We’re looking for a strategic-minded AI Automation Developer to join our team on a long-term, part-time basis. In this role, you’ll take the founder’s clearly defined vision and turn it into elegant, reliable automations that streamline the business.

What You’ll Work On:

• Make scenarios (often complex, involving GPT, Notion, and Drive integrations)
• AI-driven document generation
• Expense tracking and budget monitoring
• Lead capture, nurturing, and client conversion workflows
• Tailored guest and client portals with role-specific logic
• Calendar-based triggers and deadline alerts
• Hierarchical document generation using GPT
• Internal logs, summaries, and trackers

Tech Stack:

• We use Make, Notion, and OpenAI (GPT-4). This isn’t just drag-and-drop automation; you’ll need to understand:
• APIs and JSON
• Regex and parsing logic
• Structuring data for AI input/output
• Debugging complex, multi-branch scenarios
• Code-level thinking when automation complexity increases

Bonus Skills:

• Familiarity with Python, JavaScript, or PHP (not required, but a plus)
• Strong problem-solving and automation architecture skills

About You:

• Comfortable working independently with clear specs
• Enjoys building systems that simplify workflows
• Proactive, detail-oriented, and able to suggest improvements
• Motivated by making a tangible impact and improving processes

Contra is looking for a skilled Frontend Engineer to build and enhance user-friendly, high-performance web applications. If you have experience with modern JavaScript frameworks, responsive design, and creating seamless user experiences, we’d love to hear from you!

Responsibilities:

• Develop and optimize scalable, responsive frontend applications.
• Collaborate with designers and backend developers to implement UI/UX designs.
• Write clean, maintainable, and well-documented code.
• Ensure cross-browser and mobile compatibility.
• Optimize performance for speed and scalability.
• Stay updated with the latest frontend technologies and best practices.

Requirements:

• Proven experience as a Frontend Engineer with a strong portfolio.
• Proficiency in JavaScript, TypeScript, React, Vue, or Angular.
• Strong understanding of HTML, CSS, and modern styling frameworks (Tailwind, SCSS, Styled Components, etc.).
• Experience with RESTful APIs, GraphQL, and state management (Redux, Zustand, Vuex, etc.).
• Knowledge of build tools (Webpack, Vite, Babel) and performance optimization techniques.
• Understanding of UI/UX principles and accessibility best practices.
• Strong problem-solving skills and ability to work independently.

Nice to Have:

• Experience with Next.js, Nuxt.js, or SvelteKit.
• Familiarity with testing frameworks (Jest, Cypress, Testing Library).
• Knowledge of CI/CD pipelines and deployment (Vercel, Netlify, AWS).
• Basic backend experience (Node.js, Firebase, or similar).

Dapper Labs is looking to hire a Frontend Software Engineering Intern to join their team. This is an internship position that can be done remotely anywhere in Canada, or the United States.

Fluence Labs is looking to hire a QA Engineer to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

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

About Nimbus

Nimbus is a research team that focuses on developing an Ethereum client and library. We believe that the largest deployment of Ethereum will potentially be on embedded systems and Nimbus is designed to perform well on embedded, mobile and generally resource-restricted devices.

Building the stack from the ground up, we’re translating the latest Ethereum research into practical, performant and reusable libraries to provide a fertile exploration ground for further R&D.

About Nomos

Nomos is a new blockchain designed from the ground up with the original cypherpunk ethos: decentralisation, censorship resistance, permissionless-ness and privacy. It will serve as the trustless agreements layer of the Logos stack. The forthcoming Nomos network will provide a common infrastructure layer upon which communities and aspiring network states can build social, governance, and financial services that uphold their community members’ fundamental rights and values.

The role & responsibilities:

You will join the Nimbus team but work closely with Nomos to consume and provide feedback on specifications, ensuring a deep understanding of both projects. You will:

• Develop a deep understanding of Nimbus and Nomos, including their architectures and designs.
• Consume specifications from Nomos and provide feedback where necessary, clarifying any ambiguities.
• Collaborate with the Nimbus team to identify potential issues or areas for improvement in the specifications.

Requirements:

• Strong understanding of blockchain technology and its underlying principles -> You have been in the blockchain industry for several years and are highly familiar with decentralised technology.
• You care about privacy and building protocols and applications that are truly decentralised, privacy-preserving and censorship-resistant.
• You have a technical background (Software Engineer or similar) & experience in documentation and specification.
• You are proactive and communicative; making things happen comes easily to you.

Bonus points:

• Experience working in an open-source organisation.
• You’ve used Nimbus Client or have worked in a privacy-focused project/organisation.

Hiring process:

• Intro call with our People Ops team
• Interview with Nimbus Team Lead
• Interview with Logos Program Lead

[The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline.]

Compensation:

The expected compensation for this role is 100k USD. We are happy to pay in any mix of fiat/crypto.

Coursera is hiring a remote Staff Software Engineer, Frontend. This is a full-time position that can be done remotely anywhere in India.

Coursera - We provide universal access to the world's best education.

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

Medium - A place to read and write big ideas and important stories.

Babylon is looking to hire a Senior IT Security Engineer to join their team. This is a full-time position that can be done remotely anywhere in the United Kingdom, Europe or Asia.

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

Oddball - We're a high-end boutique dev shop.

Sardine is looking to hire a Security Analyst to join their team. This is a full-time position that can be done remotely anywhere in Canada, or the United States.

"

About Stamp

Stamp is the first AI Native email client.

Every day, 4 billion people check their emails, spending 6+ hours in their inboxes. The number of emails we receive is increasing every year, and yet we’re stuck using the same workflows we did 20 years ago.

That’s why we built Stamp — it doesn’t just optimize your workflows, it automates them entirely. With Stamp, every single email you receive is automatically prioritized and filtered. Replies are automatically generated in your voice, with your context. And complex workflows are completed in seconds with Stamp Agent.

If you’re excited to build the 1000x version of a product already used by billions, we’d love to hear from you.

About the Role

As a senior frontend mobile engineer, you’ll be in the driver’s seat for core technical decisions regarding our mobile app UX, UI, and optimization, all while exercising more agency and product ownership than you’d have anywhere else.

You’ll have the opportunity to wear many hats while working to build a world class mobile application with an AI Native experience.

Ideally, you’re:

1. A builder: You’ve built several mobile frontends in the past and have worked with popular mobile frameworks (ReactNative + Expo is a plus)

About the Team

Archit (CEO & Founder) previously worked as a Software Engineer at Stripe, where he saved the company $1,000,000+ yearly by optimizing database storage. He also previously worked on Autonomous Vehicles at Apple and Robotic Surgery at Johnson & Johnson Robotics. Before that, he graduated from Cornell at age 20, where he led a team of 50 students building mobile apps with 10,000+ daily users. While still in high school, he built a PPE price tracker that scaled to 50,000 users during the height of the pandemic.

",

"

Who We Are

At DevCycle, we believe that no engineering team should fear deploying to Production. Managing the rollout of new features and services with feature flags should be as seamless as committing to source control. Our mission is to be the favourite feature flagging platform for developers.

Our small, passionate, and ambitious team strives to work on the right things at the right times through transparency, collaboration, and empathy. We build thoughtful tools and products that enhance developer’s workflow, challenging ourselves to push the boundaries of what’s possible to maximize efficiency, speed, cost, and value. If this resonates with you, read on.

Overview

We’re looking for a motivated and curious Full-Stack Engineer to join our growing team. This is a great opportunity for someone early in their career who’s excited about building real products, learning best practices, and working with modern technologies. You’ll collaborate closely with experienced engineers and product managers to ship features and improve our platform. If you’re passionate about learning, problem-solving, and building tools used by other developers, we’d love to hear from you.

Responsibilities

* Contribute to the design and implementation of our full-stack application.

Requirements

* 1–3+ years of experience in full-stack JavaScript/TypeScript development.

Nice to Have (Not Required)

* Previous experience working at a startup or small team.

Our Tech Stack

* Frontend & Backend : TypeScript, Node.js, Next.js, Nest.js, React

Work Environment

Preference is given to candidates in the Greater Toronto Area, as the team meets 1–2 times a week at our Toronto office. However, we are also open to fully remote work across Canada with the right candidate.

If you're passionate about pushing the boundaries of full-stack development and want to join a small and dynamic team, we'd love to hear from you.

",

Reddit is hiring a remote Senior Frontend Engineer, Top Of Funnel. This is a full-time position that can be done remotely anywhere in the United Kingdom.

Reddit - The front page of the internet.

About Nimbus

Nimbus is a research team that focuses on developing an Ethereum client and library. We believe that the largest deployment of Ethereum will potentially be on embedded systems and Nimbus is designed to perform well on embedded, mobile and generally resource-restricted devices.

Building the stack from the ground up, we’re translating the latest Ethereum research into practical, performant and reusable libraries to provide a fertile exploration ground for further R&D.

About Nomos

Nomos is a new blockchain designed from the ground up with the original cypherpunk ethos: decentralisation, censorship resistance, permissionless-ness and privacy. It will serve as the trustless agreements layer of the Logos stack. The forthcoming Nomos network will provide a common infrastructure layer upon which communities and aspiring network states can build social, governance, and financial services that uphold their community members’ fundamental rights and values.

The role & responsibilities:

You will join the Nimbus team but work closely with Nomos to consume and provide feedback on specifications, ensuring a deep understanding of both projects. You will:

• Develop a deep understanding of Nimbus and Nomos, including their architectures and designs.
• Consume specifications from Nomos and provide feedback where necessary, clarifying any ambiguities.
• Collaborate with the Nimbus team to identify potential issues or areas for improvement in the specifications.

Requirements:

• Strong understanding of blockchain technology and its underlying principles -> You have been in the blockchain industry for several years and are highly familiar with decentralised technology.
• You care about privacy and building protocols and applications that are truly decentralised, privacy-preserving and censorship-resistant.
• You have a technical background (Software Engineer or similar) & experience in documentation and specification.
• You are proactive and communicative; making things happen comes easily to you.

Bonus points:

• Experience working in an open-source organisation.
• You’ve used Nimbus Client or have worked in a privacy-focused project/organisation.

Hiring process:

• Intro call with our People Ops team
• Interview with Nimbus Team Lead
• Interview with Logos Program Lead

[The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline.]

Compensation:

The expected compensation for this role is 100k USD. We are happy to pay in any mix of fiat/crypto.

Chainlink Labs is looking to hire a Frontend Engineer, UX to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Za-What?

Zammad is an open-source helpdesk platform with big ambitions to be the best of its kind. With technical founder Martin Edenhofer at the helm, Zammad empowers teams around the world to provide the kind of next-level customer service that keeps people coming back.

The proof is in the pudding: with over 4,500 GitHub stars, 100,000 active installations and a community with steady, sustainable growth since its inception in 2016, Zammad has built a reputation of rock-solid reliability that our users depend on to ensure success at the frontlines of their business. You can’t buy that kind of trust.

Interested? Read on, and reach out if you’d like to have a hand in shaping the future of Zammad.

Open position for a Senior Full Stack Developer

Zammad is growing — and we’re looking for a Senior Full Stack Developer to join our agile, remote-first team. As we scale our helpdesk platform to the next level, we need someone who thrives in a fast-moving, collaborative environment and wants their code to make a real impact.

As a Senior Full Stack Developer, you will:

• Develop and maintain features across the full stack, ensuring a seamless experience from front to back.
• Enhance the user interface and experience of Zammad using Vue.js, crafting responsive, intuitive, and accessible web applications.
• Build and optimize back-end functionalities with Ruby on Rails, ensuring efficient, scalable, and maintainable code.
• Work closely with UX/UI designers to translate visual concepts into functional online experiences.
• Collaborate with product owners and back-end engineers to brainstorm and implement new features.
• Troubleshoot, debug, and upgrade existing software, addressing both front-end and back-end issues.
• Contribute high-quality code reviews and engage with the team for continuous improvement and knowledge sharing.

In short, your work will give life to the experience of using our platform.

Requirements

Our must-haves

• Demonstrated expertise in full stack development, with advanced skills in modern front-end frameworks (e.g. Vue.js, Svelte, React or Angular) paired with a robust proficiency in backend development using Ruby on Rails.
• A thorough understanding of web architecture, including proficiency with CSS, semantic HTML, and core JavaScript concepts.
• Hands-on experience working with REST APIs.
• Commitment to clean, maintainable, and well-documented code.
• A proactive mindset: you’re not just a coder, you’re a problem solver.
• Experience working in agile environments, including collaboration with Product Owners and SCRUM teams.
• A continuous learner's attitude, eagerly embracing both teaching and learning opportunities.
• Working in European Time Zone

Our wishlist

• Familiarity with GraphQL.
• A background in contributing to open-source products.
• Experience with TailwindCSS.
• Experience with TypeScript.

Show us what you’ve got

In addition to a résumé/CV and cover letter, be sure to include the following:

• Your scars and stories from past battles on the front-end, both lost and won.
• The strongest projects in your portfolio.
• The social and communication skills that will make you an effective addition to our remote-first team.

What’s in it for you?

Embrace the opportunity to make a significant impact at Zammad during a dynamic phase of growth. You'll be empowered to:

• Innovate within a flat hierarchy, where your ideas and initiative are highly valued.
• Become an integral part of an international, tight-knit team that thrives on collaboration and unity.
• Enjoy the flexibility and freedom of remote work, supported by management committed to helping you do your best work.

On top of that:

• As an agile, open-source company, our team is built around a flat hierarchy that gives you the latitude to pursue your own ideas.
• You will be part of a close-knit, international team with an uncanny sense of unity.
• Last but not least, you will enjoy the unbeatable freedom of remote work and flexible hours under management that does everything it can to support you in achieving your best work.

Salary and compensation

Benefits

🏖 Paid time off

🏔 Company retreats

📚 Learning budget

ActiveCampaign is hiring a remote Senior Software Engineer, Ruby on Rails. This is a full-time position that can be done remotely anywhere in the United States.

ActiveCampaign - Grow your business with customer experience automation.

As a Senior Rust Core Engineer at Raiku, you will spearhead our engineering efforts, driving the innovation and implementation of next-generation high-performance distributed systems. You will work with a highly proficient team of core engineers who have all contributed to foundational and novel network components.

We believe in hiring only exceptional iniduals who are highly motivated to work on complex core infrastructure challenges and are motivated by a coherent system design philosophy that will drive our industry forward. Expect frequent group discussions on architecture, new design specs and code reviews. We are all deeply committed to frequently shipping quality code.

About Raiku

Raiku is reimagining Solana’s consensus ecosystem by developing software that directly connects validators with purpose-built execution environments. We’re building institutional-grade infrastructure that delivers unprecedented performance, guaranteed transaction inclusion, and deterministic settlement for the next generation of internet-native applications. We unlock radical bandwidth and latency improvements by shifting Solana’s focus to state verification.

About the Engineering Team

As a team, we are building an entire platform written in Rust, which connects the L1 and L2s and allows us to create deeply complex scenarios and interactions with the running network. While your primary focus for this role is Rust and complex interactions with different components, you will likely also be involved in infrastructure (e.g., k8s), script writing, and supporting projects in other languages (e.g., Go). Working at every level of the stack is necessary to understand the big picture and how everything is wired together.

Responsibilities

• Highly motivated to contribute to our mission and be part of something bigger. Excited to work on projects that are ground-breaking and complex.
• Refactor, improve and lead software design implementation
• Communicate effectively with the team and document your code. It is also expected that founding engineers mentor less experienced engineers.
• Read and understand protocol specifications and be able to break them into issues and turn them into Rust code.
• Maintaining a large codebase with many components and keeping it well-designed, future-proofed, modular and highly performant
• Automate security testing processes and benchmarks, creating innovative tools and frameworks for continuously improving our systems.

What You’ll Bring:

• A bachelor’s or master’s degree in Computer Science, Engineering, or a related technical field, coupled with practical experience in blockchain systems.
• At least 3 years of experience in distributed systems, with a deep technical understanding of L1 and L2 architectures.
• Strong proficiency in Rust, with at least 2-3 years of Rust experience.
• Strongly emphasising writing performant and secure code.
• Demonstrated experience in designing, developing, and deploying scalable distributed systems.
• An analytical mindset with the ability to anticipate and mitigate emerging security threats, leveraging a comprehensive understanding of the blockchain landscape.

Preferred Qualifications

• Active open-source contributions in core protocol engineering (such as Firedancer, Reth, Lighthouse, Geth, …).
• Direct involvement in the Solana ecosystem, with contributions to Solana’s runtime, scheduler, or other core systems.
• Experience writing Solana Program Library (SPL) and Anchor or similar frameworks
• Active engagement with the blockchain security research community, evidenced by contributions to open-source projects, publications, or presentations at notable conferences.

Benefits

• Competitive remuneration packages based on iterative market research, including tokens
• Remote-first and self-initiating with flexible hours
• Work with team players who are genuinely excited about their impact and projects.
• A dynamic and collaborative work environment that fosters innovation and recognises inidual contributions to collective success
• Opportunities for professional growth and advancement within a rapidly growing technological frontier

We’re looking for a skilled No-Code Developer to help us design, build, and launch functional, responsive websites and automation workflows—without writing a single line of code. If you’re experienced with tools like Webflow, Airtable, and Zapier and have a strong eye for clean design and user experience, we’d love to work with you.

🚀 What You’ll Do

• Design and build websites using modern No-Code platforms
• Translate designs and concepts into fully functional sites
• Customize and optimize for responsiveness, performance, and usability
• Set up automations and integrations between apps (Zapier-style workflows)
• Collaborate closely with designers, PMs, and other stakeholders

✅ What We’re Looking For

• Proven experience as a No-Code Developer or similar role
• Strong grasp of UX/UI principles and responsive design
• Proficiency with No-Code platforms (e.g. Webflow, Softr, Framer)
• Ability to build clean, custom layouts with attention to detail
• Clear communication and collaborative mindset

✨ Bonus Skills

• Experience with Zapier, Airtable, Mailchimp, Go High Level, or similar tools
• Familiarity with Google Tag Manager, GA4, and other tracking setups
• Experience with eCommerce platforms like Shopify, WooCommerce, or Webflow eCommerce

• Develop, optimize, and maintain responsive websites and web apps
• Collaborate with designers to bring UI/UX concepts to life
• Write clean, scalable, and efficient code
• Ensure cross-browser and mobile compatibility
• Troubleshoot and debug performance issues
• Stay current with modern web development practices and tools

• Solid experience as a Web Developer with a strong portfolio
• Proficiency in JavaScript, and a modern front-end framework (React, Vue, or Angular)
• Experience with back-end technologies (Node.js, Python, PHP, etc.)
• Familiarity with databases (SQL, Firebase, MongoDB, etc.)
• Strong understanding of SEO and website performance optimization
• Comfortable working independently and delivering on deadlines

• Experience with headless CMSs, Webflow, or WordPress
• Familiarity with API integrations and third-party services
• Experience deploying to platforms like AWS, Vercel, or Netlify

Salary and compensation

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.

We have several Senior React Full-Stack positions available. Here are the general requirements for these roles.

Senior Ruby & React Position:

• 5+ years of software development experience
• 3+ years of commercial experience with React.js and Ruby and Ruby on Rails

Senior React & Node Position:

• 7+ years of software development experience.
• 4+ years of commercial experience with React.js and Node.js.
• 3+ years of experience with AWS and TypeScript are a must.
• Hands-on experience with Next.js is a must.

Senior React & Python Position:

• 4+ years of software development experience.
• 3+ years of commercial experience with React.js and Python.
• 3+ years of experience with AWS and TypeScript is a must.

Other requirements:

• 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, Swift, 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).

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

P.S. We work with developers from 50+ countries in different regions: Europe, LATAM, the U.S (if you are an owner of W-9 ben form), 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.

Quantitative Software Engineer

Who We Are

We are building a cutting-edge delta-neutral trading protocol that captures volatility and yield across BTC, ETH, and liquid altcoins through advanced basis trading, OTC liquidity strategies, and perpetual derivatives.

By combining market-neutral strategies and innovative hedging solutions, we provide unparalleled capital efficiency for institutional and advanced traders. Our team has deep experience from leading crypto protocols, traditional finance firms, and exchanges, backed by top-tier investors and partners. We are creating the next generation of yield-optimised trading infrastructure for the digital asset markets.

What We Are Building

We are pioneering a delta-neutral, volatility-driven trading infrastructure designed to enable scalable exposure to major digital assets while managing directional risk. Our protocol integrates:

• Delta-Neutral Strategies: Leveraging basis trades, funding rate arbitrage, and hedging for consistent, market-neutral yield.
• OTC Integration: Discounted asset acquisition for cost optimisation and arbitrage opportunities.
• Automated Hedging: Combining perpetual futures, options, and liquidity strategies to minimise risk.

This platform is tailored to institutions, treasuries, and sophisticated market participants looking for capital-efficient yield in the crypto space.

Who We Are Looking For

We are seeking a Quantitative Software Engineer who is excited to work at the intersection of financial innovation and frontier technology. You are a problem-solver who thrives in a fast-paced, zero-to-one environment and have a passion for designing sophisticated trading systems.

You will play a pivotal role in building and optimising the internal trading and arbitrage platform, enabling automated delta-neutral strategies that scale across both centralised exchanges and DeFi markets.

Role Summary

The Quantitative Software Engineer will develop and maintain a high-performance internal trading and arbitrage platform. You will design automated delta-neutral derivative strategies, integrate with smart contracts, and collaborate across teams to deliver robust trading solutions for real-world market conditions.

Key Responsibilities

• Develop and maintain an internal trading and arbitrage platform, focusing on real-time low-latency data capture, order execution, and risk monitoring. Design and implement automated delta-neutral derivative strategies across centralised venues and DeFi smart contracts. Establish secure and efficient connectivity with
• custody providers, centralised exchanges, and OTC desks for seamless trading operations. Optimise systems for
• latency, scalability, and high-performance execution.
• Collaborate with smart contract engineers to integrate delta-neutral strategies within DeFi ecosystems.
• Build internal monitoring tools to track risk, funding rates, and arbitrage opportunities
• in real-time. Work cross-functionally with other engineers and quantitative analysts to drive product innovation.

Qualifications

• Minimum 2 years’ professional experience at a reputable crypto trading firm, hedge fund, DeFi protocol, or digital asset exchange, with a proven track record of delivering high-quality trading systems in production environments.
• Expert-level proficiency in Python programming, with demonstrable experience in architecting, developing, and maintaining robust, high-performance trading systems. Experience with advanced Python libraries (e.g., NumPy, pandas, asyncio, websockets) and hands-on exposure to asynchronous, event-driven programming is required.
• Proficiency in Rust/C++/Go is highly desirable, including experience in building performance-critical components, low-latency systems, or integrating low latency modules with Python applications.
• Hands-on experience with market-making engines or quantitative trading platforms, including system design, order management, strategy implementation, and real-time risk management. Familiarity with order book dynamics, liquidity provisioning, and exchange connectivity (REST/WebSocket APIs, FIX protocol, etc.) is essential.
• Deep understanding of networking, CPU and memory models, and low-level programming concepts, including multi-threading, concurrency, and performance profiling. Experience with optimizing system resource usage and troubleshooting latency or throughput bottlenecks is required.
• Familiarity with Solidity and blockchain fundamentals, including smart contract development, security best practices, wallet integration, and decentralised infrastructure (e.g., EVM-compatible chains, Layer 2 scaling solutions, bridges).
• Demonstrated quantitative and analytical skills, including experience designing, backtesting, and optimizing quantitative trading strategies. Strong grasp of statistics, probability, and time-series analysis; proficiency in using simulation frameworks and data analysis tools.
• Strong understanding of financial markets and market microstructure, especially in the context of crypto assets, derivatives, and DeFi protocols.
• Experience working with large-scale data pipelines and real-time data processing, including ETL design, data validation, and integration with cloud-based or distributed systems (e.g., Kafka, Redis, TimescaleDB).
• Comfortable with DevOps practices, including containerization (Docker), CI/CD pipelines, infrastructure-as-code, and monitoring/alerting tools.
• Ability to work collaboratively in a remote-first, fast-paced environment, including excellent communication skills, self-motivation, and the capacity to manage multiple priorities and deliver under tight deadlines.
• Fluent in English, both written and spoken, with the ability to clearly explain complex technical concepts to both technical and non-technical stakeholders.
• Bachelor’s degree or higher in Computer Science, Mathematics, Engineering, Physics, or a related quantitative discipline is strongly preferred.

Our Engineering Stack

• Frontend: React, Next.js, Wagmi, Viem, TailwindCSS.
• Backend: Python, Solidity, SQL, GraphQL, Docker, AWS, Ethereum.

What We Offer

• Competitive Salary: Commensurate with experience.
• Globally remote working opportunities with flexible hours.
• An opportunity to build the next generation of yield-optimised trading infrastructure in crypto.
• Collaboration with a world-class team driving innovation in delta-neutral strategies and OTC trading.
• The chance to work on a protocol that bridges centralised and decentralised markets, delivering solutions for institutional-grade DeFi.

Why Join Us?

If you are passionate about building automated delta-neutral strategies, low-latency systems, and cutting-edge trading solutions, this is your opportunity to make a real impact. Join us as we transform how institutions capture volatility and yield in the crypto markets.

Apply now and help redefine the future of decentralised capital efficiency.

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.

We have several Senior React Full-Stack positions available. Here are the general requirements for these roles.

Senior Ruby & React Position:

• 5+ years of software development experience
• 3+ years of commercial experience with React.js and Ruby and Ruby on Rails

Senior React & Node Position:

• 7+ years of software development experience.
• 4+ years of commercial experience with React.js and Node.js.
• 3+ years of experience with AWS and TypeScript are a must.
• Hands-on experience with Next.js is a must.

Senior React & Python Position:

• 4+ years of software development experience.
• 3+ years of commercial experience with React.js and Python.
• 3+ years of experience with AWS and TypeScript is a must.

Other requirements:

• 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, Swift, 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).

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

P.S. We work with developers from 50+ countries in different regions: Europe, LATAM, the U.S (if you are an owner of W-9 ben form), 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.

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🚫 No politics at work

🎅 We hire old (and young)

Modern Treasury is hiring a remote Software Engineer - Payments. This is a full-time position that can be done remotely anywhere in the United States.

Modern Treasury - Payment operations solutions that automate the full cycle of money movement.

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 Lead AI/ML Engineer with deep experience designing and deploying real-world AI systems, with a focus in NLP, GenAI, and evaluation systems.

You’ll work directly with our CTO to architect AI infrastructure that powers intelligent, responsive onchain products. Because we’re building crypto-native interfaces with AI at the core, the ideal candidate is fluent in the modern GenAI stack, has opinions on model evaluation, and isn’t afraid to go deep into both product UX and system performance.

No formal crypto work experience is required, although general interest in crypto is a must.

Requirements:

• 4+ years of production AI/ML experience, with a focus on Python, HF Transformers, other NLP tools, and proper evaluations.
• Strong understanding of modern GenAI ecosystems: frontier models, open models, vector databases, embeddings, RAG, prompt orchestration, etc.
• Hands-on experience building evaluation frameworks and benchmarks for AI systems.
• Track record of deploying and maintaining production systems — ideally including non-cloud (local or edge) inference.
• You’re product-minded and comfortable navigating ambiguity across the AI stack.

Responsibilities

• Architect and implement complex multi-model AI systems — including retrieval-augmented generation (RAG), local model inference, and hybrid pipelines.
• Manage evaluations for open-ended AI tasks (e.g. classification, summarization, question-answering) with clear metrics and iterative feedback loops.
• Contribute to product strategy and help define how AI fits into core user flows.
• Own the full lifecycle: prototyping, productization, monitoring, and iteration.
• Work closely with design and product teams to ship user-facing AI features.
• Stay ahead of the curve on LLM advances, OSS tools, and model performance trends.

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

Peerspace is hiring a remote Principal Front End Engineer. This is a full-time position that can be done remotely anywhere in the United States.

Peerspace - Unique venues for meetings, events, photo & film shoots.

DuckDuckGo is hiring a remote Senior Software Engineer, Windows Desktop App. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

DuckDuckGo - Smarter search without the tracking.

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

Plaid - Develop the future of financial services.

Remote Executive Assistant / Software-Savvy Generalist

Full-Time | Remote | Work Directly With the Founder

I manage a portfolio of companies and investments across multiple industries, and I’m looking for a smart, highly capable, and tech-oriented Executive Assistant to help me stay organized, move faster, and operate at a high level.

This is not a traditional assistant role. I'm looking for someone who can act as my right hand — comfortable managing operations behind the scenes, running my inbox and calendar, coordinating with team members, and continually optimizing how I work across multiple businesses.

If you have a passion for software, systems, or design — even better. This role is ideal for someone with a blend of executive support skills, tech fluency, and sharp organizational instincts.

I encourage you to apply even if you don’t have every skill listed — what matters most is that you’re a fast learner who can keep up and grow with me.

Bonus Skills (Not Required, But Highly Valued)

If you’ve worked with any of the following, please mention it:

• Spreadsheets: Google Sheets, Excel (formulas, dashboards, reporting)

• Design tools: Canva, Revit, Blender, Figma

• Project/Construction tools: Primavera Cloud, permit tracking, scheduling software, Trello, Asana, Monday.com

• Coding: HTML, CSS, JavaScript, React, Python

• Marketing & Data: Google Ads, BI dashboards, CRM tools, data management

• No-code/automation: Notion, Airtable, Zapier

• AI Tools: ChatGPT, Claude, and others

What You’ll Do

• Manage and prioritize my inbox (drafting, responding, organizing)

• Own calendar management and cross-timezone scheduling

• Track deliverables and follow-ups across multiple businesses

• Handle task management and ensure effective delegation

• Summarize research, meetings, and business updates

• Create reports, slide decks, dashboards, simple no-code websites, and more

• Build or refine systems that improve workflows and visibility

• Coordinate with internal team members discreetly and efficiently

• Occasionally assist with personal admin, travel, or errands

You Are

• Hyper-organized, reliable, and resourceful

• A fast learner and clear communicator (especially in writing)

• Independent and proactive — you don’t wait to be told what to do

• Fluent in English (spoken and written)

• Comfortable with tech and eager to improve workflows

• Experienced working with founders, execs, or fast-moving teams

Logistics

• Remote – open to candidates worldwide (LATAM, Eastern Europe, SE Asia ideal)

• Full-time

• $1,000–$4,000/month depending on experience

• Flexible hours, with some overlap with EST preferred

• Long-term role with room to grow in scope and responsibility

Soft Skills

This role demands more than just execution — I’m looking for a partner who brings energy, intelligence, and collaboration into our work.

• Excellent English communication – able to explain complex ideas clearly in writing and speaking. Bonus if you speak multiple languages.

• Team player – collaborative, open-minded, and easy to work with.

• Proactive and innovative – takes initiative, solves problems creatively, and aims to deliver excellent work.

• Startup mindset – comfortable with shifting priorities, wearing many hats, and making fast decisions.

How to Apply

Please send the following to [email protected]:

• A short note introducing yourself and why this role excites you

• A link to your resume or LinkedIn

• Brief examples of past experience in a similar role

• (Optional but appreciated): A short video (max 2 minutes) introducing yourself

In addition, please answer the following four questions in your email or application:

1. If I gave you zero onboarding but full access, what’s the first thing you’d do in your first 24 hours?

2. What’s one weird or unique skill or obsession you have that you think would be useful in this role?

3. Write a short, professional reply to this message: “Hey, can you hop on a call today?” (You’re slammed and the request is vague.)

4. Send me a list of 3 tools or frameworks you'd use to manage my time, tasks, and communications. Briefly explain how you'd use them.

Salary and compensation

GitLab is hiring a remote Associate Support Engineer (EMEA). This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

GitLab - A single application for the entire DevOps lifecycle.

As a Senior Rust Core Engineer at Raiku, you will spearhead our engineering efforts, driving the innovation and implementation of next-generation high-performance distributed systems. You will work with a highly proficient team of core engineers who have all contributed to foundational and novel network components.

We believe in hiring only exceptional iniduals who are highly motivated to work on complex core infrastructure challenges and are motivated by a coherent system design philosophy that will drive our industry forward. Expect frequent group discussions on architecture, new design specs and code reviews. We are all deeply committed to frequently shipping quality code.

About Raiku

Raiku is reimagining Solana’s consensus ecosystem by developing software that directly connects validators with purpose-built execution environments. We’re building institutional-grade infrastructure that delivers unprecedented performance, guaranteed transaction inclusion, and deterministic settlement for the next generation of internet-native applications. We unlock radical bandwidth and latency improvements by shifting Solana’s focus to state verification.

About the Engineering Team

As a team, we are building an entire platform written in Rust, which connects the L1 and L2s and allows us to create deeply complex scenarios and interactions with the running network. While your primary focus for this role is Rust and complex interactions with different components, you will likely also be involved in infrastructure (e.g., k8s), script writing, and supporting projects in other languages (e.g., Go). Working at every level of the stack is necessary to understand the big picture and how everything is wired together.

Responsibilities

• Highly motivated to contribute to our mission and be part of something bigger. Excited to work on projects that are ground-breaking and complex
• Refactor, improve and lead software design implementation
• Communicate effectively with the team and document your code. It is also expected that founding engineers mentor less experienced engineers.
• Read and understand protocol specifications and be able to break them into issues and turn them into Rust code.
• Maintaining a large codebase with many components and keeping it well-designed, future-proofed, modular and highly performant
• Automate security testing processes and benchmarks, creating innovative tools and frameworks for continuously improving our systems.

What You’ll Bring:

• A bachelor’s or master’s degree in Computer Science, Engineering, or a related technical field, coupled with practical experience in blockchain systems.
• At least 3 years of experience in distributed systems, with a deep technical understanding of L1 and L2 architectures.
• Strong proficiency in Rust, with at least 2-3 years of Rust experience.
• Strongly emphasising writing performant and secure code.
• Demonstrated experience in designing, developing, and deploying scalable distributed systems.
• An analytical mindset with the ability to anticipate and mitigate emerging security threats, leveraging a comprehensive understanding of the blockchain landscape.

Preferred Qualifications

• Active open-source contributions in core protocol engineering (such as Firedancer, Reth, Lighthouse, Geth, …).
• Direct involvement in the Solana ecosystem, with contributions to Solana’s runtime, scheduler, or other core systems.
• Experience writing Solana Program Library (SPL) and Anchor or similar frameworks
• Active engagement with the blockchain security research community, evidenced by contributions to open-source projects, publications, or presentations at notable conferences.

Benefits

• Competitive remuneration packages based on iterative market research, including tokens
• Remote-first and self-initiating with flexible hours
• Work with team players who are genuinely excited about their impact and projects.
• A dynamic and collaborative work environment that fosters innovation and recognises inidual contributions to collective success
• Opportunities for professional growth and advancement within a rapidly growing technological frontier

About APF Company Limited

APF Company Limited is a Hong Kong headquartered blockchain ecosystem fund focused on strategic investments and active trading strategies in liquid cryptocurrency markets.

Overview

We’re seeking a talented Founding Quantitative Developer to join our Hong Kong team, where you’ll play a pivotal role in building and refining tools for cryptocurrency trading and blockchain integration. You’ll develop algorithms, integrate with decentralized finance (DeFi) platforms, and optimize systems for performance. This is an exciting opportunity to apply your technical expertise in a high-impact role, with rewards tied to the team’s success in a dynamic market.

Key Responsibilities

• Build and deploy trading algorithms to seize opportunities in cryptocurrency markets, ensuring scalability and efficiency.
• Integrate trading systems with DeFi protocols, developing secure smart contracts to enable automated strategies.
• Optimize low-latency infrastructure to support high-frequency trading in volatile market conditions. Monitor and enhance existing tools, proactively identifying areas for improvement to maintain a competitive edge.
• Collaborate with team members to design robust solutions, sharing insights to drive innovation. Keep pace with blockchain advancements, ensuring our systems align with evolving DeFi standards and protocols.

Qualifications

Education:

• Bachelor’s, Master’s, or Ph.D. in a quantitative field such as Computer Science, Mathematics, Physics, Engineering, or Economics from a reputable institution.

Work Experience:

• 2-5 years in a related field.

Technical Skills:

• Strong programming skills in Python (required) and C++ or similar languages (preferred) in Linux-based environments.
• Experience with data structures, algorithms, and writing efficient, well-documented code. Knowledge of Solidity for smart contract development and familiarity with blockchain concepts (e.g., web3, decentralized networks).
• Comfort with APIs (e.g., REST, WebSocket) and cryptographic techniques for secure integrations. Blockchain & DeFi:
• Understanding of DeFi ecosystems, including protocols like Uniswap, Aave, or similar platforms. Ability to develop and audit smart contracts for reliability and security.

Mindset & Attributes:

• Curiosity and enthusiasm for cryptocurrencies, trading, and blockchain technology.
• Sharp analytical skills with a knack for solving complex technical challenges.
• Ability to thrive under pressure, adapting quickly to shifting priorities.
• Collaborative spirit, eager to contribute ideas and learn from others.
• Strong sense of ownership, delivering high-quality work with precision.

Nice-to-Haves

• Experience trading cryptocurrencies or working with financial markets.
• Familiarity with high-frequency trading systems or market data analysis.
• Exposure to tools like SQL, bash, or cloud-based DevOps workflows.
• Contributions to open-source blockchain projects or a portfolio of DeFi-related work.

QuickNode is looking to hire a Senior Developer Advocate - Solana Ecosystem (EU) to join their team. This is a full-time position that can be done remotely anywhere in Portugal.

Noble is looking to hire a Front-End Developer to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

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

Peerspace - Unique venues for meetings, events, photo & film shoots.

Superside is hiring a remote Lead Frontend Engineer. This is a contract position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Superside - Hassle-free design for enterprise teams.

"

The Role

",

"

The Role

Hive is looking for a Head of Engineering to lead the engineering side of our Research and Development (RND) team through its next chapter of scale. Reporting into the CTO and working hand in hand with our VP Product, you’ll play a key role in evolving our team structure, strengthening our technical foundation, and driving delivery across multiple pods. We’re looking for a people-first leader with a proven track record of delivering real value to customers through great products. 

Our RND Team

RND at Hive consists of four pods – Product, Reliability/Platform, Integrations/Data, and Ads. Product, design, engineering and management resources are embedded across all of our pods. Our development philosophy is to build minimum viable products and deliver them as quickly as possible to market, then iterate based on real user feedback. Using this approach we’ve built a growing, profitable business - and the scale and complexity of the technical problems we’re solving is large and growing, too. 

What You’ll Do:

Grow and develop a high performing team

* Lead and support the Engineering Managers and inidual contributors across multiple pods.

Drive Engineering strategy and execution

* Partner with the CTO and VP Product to shape and execute on a long-term technology roadmap aligned with our business objectives.

Raise the bar on performance and reliability

* Own key KPIs across reliability, latency, scalability, and engineering velocity — and drive initiatives to improve them.

Be a key player in driving Hive's success:

* Collaborate deeply with product-facing teams (the rest of RND) and customer-facing teams (sales, customer success) to ensure engineering is aligned with customer needs and company goals.

Who you are

* You’ve led engineering teams for 5+ years and have spent at least a year in a Director (or equivalent) role. You’ve built, scaled, and evolved engineering orgs before — and carry those lessons with you.

How you show up

* You deliver and build credibility by doing. Your execution is reliable, your judgment is sound, and your standards are high. 

Technologies we use & teach

* Frontend: React, Typescript

Comp/Benefits Package:

* Meaningful salary and equity. You're rewarded based on impact.

About Hive

Hive is the industry-best marketing platform for event marketers. Our platform powers marketing for 1500+ of the most iconic event, festivals,  venues, promoters, and event-centric brands across North America.

We help our clients sell out their shows and make their events unforgettable - by helping them grow their customer base and personalizing and automating their email, SMS, and ad campaigns.

Hive integrates with 25+ partners like Ticketmaster and Shopify, ingesting rich customer data in real-time. With this data, event marketers can segment their audiences in powerful ways and send timely, customized messages to their customers. 

Hive was founded in a University of Waterloo computer lab and graduated from Y Combinator in 2014. Today, we’re a remote-first team spread across Canada and the US, building a product and a culture that values clarity, ownership, and real customer impact.

To learn more about our team, check out the About Us and Careers pages on our website.

",

"

We’re hiring a Senior Backend Engineer to join our team remotely in Canada. This role is open only to candidates currently residing in Canada with valid Canadian work authorization.

Hive is a fast-growing SaaS company offering marketing solutions to live event promoters across North America. Our Engineering Team builds and maintains the systems that empower our customers to do powerful things simply and intuitively. We operate with agility—shipping minimum viable products, deploying multiple times daily, and rapidly iterating based on customer feedback.

At Hive, we handle impressive technical scale: ingesting high-volume data in real-time from 20+ integrations (including Ticketmaster and Eventbrite), storing and querying billions of customer data points, and delivering over 200 million emails and SMS messages monthly to our clients' customers. Our technology stack includes Python, React, Redis, MongoDB, SQL, Elasticsearch, Clickhouse, and various AWS services.

As we continue to scale, we're seeking a Senior Backend Engineer to join our Reliability Team—the foundation that enables our product and engineering teams to deliver exceptional experiences while maintaining system performance, security, and cost efficiency.

The Role

As a Senior Backend Engineer for the Reliability Team at Hive, you'll be part of a team responsible for the performance, reliability, and maintainability of our systems. This role bridges infrastructure, operations, and application engineering to ensure our services are scalable, performant, secure, and cost-effective as we tackle increasingly complex technical challenges.

Tech Stack

AWS, Docker, Kubernetes, Karpenter, Terraform, Python, Django, Redis, MySQL, Clickhouse, MongoDB, Elasticsearch, DataDog, Sentry

What You'll Do

* Champion system observability improvements through implementation, maintenance, process refinement, and automation for business-critical services

What We're Looking For

* 7+ years of software engineering experience, with at least 5 years focused on reliability, infrastructure, or platform engineering

Bonus points if you have...

* Proven experience scaling complex AWS environments and optimizing performance across the full technology stack during periods of significant growth

What We Offer

* Meaningful salary and equity. You're rewarded based on impact

About Hive

Hive.co is a marketing platform for event marketers. We help brands personalize and automate their campaigns, using email and SMS, to empower them to sell out so they can focus on making their events unforgettable.

By integrating with ticketing partners like Ticketmaster and e-commerce partners like Shopify, we enable brands to access and act on all their customer data, so they can easily segment their list in thousands of ways, and send more customized, timely email campaigns that land in inboxes.

We started our company inside a University of Waterloo computer lab in early 2014, graduated from Y Combinator that summer (S14 batch) and have been growing ever since. Originally based in Kitchener, our team is now 100% remote and located all across Canada! We strive to provide an online work environment that allows team members to have a strong work life balance while still feeling connected to their team and Hive’s mission.

To learn more about our team check out our About Us page on our website:https://www.hive.co/company

",

"

We’re hiring a Senior Product Software Engineer to join our team remotely in Canada. This role is open only to candidates currently residing in Canada with valid Canadian work authorization.

Hive is launching a brand new Ads team, and we’re looking for a second engineer to help build it from the ground up! As one of the founding members, you’ll have an opportunity to shape not only the product, but the team.

Our Developer Department consists of three teams – Product, Reliability, and Integrations. As a member of the new Ads team, you will have the opportunity to influence how the broader engineering team operates, shaping collaboration, best practices, and standards while working closely with members of other teams. The Ads team will be instrumental in driving a new revenue stream and leading cross-functional efforts to bring this product line to life.

Our clients invest a significant chunk of their advertising budgets on platforms beyond Email and SMS, and we’re eager to help them streamline their efforts and make smarter, more effective decisions. If you're someone who gets fired up about building products from scratch and tackling challenging problems, we’d love to hear from you!

Our development philosophy is to build minimum viable products and deliver them as quickly as possible to market, then iterate based on real user feedback. Using this approach we’ve built a growing, profitable business and the scale of technical problems we’re solving is quickly growing too. 

What you’ll get up to:

* You rapidly build new features that users will love, continuously refining them based on feedback.

Past Projects:

Here is a look into just some of the projects we've worked on.

* We created an integration with Meta ads manager to allow clients to use our platform’s segmentation to create custom audiences on Meta.

Who you are:

* 5+ years of building highly performant software systems

Technologies we use & teach

* Frontend: React, Typescript

Compensation/Benefits Package

* Meaningful salary and equity. You're rewarded based on impact.

About Hive.co

Hive.co is a marketing platform for event marketers. We help brands personalize and automate their campaigns, using email and SMS, to empower them to sell out so they can focus on making their events unforgettable.

By integrating with ticketing partners like Ticketmaster and e-commerce partners like Shopify, we enable brands to access and act on all their customer data, so they can easily segment their list in thousands of ways, and send more customized, timely email campaigns that land in inboxes.

We started our company inside a University of Waterloo computer lab in early 2014, graduated from Y Combinator that summer (S14 batch) and have been growing ever since. Originally based in Kitchener, our team is now 100% remote and located all across Canada! We strive to provide an online work environment that allows team members to have a strong work life balance while still feeling connected to their team and Hive’s mission.

To learn more about our team check out our About Us page on our website:https://www.hive.co/company

",

vidIQ is hiring a remote Software Engineer. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

vidIQ - Chrome extension for YouTube video creators.

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

ClassDojo - Build wonderful classroom communities with parents and students.

About Us

Winna.com is an innovative crypto casino, pushing the boundaries of online gaming with cutting-edge technology and a seamless user experience. We are building a high-performance, scalable, and secure platform to serve a growing number of players worldwide. As we scale, we are looking for talented iniduals who want to shape the future of crypto gaming with us.

The Role

We are seeking a Back-End Developer to build and optimize the foundation of our gaming platform. You will work on API development, database management, and performance optimization while ensuring security and scalability. This role is ideal for someone who enjoys working on high-load systems, solving complex challenges, and driving innovation in a dynamic, fast-paced environment.

What We Are Looking For

• We need a developer with a strong technical background who is passionate about creating scalable and efficient backend systems.
• Experience in the iGaming industry is important—you should be familiar with the mechanics and challenges of online casinos, player transactions, and gaming operations.
• A strong understanding of mathematical logic and calculations is valuable, as you will be working with gaming logic and odds calculations.
• You should be comfortable working with real-time applications and high-load environments.

Key Responsibilities

• Design, develop, and maintain APIs for our casino platform
• Manage and optimize databases for scalability and efficiency
• Ensure high performance and low latency in a high-load environment
• Implement robust security measures to protect user data and transactions
• Develop and integrate new functionalities into our platform
• Work closely with the front-end, DevOps, and external teams to ensure seamless system integration
• Optimize and fine-tune gaming logic, mathematical models, and calculations to ensure accurate gameplay mechanics, as well as support real-time dashboard KPIs and data visualizations

Skills & Attributes

• Tech stack: Strong experience with Node.js, plus expertise in SQL, Redis, Web3, AWS is a plus
• Understanding of high-load systems and real-time data processing
• Experience designing and optimizing database structures
• Knowledge of cryptographic principles and security best practices
• Strong problem-solving skills and a passion for mathematical logic and calculations
• Familiarity with iGaming industry mechanics is a must—understanding game engines, odds calculations, and player transaction flows
• Ability to work independently and collaboratively with a distributed team
• Experience integrating blockchain/Web3 technologies is beneficial

Why Winna?

• Work on an innovative crypto gaming platform with cutting-edge technology
• The opportunity to shape the core architecture of a fast-growing casino platform
• A dynamic, agile work environment with direct impact on the product
• Flexible work options: Remote, Hybrid, or On-site in Berlin
• A talented, passionate team with a startup mindset and flat hierarchies
• Competitive compensation based on experience and expertise

How to Apply

If you’re excited about this opportunity, we’d love to hear from you!

Send us your GitHub, CV, or a short intro about your experience.

We look forward to meeting you!

"

As an AI Engineer at Eloquent AI, you will be at the forefront of building, deploying, and optimizing enterprise-grade AI agents that handle high-stakes conversations. You’ll work directly with software engineers, deep learning experts and AI researchers to design intelligent agents that understand, take action, and deliver real business impact.

This role requires a mix of software development, AI integration, and problem-solving skills, with the ability to customize, optimize, and scale AI models for real-world enterprise applications. If you're passionate about LLMs, conversational AI, and solving last-mile AI adoption challenges, this role is for you.

You will:

* Build, deploy, and optimize AI agents that engage in enterprise-grade conversations.

Requirements:

* 3+ years of experience in software development or AI engineering in a production environment.

Bonus Points If…

* You have experience with prompt engineering, parameter-efficient fine-tuning (PEFT), retrieval-augmented generation (RAG), reinforcement learning for LLMs.

",

The Opportunity

As a Frontend Engineer on the Nascent engineering team, you will play a critical role in designing and building the user interfaces that power our trading platform. From creating elegant, high-performance UI in React to collaborating across the stack, you’ll help shape products that enable our team to move fast and operate at their best. You’ll contribute to a lean, agile development team—owning components end to end, bringing clarity to ambiguous problems, and pushing the boundaries of what’s possible through creative solutions and sharp execution.

You will thrive in this role if you’re a resourceful builder who loves solving complex challenges and turning ideas into intuitive, high-impact interfaces. You enjoy connecting the dots between teams, and you move fluidly between starting bold new projects and refining existing ones. You’re excited by the future of crypto and trading, supercharge your workflows with LLM tools, and care deeply about both speed and quality. If you’re curious, adaptable, and ready to help shape the next phase of our platform, we’d love to work with you.

Responsibilities

• Design and build world-class UI for the next phase of our trading platform, enabling our team to do their best work
• Ensure resilience and stability through quality code reviews, unit, regression and user acceptance testing
• Be an integral contributor to a lean agile development team, fostering a culture of continuous improvement.
• Take full ownership of multiple components including design, implementation, and maintenance
• Operate independently and in unison with a team to deliver code updates
• Contribute creative ideas and novel approaches to product and engineering challenges, pushing the boundaries of what’s possible.
• Bring clarity and structure to ambiguous problems, identifying key requirements and proposing actionable solutions.

About you

• You crave autonomy and agency to deliver against a shared vision and find real joy in providing solutions to complex problems.
• You enjoy connecting the dots between teams, valuing strong communication and collaboration.
• You are curious about the future of crypto, trading and the financial world as a whole.
• You love using LLM tools in your daily workflows.
• You are as excited by starting a project as completing, maintaining, and continually optimizing it.
• You are resourceful and can toe the line between moving fast and breaking things and moving methodically to get things right the first time.
• You are extremely agile and have a strong ability to adapt quickly to evolving requirements.
• You are an avid learner and always keeping on top of the latest technologies.

Preferred experience

• 2-5 years of experience in Front-end development, ideally using React, Angular or VueJS. Bonus if you have experience with and/or interest in learning Rust.
• Previous experience in creating visually appealing and intuitive user interfaces, ideally for complex financial applications.
• UX Design Skills with experience in tooling such as InVision, Figma, Balsamiq.
• Have built trading and/or financial applications in the past (through experience, hobby or project work).

About Nascent…

Founded in 2020, Nascent exists to build, expand, and capture opportunity, in open markets and permissionless technologies. Building from a base of permanent capital, we deploy assets across a range of both liquid and long-term strategies that ensure we are among the most active users of the open financial system we are helping to build. We’ve made venture investments in 100+ early-stage teams that we believe have the potential to create substantive change, expand boundaries, and find new horizons. We are consistently on the hunt for the most competitive and curious minds exploring the edges of the crypto ecosystem and leverage our hyper flexible structure to accelerate ideas into fully deployed strategies.

Our Team & Culture

At Nascent, we are an interdisciplinary team of investors, builders & creators, capable of achieving more together than we can as iniduals. We offer the opportunity to contribute to building the future global economic system with a world-class team and culture that pairs the freedom to explore, experiment & play with a competitive drive to win. We invest in our people by providing the autonomy to build, coupled with accountability & honest feedback to help learn, grow, perform & win. Our distributed team understands the value of in-person time—we host two team retreats per year and encourage team members to come together for more frequent in-person work.

Principles that drive our team & work

• Compete to win
• Explore, experiment, play
• Always be building
• Seek and speak truth
• Own your shit.

What We Offer

At Nascent, we offer a competitive total compensation package heavily weighted toward bonus, ensuring that when we perform at our best and the firm wins we all win.

• The opportunity to learn, experiment and build in an entrepreneurial environment
• Remote and distributed working environment
• Comprehensive health benefits package including dental, vision, and life
• 16 weeks fully paid parental leave & supported return to work
• Home office setup and stipend or coworking space and wellness stipend
• Retirement plan matching contributions
• Open vacation policy as well as flexible work hours and location
• Team activities and bi-annual in-person team retreats

We are an equal opportunity employer and celebrate ersity and differences of perspectives. We do not discriminate on the basis of any status, inclusive of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

👋 GM

We are OpenCover — our mission is to keep the world safe onchain.

OpenCover operates at the intersection of blockchain security and insurance. Working in tandem with leading industry players, we protect iniduals, businesses and institutions against onchain risks such as malicious transactions, smart contract exploits and depegs.

Founded by Y Combinator alums, our team is backed by Tier 1 investors including Lloyd’s of London Lab.

Want to join a high-performance, high-integrity team taking onchain safety to the next level? Read on.

🚀 Your role

You would join the founding team to develop core backend infrastructure working closely with our CTO. Your role would focus on expanding the first transaction security layer to insure billions in value. The work involves collaborating with top protocols and industry players to prevent incidents like the ByBit hack from ever happening again.

Areas you’ll work on

• Soft auditing and semantic modelling of leading protocol designs and functions.
• Designing, implementing and backtesting transaction validation checks.
• Developing asset pricing and transaction risk models.
• Tracking exposure and other insurance metrics in real-time.
• Iterating and expanding our API based on customer feedback.
• Staying up to date with industry trends including EIPs and security incidents.

You’d be a great fit if

• You’re a generalist who quickly embraces new technologies and challenges with a passion for building products from the ground up in a collaborative, tight-knit team.
• You go all out to use your knowledge and work well autonomously but know when to reach out for support.
• You have 5+ years of full-time experience developing and shipping backend services with Node.js and TypeScript.
• You’ve designed, implemented and/or audited smart contracts on EVM-compatible chains and have hands-on experience using DeFi.
• You’re familiar with PostgreSQL, messaging brokers, AWS/GCP, Docker, Bash and Linux.
• You are constantly improving your tech stack and use AI tools to accelerate development.

🙌 Our offer

• Put your dent in the universe: build products for and with some of the largest players across Web3 and TradFi.
• Directly impact company trajectory and play a key role in driving onchain adoption.
• Work IRL with the team at Lloyd’s of London 1–5 days a week— your choice!
• Flexible hours with 28 days of paid holiday plus company closure days.
• Competitive compensation based on experience + 0.1–0.5% equity.
• The equipment you need to do your best work + $1,000 for well-being and personal development each year.
• Company-paid travel to events and conferences, if that’s your thing!

Ready to apply?

Head to opencover.com/apply/bbe and get shortlisted in 10 minutes or less.

"

At Oway, we're redefining how businesses move freight by pioneering a rideshare model for shipping pallets. We’re looking for exceptional engineering interns who thrive on autonomy, speed, and impact. You’ll have direct involvement in building and scaling key systems—like real-time pricing models, intelligent vehicle routing, user engagement tools, and high-volume payment infrastructure.

This isn’t a checkbox internship. We want people who build fast, think creatively, and are excited to help shape a product that’s transforming commerce in America. If you're a strong inidual contributor who can run with complex tasks and you love shipping code that impacts how physical businesses work with each other—come work with us.

Even if you don’t match every bullet on a traditional job description, we still want to hear from you.

",

Clearpool is the leading decentralized finance credit marketplace, preparing to launch Ozean — the blockchain for RWA yield. Clearpool’s permissionless protocol enables institutions to raise unsecured liquidity directly from DeFi markets, while a separate fully permissioned platform, Clearpool Prime, further meets the compliance needs for wholesale borrowing and lending of digital assets by institutional market participants.

Launched in March 2022, Clearpool has originated over US$620 million in loans with a growing user base spanning both crypto and TradFi institutions such as Wintermute, Jane Street, Fasanara Digital, CoinShares, and others. The protocol launched on the Ethereum mainnet in March 2022, followed by the expansions to Polygon PoS, Polygon zkEVM, Optimism, Mantle Network, Flare Network, Base and Arbitrum. Clearpool is currently building Ozean, the first blockchain for RWA yield built on and supported by Optimism.

More info

Job Overview:

We are seeking a highly skilled and experienced Senior Smart contract / Rollup Engineering Lead to join our dynamic team. The ideal candidate will have a strong background in Solidity/EVM Smart contracts with a keen interest in the evolving Web3 and RWA landscape for DeFi. This role primarily involves creating, designing, and implementing smart contracts, leading and managing the rollup infrastructure (Layerzero OFT, Hyperlane, Optimism L2 stack).

Key Responsibilities:

• Must be open to working
• Has contracts on the Ethereum/EVM that have handled non-trivial amounts of funds
• Develop libraries and code to interact with smart contracts and Node backends via NodeJS
• Writing, testing, and enhancing Solidity/EVM smart contracts
• Experience with foundry and testing with Tenderly
• Proven experience with Solidity security audits & working with auditors

Qualifications:

• Fluent in English communication
• Crypto Native
• Comfortable working in the fast pace and volatility of early-stage startups
• Strong understanding of the L2 Rollups and its ecosystem, upcoming technology, and application-specific blockchains
• Excellent problem-solving skills and attention to detail
• Strong communication and teamwork skills
• 4-5+ years of hands-on experience in backend and smart contract development
• Experience with building different DeFi products is ideal

Extras:

• Past experience in contributing to or maintaining open-source projects

Pay/Tokens:

• Salary Range $100,000-$120,000 USD annually
• Competitive token incentives plan
• Paid in USD stables. Payment and tokens are to be discussed based on qualifications, experience.

Role

• Setup, maintain and monitor fleets of blockchain nodes for Nirvana’s global customer base.
• Build and maintain scaleable and flexible automations for running blockchain nodes and internal monitoring services.
• Set and maintain the best-in-class infrastructure practices.
• Collaborate with cross-functional teams to align technical solutions with business goals and client needs.

Requirements

• Fluent in English
• In a time zone between PT to ET (UTC-8 to UTC-5)
• Proficient in scripting (i.e. Bash) and automation frameworks (e.g. Ansible, Terraform, Puppet, Chef)
• 4+ years of proven experience in DevOps or Site Reliability Engineering roles.
• Experience managing and optimizing bare-metal servers.
• At least 1 year of professional experience in creating and maintaining blockchain RPC nodes (e.g. Ethereum, Arbitrum, Solana etc.)
• Knowledgeable in deploying services reliably using tools like GitHub Actions, CircleCI, TravisCI, or Jenkins.
• Proficient with monitoring and logging tools (e.g, Prometheus, Grafana etc).
• Experience with Git-based systems for code and configuration management.
• Knowledge of various blockchain protocols and standards.
• Awareness of cybersecurity practices relevant to blockchain and distributed systems.

Nice to have

• Experience in creating automation tasks and internal tooling using Golang.
• Active contributions to relevant open source blockchain projects.
• Certifications for cloud providers, Kubernetes, or security certifications.
• Familiarity with a variety of blockchain environments.
• 1 year of experience in a technical leadership role.