side with an architect who is ex 1inch, facebook, amazon, prizewinner of ethNY (award from Binance labs, Wyre, Matic), ethBoston (JPMorgan), ethDenver (MakerDao, Chainlink), ethLison (Gnosis), cs-national team, math degree, wrote multiple contracts with $1.1B in volume. The project itself is a winner of multe grants including Arbitrum security grant.

The protocol is 100% owned by a DAO, members of which are accomplished investors and DeFi builders, such as founders and early employees from 1inch, lobsterDAO, GearBox, PowerPool, Zerion, ZeroPool, STFX. Advisors and early investors of Binance, Matic, Bittensor, Trustwallet and others. We’re open for all formats of work, full/part-time, project-based or outstaff.

How to apply

Self-check: For some inexplicable reasons some folks lie about their experience, but is just a waste of our and your time. Be sure you know all main topics of “mastering ethereum”, read and actually understand solidity/opcode/evm specs, and can easily solve any task from https://ethernaut.openzeppelin.com.

If you are a good match:

1. Send us 2 addresses of mainnet smart-contacts you developed that you are most proud of.
2. We would schedule a single 30m tech interview.
3. After interview, we are immediately ready to sign the paid contract for the test period/project.

For any questions https://t.me/elpinguinofrio

Metabase is hiring a remote Open Source Community Advocate. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Metabase - The fastest, easiest way to share data and analytics inside your company.

"

* We are looking for a Founding Applied AI engineer to join the team. The ideal candidate is someone with 5+ years of experience. We are looking for someone that has built AI driven workflows, agents, or applications from the ground up to serve specific business outcomes. 

",