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

Axios - Smart brevity worthy of people's time, attention and trust.

Tokemak is looking to hire a Web3 Junior Frontend Engineer to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

About the Codex Student Program

The Codex Student Program (CSP) is aimed at Bachelor, Master’s or PhD students looking to gain experience and do research and development in one of the domains of interest related to the Codex project. The grant is intended to help students gain visibility into their field of interest while also allowing them to learn about standard research and development practices that should be beneficial for their continuing careers.

Responsibilities

• Create engaging developer-focused content (blog posts, tutorials, social media)
• Build simple demonstrations and code examples showcasing our technology
• Assist with content strategy and identify topics that resonate with developers
• Help measure and track the impact of content initiatives
• Collaborate with product and engineering teams

Requirements

• Currently pursuing a degree in Computer Science or related field
• Basic coding experience, particularly in technologies we use in Codex
• Strong written and verbal communication skills
• Curious about decentralized technologies and storage solutions
• Ability to explain technical concepts clearly
• Self-motivated and comfortable working in an async, fast-paced environment

The Grant

The CSP is very flexible and adapts to different levels of experience and various lengths. The following numbers are just indicative, as the final stipend might slightly change depending on the student experience and to adapt to differing regions’ costs. For an officially enrolled PhD student, the CSP offers a stipend in the range of $2,000/month (full-time equivalent).

In addition, the CSP may offer mobility grants to attend meetings and related conferences within the scope of the internship’s research field.

Application

To submit your application, please fill out this form providing the following documents:

• Up-to-date Curriculum Vitae
• A cover letter expressing your research interests
• Proof of enrollment in your university
• Reference letter from one of your university professors
• Applications will be evaluated a few weeks after submission. Students passing the initial evaluation will be contacted to pass a short interview.

The fees, duration of the agreement, and deliverables shall be reviewed on a case-by-case basis and as set out in the contractor agreement to be signed by the student. Please consider that once you have signed the agreement, you must comply with the local regulations for the provision of the services that are applicable in your country of residence or nationality.

About Us

Re7 Capital is a London-based cryptoasset investment firm, leveraging our deep crypto network and proprietary data infrastructure to drive investment decisions across various DeFi and alpha strategies. Through Re7 Labs, we also collaborate with leading projects and blockchains to design DeFi ecosystems, provide on-chain risk curation, and deliver vault management services.

Our team combines expertise in investment management, data science, and crypto. To support our continued growth, we are seeking a motivated Full Stack Web Developer to join our engineering team. Reporting directly to the Head of Technology, you will take full ownership of our dApps, used to interact with our vault smart contracts.

Responsibilities

• Develop and maintain responsive, user-friendly front-end interfaces using React, Next.js, Vue or similar frameworks.
• Integrate EVM and non-EVM smart contracts using libraries like Ethers.js, Web3.js, Viem, Starknet.js and wallet connectors such as ConnectKit and wagmi.
• Support wallet integrations including MetaMask, Argent X, and Braavos.
• Design and implement scalable back-end services and APIs using Node.js, Express, and related technologies.
• Collaborate with blockchain engineers to interact with smart contracts and on-chain data.
• Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data.
• Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring.
• Set up and manage CI/CD pipelines using GitHub Actions or similar tools to automate testing and deployment workflows.
• Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure.
• Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management.
• Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments.
• Work closely with designers, PMs, and cross-functional teams to define and deliver new DeFi features and enhancements.
• Implement and maintain interactive UI elements and animations using modern HTML/CSS (including transitions, keyframes, and responsive styling) within PHP-based web applications.

Requirements

• Proficiency in JavaScript/TypeScript and PHP.
• 5+ years of experience in web development, including 3+ years in dApp development.
• Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts.
• Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows.
• Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding of environment config, auto-scaling, and CloudWatch logging.
• Proficient in setting up CI/CD pipelines using GitHub Actions (or similar tools), including artifact packaging and automated deployment.
• Working knowledge of CloudFront, CDN behavior, cache invalidation, and AWS Certificate Manager.
• Familiarity with IAM roles, security groups, VPC setup, and cloud infrastructure security best practices.
• Experience with front-end frameworks (React, Next.js, Vue, etc.)
• Comfortable working in Linux environments and using Git for version control.
• Understanding of DeFi concepts and major protocols (e.g., Uniswap, Aave, Curve).
• Awareness of and ability to support Whisk infrastructure and security requirements.
• Basic knowledge of HTML5, CSS3, and animation techniques (e.g., transitions, keyframes, scroll-triggered effects), with the ability to integrate them into PHP-rendered views or templating engines.

Benefits

• A dynamic, collaborative, and highly technical work environment.
• Opportunities for professional growth in a rapidly evolving industry.
• Remote-first setup with regular opportunities to meet the team in person.
• Competitive compensation package.

Application Process

Please submit the following:

• Your resume
• A cover letter explaining your interest in the role
• Your response to the following technical challenge:
• Challenge: Describe a high-level architecture and solution for a dApp that supports both EVM and non-EVM wallets (e.g., MetaMask and Braavos). Include considerations for wallet detection, abstraction, and secure transaction signing.

Circle is looking to hire a Lead Analyst, Third Party Security to join their team. This is a full-time position that can be done remotely anywhere in the United States.

Espresso Systems is looking to hire a Developer Relations Lead to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

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

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

GitLab - A single application for the entire DevOps lifecycle.

About the Codex Student Program

The Codex Student Program (CSP) is aimed at Bachelor, Master’s or PhD students looking to gain experience and do research and development in one of the domains of interest related to the Codex project. The grant is intended to help students gain visibility into their field of interest while also allowing them to learn about standard research and development practices that should be beneficial for their continuing careers.

Responsibilities

• Help increase awareness of Codex & its tech stack
• Create sample applications and code examples
• Support developers through forums, documentation, and direct engagement
• Gather feedback from the developer community to improve our platform
• Represent our project at virtual events, hackathons or university gatherings
• Seek opportunities to organise Codex developer meetups and coding challenges

Requirements

• Currently pursuing a degree in Computer Science or related field
• Comfortable with public speaking and technical demonstrations
• Basic understanding of decentralized technologies
• Enthusiasm for engaging with developer communities
• Strong problem-solving skills
• Interest in building your personal brand within the tech ecosystem

The Grant

The CSP is very flexible and adapts to different levels of experience and various lengths. The following numbers are just indicative, as the final stipend might slightly change depending on the student experience and to adapt to differing regions’ costs. For an officially enrolled PhD student, the CSP offers a stipend in the range of $2,000/month (full-time equivalent).

In addition, the CSP may offer mobility grants to attend meetings and related conferences within the scope of the internship’s research field.

Application

To submit your application, please fill out this form providing the following documents:

• Up-to-date Curriculum Vitae
• A cover letter expressing your research interests
• Proof of enrollment in your university
• Reference letter from one of your university professors
• Applications will be evaluated a few weeks after submission. Students passing the initial evaluation will be contacted to pass a short interview.

The fees, duration of the agreement, and deliverables shall be reviewed on a case-by-case basis and as set out in the contractor agreement to be signed by the student. Please consider that once you have signed the agreement, you must comply with the local regulations for the provision of the services that are applicable in your country of residence or nationality.

Mural is hiring a remote Senior Software Engineer, eCommerce. This is a full-time position that can be done remotely anywhere in Argentina.

Mural - Online brainstorming, synthesis and collaboration.

Serokell is a fast-growing, fully remote software development company that works on innovative solutions for complex problems. We’re packed full of adventurous, curious, and inclusive folks who want to build cutting-edge software with modern technologies like functional programming.

This position is open now with a July start. This is a project-based hire with the option to extend if it is a good match. Submit your CV and we’ll reach out promptly.

We’re seeking a middle to senior level Solidity Developer to join a team of fierce and fun Serokellers.

Hiring Process Overview: We invite candidates to the HR screening as the first step. Next, we conduct a technical interview with those whose profiles align with our requirements. Successful candidates will receive an offer.

Requirements:

• Fluency with Ethereum or another EVM-based blockchain ecosystem
• 2+ years in software development
• 1+ years experience writing, testing, and deploying Solidity contracts
• Hands-on experience with Hardhat, Foundry, Truffle, or Remix for development, testing, and debugging, including transaction submission, data retrieval, and key management
• Understanding of security issues and best practices for Ethereum and De-Fi applications
• Knowledge of popular token standards such as ERC-20, ERC-721, and ERC-1155
• Experience developing and integrating decentralized applications, both backend and frontend
• Basic understanding of cryptography primitives: public/private keys, signing, encryption, hashing
• Knowledge of fundamental algorithms and data structures like hash tables, binary search trees, DFS, quicksort
• Strong coding practices, including clean code structure, use of git, pull requests, and code review
• Fluent English, strong communication and collaboration skills
• Comfortable with daily stand-ups and asynchronous updates
• Self-driven, proactive, teamwork-oriented, curious and inclusive mindset
• Full-time commitment, around 140–160 hours per month
• Comfortable overlapping with team time zones from UTC 0 to UTC -8

It will be a significant plus if you have:

• Knowledge of TypeScript, Haskell, Rust, or OCaml
• Experience conducting security audits and identifying vulnerabilities
• Understanding of computer networks, HTTP, TCP/IP stack, and data synchronization models used in modern service APIs
• Familiarity with build/deploy automation tools and CI/CD systems such as Docker, Nix, Kubernetes

Responsibilities:

• Create and implement secure and efficient Solidity contracts, ensuring scalability, reliability, and maintainability
• Integrate contracts with EVM blockchain networks, often involving backend or frontend work
• Review and audit code
• Develop and execute unit tests, integration tests, and end-to-end tests
• Write detailed documentation for code, including design specs, user guides, and API documentation
• Stay updated on the latest developments in Solidity, Ethereum, and EVM-related technologies, cryptographic methods, and relevant programming languages
• Optimize code performance and gas efficiency
• Implement and enforce security best practices to protect contracts from common vulnerabilities
• Provide ongoing support and maintenance for deployed applications, addressing user-reported issues and bugs

We offer:

• Competitive salary.
• Engaging international projects.
• Participation in leading global conferences.
• International and multicultural teams.
• Fully remote work with flexible hours.
• Ability to take time off as needed.
• Investment in career and professional growth, with potential for wage increases.
• Mentoring and training programs.
• Opportunity to contribute to a leading functional programming blog.
• Therapy sessions for well-being support.

By joining Serokell, you’ll become part of a warm community of ingenious engineers, computer scientists, designers, marketing experts, and other inventive minds. You’ll work on ambitious projects building the next generation of computer software, explore creative initiatives unhindered by bureaucracy, and enjoy our vibrant Slack channels—ranging from #music to #philosophyandtears (did we mention the massive custom emoji set?).

Stay in the loop.

Follow @raikucom on Twitter for product updates, engineering deep es, and a closer look at how we’re building the future of blockspace.

About Raiku

Raiku is reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on Solana, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance—solving the foundational failures that cause transactions to miss, trades to revert, and systems to collapse under pressure. By placing high-performance compute close to where transactions happen and coordinating execution through our advanced scheduling engine, Raiku empowers developers to build scalable, high-performance applications—and gives institutions the reliability and control they demand. We believe financial infrastructure should behave like physics: fast, reliable, and predictable—every time, without exception.

Research Engineer (Solana/Rust)

We’re seeking a passionate Research Engineer to drive protocol-level innovation on Solana. As the ideal candidate, you’ll combine deep technical expertise with scientific curiosity to:

• Lead technical discovery initiatives focused on Solana’s runtime, consensus, scheduler, and networking layers
• Conduct performance modeling and develop validator-centric architecture solutions
• Identify and address complex edge cases in transaction handling across production environments
• Translate research findings into actionable protocol design improvements

You’ll collaborate directly with our CEO, CTO (your manager), protocol architects, and key Solana ecosystem contributors to shape validator economics and transaction lifecycle guarantees across the Raiku stack.

Key Responsibilities

• Analyze and model Solana’s core architecture — deeply understand and document Solana’s runtime, scheduler, consensus, Turbine/Gossip, and transaction pipeline, with emphasis on edge cases under network stress or validator misbehavior.
• Lead internal research on validator economics and incentive alignment — explore impacts of Raiku’s slot marketplace, Ahead-of-Time (AOT) block auctions, and inclusion guarantees on validator profitability and slashing risks (e.g. under SIMDs 0096, 0123, 0212, 0228).
• Design bandwidth and blockspace pricing models — define and simulate pricing mechanisms for Raiku’s primary and secondary slot markets, ensuring validator rewards and application inclusion needs are economically aligned.
• Prototype system-level experiments across the Raiku and Solana stack — evaluate performance, liveness, and correctness when integrating Raiku’s ackermann-node and sidecar into Solana validator clients (e.g. Agave, Jito).
• Develop proofs-of-concept for transaction lifecycle primitives — such as pre-confirmations, slot reservations, and proof streaming for large bundled state transitions.
• Research and benchmark global account models — test interaction models across multiple VMs (e.g. SVM, EVM, MOVE) and assess state determinism and composability in high-throughput environments.
• Contribute to the design of Raiku’s protocol-level mechanisms — including builder commitments, proposer formats, MEV mitigation strategies, and slot slashing logic under failure modes.
• Author technical deep es, simulations, and RFCs — serve as a knowledge base for both internal and external stakeholders across Raiku’s validator, capital, and app layers along with wider engineering and marketing teams.
• Collaborate with external researchers and validators — especially those running testnet sidecars or participating in bandwidth resale to ensure safe and performant mainnet integration.

Preferred Qualifications

• Technical background with strong system-level experience
• Proven open-source engineering background, evidenced by contributions to major blockchain or distributed systems repositories — ideally within the Solana ecosystem.
• Involvement in protocol research, MEV, performance tuning, or client implementations
• Experience designing proofs-of-concept for novel execution or slot-inclusion logic
• Familiarity with zero-knowledge proof systems and state settlement patterns
• Active presence in relevant research circles, Discords, or open-source forums

What We’re Looking For

• 3+ years of experience working with Rust in production (preferably in core systems or blockchain contexts)
• Deep familiarity with Solana’s source code and protocol-level architecture (runtime, scheduler, consensus, networking)
• Demonstrated ability to reason through complex distributed systems
• Experience modeling and explaining performance bottlenecks in real-world validators
• Ability to read protocol proposals and specs and convert them into actionables (e.g. implementation paths, test harnesses, edge case coverage)
• A deep design philosophy focused on deterministic execution and reliable system behavior
• Strong communication skills and clarity in technical writing

What We Offer

• A chance to join a category-defining protocol team pushing the frontier of Solana infrastructure
• Token upside and a key role in shaping Raiku’s ecosystem footprint
• Remote-first team with async workflows, a high ownership culture, and deep technical curiosity
• Competitive salary, token allocation, and performance-based bonuses
• Budget for travel, ecosystem events, and home office setup

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

Airtable - Build powerful work apps, without coding.

Gnosis is looking to hire a Summer Internship (Ethereum Ecosystem) to join their team. This is an internship position that can be done remotely anywhere in EU or India time zone +/- 3 hours.

🚀 About Orga AI

Orga AI, headquartered in Palma de Mallorca, builds real-time AI systems that see, listen, and speak. Our mission is to enable people to interact with technology in a fluid and natural way through the multimodality of AI.

🛠️ Responsibilities

• Design and optimize Python 3.11 / FastAPI / asyncio-based APIs and microservices powering our SDK and TTS engine.

• Integrate and scale audio-video components (WebRTC, WebSockets) to maintain latency below 300 ms.

• Implement secure and scalable architectures in AWS EKS + Fargate, using IaC (Terraform) and CI/CD (GitHub Actions).

• Ensure observability with Prometheus/Grafana and maintain defined SLOs.

• Collaborate with the MERN and DevOps teams for efficient continuous deployments.

• Mentor junior team members and participate in code reviews with a focus on best practices.

🎯 Requirements

• 5+ years of experience building production-grade backends with Python.

• Expertise in concurrency and high-performance systems (asyncio, multiprocessing, profiling).

• Professional English proficiency and time zone overlap within CET ± 2 hours.

✨ Nice to Have

• Experience with audio/video streaming or TTS.

• Work with LLMs, PyTorch, Transformers, or ONNX Runtime.

• Knowledge of Rust or Go for high-performance paths.

• Experience leading end-to-end features in fast-paced environments.

🌍 What We Offer

• 100% remote contract, flexible schedule focused on outcomes.

• Multidisciplinary team and a culture of continuous feedback.

📜 Selection Process

• Interview (40 min)

• Technical Deep-Dive (90 min) – Pairing with the CTO

• Cultural Fit & Roadmap (45 min) – Chat with the CEO and Co-CEO

  All steps are completed within ≤ 7 days from the initial interview.

🚀 We’re Not Your Typical Startup

Orga AI is a startup founded by Marc Revert (CEO), a 17-year-old entrepreneur, and Julio Roldán (Co-CEO), a seasoned professional with over 30 years of experience. Our international team of 18 members spans the US, Japan, Argentina, Spain, and France.

Salary and compensation

Benefits

🌎 Distributed team

💰 Equity compensation

🎅 We hire old (and young)

Sahara AI is looking to hire a ML Research Intern to join their team. This is an internship position that can be done remotely anywhere in the United States.

About Us

Role Overview

What You’ll Do

• Build and maintain the Interviews Chat mobile app using React Native.
• Collaborate with the existing team to bring Interview Copilot and Interview Prep to mobile.
• Implement smooth, native-feeling UI and seamless integration with backend APIs.
• Optimize performance for both iOS and Android platforms.
• Handle edge cases around audio, permissions, and background activity (e.g. for meeting-based interviews).
• Test, debug, and iterate quickly based on user feedback.

What We’re Looking For

• 3+ years of experience building mobile apps with React Native.
• Strong command of JavaScript/TypeScript, React, and mobile performance optimization.
• Familiarity with mobile-specific challenges: push notifications, audio access, app permissions, App Store / Play Store submission.
• Experience integrating REST or GraphQL APIs.
• Ability to work independently in a fast-paced remote environment.
• Bonus: experience with speech-to-text, OpenAI, or real-time data handling.
• Bonus: previous work on tools or products related to productivity, video/audio communication, or AI.

Why Join Us?

• Work remotely from anywhere in the world.
• Be the lead mobile developer on a growing product with real impact.
• Shape the future of a tool that helps people land jobs and level up their careers.
• Collaborate with a highly technical, no-fluff team.
• Flexible working hours and competitive compensation.

About the Process

We keep it simple and fast. If your profile looks like a match, we’ll reach out for a quick chat. No take-home tests, just real discussion and code if needed.

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🏖 Paid time off

⬜️ No whiteboard interview

🚫 No politics at work

🎅 We hire old (and young)

Jump | Software Engineer Full-Time (Contractor) | Global Remote

Who are we?

Hi! We’re jumpapp.com and we’re looking for contract software engineers. Our startup is moving fast, our customers love us, and we have an incredible team of people who are collaborative and deeply care about what we’re building!

If you don't have experience with everything in our tech stack still apply! We are willing to teach the right candidates and get them up to speed. Our tech stack is Elixir, Liveview, Postgres, Github, k8s & Terraform on Google Cloud.

What is the job?

This role pays $30-$70/hr and is for global software engineering contractors.

You can work any hours from anywhere. Our code is clean, well tested, well architected and fun to work in. You’ll love how quickly you can ship stuff!

What is the hiring process?

We have a 3 step hiring process and it takes about a week.

First, we’ll send a screening test where you’ll have 30 minutes to record your screen building a simple app.

Second, you’ll have 48 hours to build a real feature (as your own app) that we actually need. Anyone who successfully completes this challenge before the deadline will be paid $3,000. It must be a complete deployed & working app with all requirements met perfectly. If hired your first task will be to use your code to finish building the feature.

Finally, if your code looks good, our final step is a short chat with our CTO.

You can and should use AI to help you create this app. We are all in on the use AI and want someone who can make the most of it!

Stats on that paid project:

140 people were invited to the screening test

10 people successfully completed the screening test.

7 people submitted a project.

4 people earned $3,000 for a perfect working app

2 people were hired full-time

We’ve done 7 rounds and each person we’ve hired has been truly amazing. We look forward to finding the next!

Our Culture

We have a rigorous hiring process yet a kind and encouraging culture. We hire for a mix of experience, aptitude & attitude. We are a family-first company (13 kids among the founders), so we work smart and hard but not round the clock at the expense of family.

Other info:

• We buy the subscriptions you need (Cursor.ai, ChatGPT, etc)

• We’re a small and efficient dev team

• We’re growing gangbusters. All revenue-backed, super low churn.

• Raised a $20M Series-A a few months ago

• $30-$70/hour depending on experience

• HQ based in SLC, Utah

• You can work any hours from anywhere

Salary and compensation

Eight Sleep is hiring a remote Senior Backend Engineer. This is a full-time position that can be done remotely anywhere in the United States.

Eight Sleep - The sleep fitness company.

MongoDB is hiring a remote Senior AI Engineer, Code Generation. This is a full-time position that can be done remotely anywhere in the United States.

MongoDB - The database for modern applications.

Customer.io is hiring a remote Senior Frontend Engineer. This is a full-time position that can be done remotely anywhere in Americas.

Customer.io - Power automated communication that people like to receive.

Role Intro

Ethereal is DeFi’s next major trading protocol and the first built on Ethena. Recently launching Testnet, we’re at $700M+ TVL on track to become a top 10 ecosystem. This is a rare opportunity to join a world class DeFi team.

We’re building a Perps DEX, which will handle over 1 million orders per second delivering CEX level performance, with on-chain security.

You’ll be part of an engineering-first team solving deep, complex problems that haven’t been tackled before. If you thrive in an environment about optimisation, distributed systems, and real-time performance at scale, this is your kind of challenge.

This is a remote team who work within AEST, strong preference for AU/NZ location, but all applications must be from timezones within GMT +7 and GMT+13.

About the Role

We’re hiring a Senior Backend Engineer to help design and optimise the core infrastructure across both an on/off chain EVM/Typescript architecture. You’ll be working on high-throughput systems that redefine execution speed and efficiency in DeFi.

What You’ll Be Doing

• Designing and implementing scalable, distributed backend systems to handle millions of orders per second.
• Optimising for latency and performance
• Working with event-driven architectures, real-time data pipelines, and high-throughput APIs.
• Collaborating with front end and protocol engineers to build an entirely new class of DeFi trading infrastructure.
• Ensuring fault tolerance, efficiency, and security across the platform.

What We’re Looking For

Essential Skills:

• Strong experience in backend development using Node.js & TypeScript building applications that have proven to scale
• Deep understanding of and experience with distributed systems - scalability, high availability, and performance tuning.
• Strong experience with CI/CD, AWS.
• Experience building or contributing to production DeFi or web3 projects.

Highly desirable:

• Prior work with real-time trading systems or large-scale on-chain applications
• Solidity/smart contract knowledge is not essential but a bonus.

Why Join Us?

• Fully remote (AEST ± 3 hours)
• Get paid on-chain (USD stables)
• Work alongside world-class engineers building core DeFi infrastructure
• Get early ownership in a protocol with $700M+ TVL and serious momentum
• Solve complex, technical problems with real user impact
• No politics - just sharp, curious engineers delivering fast

If you’re passionate about building the future of DeFi, let’s chat.

💡 We are seeking a Senior Fullstack Developer with a strong backend focus to join our core team. This hands-on role is ideal for candidates who take full ownership of their work and are passionate about building scalable, high-impact iGaming solutions. You will drive the development of partner integrations, backoffice tools, and APIs, while collaborating closely with other experts to deliver robust, AI-powered features. 💡

Key Requirements

• Significant experience in fullstack development, with a strong focus on backend systems
• Recent hands-on experience in high-load, successful product teams (iGaming or similar domains preferred)
• Demonstrated proficiency in AI engineering practices (must-have)
• High level of ownership and initiative in driving projects from concept to delivery

Tech Stack

• Node.js (primary backend)
• React (frontend)

Responsibilities

• Lead the development and integration of partner systems
• Build and maintain backoffice tools for internal operations and analytics
• Design, implement, and optimize APIs for internal and external use
• Provide ad-hoc technical support and solutions for evolving business needs
• Collaborate with cross-functional teams to deliver AI-driven features and enhancements
• Ensure scalability, security, and performance across all systems

What We Offer

• The opportunity to shape the future of iGaming with innovative, high-impact products
• Work in a high-ownership, expert-driven environment alongside industry leaders
• Competitive compensation and long-term growth potential

If you are a skilled fullstack developer with a backend mindset, strong AI expertise, and a passion for building next-gen gaming infrastructure, we want to hear from you.

Salary and compensation

Benefits

🌎 Distributed team

🏖 Paid time off

👀 No monitoring system

🚫 No politics at work

🎅 We hire old (and young)

Boulevard is hiring a remote Director of Engineering (Data). This is a full-time position that can be done remotely anywhere in Canada or the United States.

Boulevard - Software for self-care.

Sourcegraph is hiring a remote Senior Support Engineer - US West [IC3]. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Sourcegraph - Advanced code search.

About Us

Raiku is reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on Solana, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance—solving the foundational failures that cause transactions to miss, trades to revert, and systems to collapse under pressure. By placing high-performance compute close to where transactions happen and coordinating execution through our advanced scheduling engine, Raiku empowers developers to build scalable, high-performance applications—and gives institutions the reliability and control they demand. We believe financial infrastructure should behave like physics: fast, reliable, and predictable—every time, without exception.

About the Role

As a Protocol Research Specialist at Raiku, you will be at the forefront of protocol research and development, bridging the gap between technical innovation and market implementation. You’ll be crucial in monitoring and influencing protocol developments while translating complex technical capabilities into compelling use cases for our target markets. This position requires a unique blend of technical expertise, market understanding, and communication skills.

Core Responsibilities

Protocol Research & Development

• Monitor and analyse Solana protocol changes (SIMDs) and their impact on Raiku’s infrastructure
• Drive Raiku’s protocol development by drafting and advocating for strategic SIMDs
• Host technical workshops with the team on relevant SIMDs and architectural changes to the network.

Product & Commercial

• Create technical use cases and system diagrams showcasing Raiku’s infrastructure capabilities.
• Support commercial discussions with partners and clients
• Transform technical capabilities into clear value propositions for target sectors
• Bridge the gap between technical capabilities and commercial opportunities

Technical Communication & Writing

• Produce technically accurate content for marketing and educational purposes.
• Represent Raiku in technical discussions across public forums
• Collaborate with the team on technical documentation and presentations
• Contribute to the company’s thought leadership in the Solana ecosystem

What You’ll Bring

• Bachelor’s degree or higher in Computer Science, Engineering, or related technical field
• Proven track record of writing in-depth technical articles mainly focused on blockchain protocol architecture and improvement proposals
• Ability to effectively bridge business requirements with technical specifications
• Deep understanding of blockchain protocols, particularly Solana’s architecture and ecosystem
• Experience with protocol development and improvement proposals
• Outstanding technical writing and documentation skills
• Proven ability to translate complex technical concepts into clear, business-focused use cases
• Excellent communication skills for both technical and non-technical audiences
• Track record of working independently while collaborating effectively with cross-functional teams

Preferred Qualifications

• Strong stakeholder management skills with experience in client-facing roles
• Familiarity with Solana’s governance and improvement proposal process
• Experience in product development or technical sales
• Active participation in blockchain technical communities

Benefits

• Opportunity to shape the future of Solana’s infrastructure
• Competitive compensation package, including token allocation
• Remote-first work environment
• A one-off allowance upon joining to set up a home office
• Professional development opportunities
• Chance to work with cutting-edge technology and world-class engineers

GitLab is hiring a remote Assigned Support Engineer / Senior Support Engineer (EMEA). This is a full-time position that can be done remotely anywhere in EMEA.

GitLab - A single application for the entire DevOps lifecycle.

"

We’re building an autonomous engine for scientific discovery—an AI system that designs, plans, and learns how to learn. This role is for exceptional people who want to invent a better way to optimize products and generalize models over complex search spaces using reinforcement learning, Bayesian methods, and active experimentation.

You’ll be part of the core research team. No side projects. No throwaway intern work. You’ll be expected to think deeply, write clean code, and help us push the theoretical and practical boundaries of intelligent discovery systems.

What You’ll Work On

* Designing and implementing the core decision-making framework.  

Qualifications

* Strong mathematical foundation, with emphasis on probability theory, information theory, and optimization.

Bonus:

* Experience with BoTorch, GPyTorch, Pyro, Stan, or JAX.

",

GitLab is hiring a remote Developer Advocate. This is a full-time position that can be done remotely anywhere in North America.

GitLab - A single application for the entire DevOps lifecycle.

Wikimedia Foundation is hiring a remote Senior Site Reliability Engineer. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Wikimedia Foundation - The non-profit that operates Wikipedia.

CrazyGames.com is an HTML5 browser games platform with 40M monthly active users from countries around the world. In just a few years, we’ve grown from a hobby project to a team of 35 experts. CrazyGames is now expanding its reach and looking for a remote Mobile App Developer.

You will be working in a small, fully remote engineering team where you will build and enhance our mobile applications for both iOS and Android. CrazyGames is already used by millions of users daily, providing a massive audience for your work from day one. While skills across both platforms are valued, we are particularly seeking strong iOS expertise to complement our team’s current capabilities.

Key outcomes for the role:

• Within 1 month, you have a good understanding of the current architecture of the website and successfully built and shipped native features or enhancements within our mobile apps.
• Within 3 months, you have proactively identified and implemented a tangible improvement to mobile build pipelines, automated testing and development workflow, demonstrably saving time or reducing friction for the mobile development process.
• Within 6 months, you take ownership over significant mobile app features or modules (especially iOS-centric ones), managing them from scoping through development, testing, and release.
• Within 9 months, you propose architectural improvements to our mobile app codebase or the web-native integration layer, enhancing maintainability, performance, and future feature development.

On a typical day you might:

• Implement and refine both native and web UI elements and interactions based on designs for our iOS and Android apps.
• Develop and integrate native functionalities (e.g., push notifications, platform-specific APIs) that enhance the core PWA experience.
• Work on the bridge and communication layer between the web view and the native app shell.
• Propose and discuss mobile-specific user experiences and native integrations together with the designer, and product manager.
• Identify performance bottlenecks or areas for improvement in the mobile apps and refactor code or implement native solutions.
• Break down mobile-focused features or epics into specific tasks and discuss implementation strategies, especially for iOS, with the tech lead and team.

What we offer:

• Top-notch engineers as colleagues. We like to hire experts.
• A modern mobile development environment leveraging web technologies combined with native development (Swift for iOS, Kotlin for Android). Experience with bridging technologies is a plus.
• Your work directly impacts millions of users across the globe playing hundreds of millions of game sessions per month.
• A lot of responsibility and freedom. We hire only experts and trust them to deliver excellent results.
• Flexible working hours and location. The results are what count!
• Team weeks: we organize a week somewhere in Europe once or twice per year. We pay for transport and accommodation so you can have fun with the team.
• The opportunity to play games and claim it’s work.

Job requirements

Reach out if:

• You have demonstrable experience developing native mobile applications, with a strong focus and deep understanding of iOS development (Swift/Objective-C and core iOS frameworks). Experience with Android (Kotlin/Java) is a significant plus.
• You have experience with or are eager to learn more about React web development.
• You have experience working with or integrating web views (WKWebView/WebView) or PWAs within native mobile applications.
• You have experience optimizing mobile applications for responsiveness, and smooth user experience across various iOS devices and versions.
• You can think from the perspective of the mobile user and understand platform conventions.
• You have experience interpreting mobile analytics to drive development choices.
• You are intelligent, efficient, and organized. You have an attention to detail.
• You like open, efficient, and to-the-point communication and you have experience working effectively in a remote team.
• Bonus points for experience with web-to-native bridging technologies (like Capacitor or custom implementations) or cross-platform frameworks (like React Native, Flutter) even if not directly used here.

P2P.org is the largest institutional staking provider with a TVL of over $6B and a market share exceeding 20% in restaking.

We are continually focused on researching and improving our infrastructure to extract maximum APR while enhancing security. For instance, in ETH and SOL, our NRR is on average 10% higher than the market, and in DOT, it’s 20% higher.

We also place significant focus and resources on launching new networks such as TON, Avail, Monad, Babylon, Story, Berachain, and others, along with yield products. From restaking, where we are the largest operator with a 20+% market share, to yield aggregators on stablecoins.

Our clients include BitGo, Copper, Crypto.com, Ledger, ByBit, Bitget, OKX, HTX, Bitvavo, SBI, and others, who choose us for our client-centric approach and extensive product line from unified API to widgets and custom dApps.

We are also actively expanding our product line, exploring RWA, data, yield, and service products for banks, exchanges, custodians, and wallets.

P2P.org unites talented iniduals globally ❤️

Despite our distributed team, we share a passion for decentralized finance - a fairer system for all. We code, learn, create, and connect to shape finance’s future 💰

P2P.org boasts a strong reputation and network. We prioritize customer satisfaction and, as tech enthusiasts, develop innovative solutions that bolster our brand.

You will 🚀

• Serve as the technical advisor for our institutional clients during sales and onboarding
• Conduct technical discovery and design tailored solutions using our staking APIs, SDKs, and platform tools
• Deliver live product demos, technical workshops, and architectural consultations
• Work cross-functionally with Engineering and Product to support complex integration flows
• Maintain technical documentation, integration playbooks, and POCs to accelerate time-to-market
• Translate customer feedback into actionable product insights
• Build trust and long-term relationships with key stakeholders (Product Managers, Technical Leaders, CTO)

You have 🤓

• Proficient in both written and spoken English and Mandarin
• 4+ years of experience as a Sales Engineer, Technical Lead, Engineering Manager, or similar technical client-facing role
• Strong communication skills with the ability to engage both technical and non-technical stakeholders
• Solid experience with APIs, Postman, SDKs, and scripting in TypeScript, JavaScript, or Python
• Experience preparing and delivering architecture diagrams, implementation proposals, and live demos
• A proactive, problem-solving mindset and the ability to take ownership of complex projects

Nice to have

• Blockchain, staking, or Web3 experience
• Familiarity with yield products, wallet integrations, or RWA concepts
• Experience with institutional custody flows and HSM integrations
• Exposure to staking protocols such as Ethereum, Solana, Polkadot, Cosmos
• Experience working in a regulated or security-sensitive environment

At P2P.org we have a team of experts with their own unique approach and ownership culture. Together we gain experience and make dreams come true! 🌟

• Full-time Contractor (Indefinite-term Consultancy Agreement)
• Competitive salary level in $ (we can also pay in Crypto)
• Well-being program
• Mental Health care program
• Compensation for education, including Foreign Language & professional growth courses
• Equipment & co-working reimbursement program
• Overseas conferences, community immersion
• Positive and friendly communication culture

P2P.org is committed to providing equal opportunities. All applicants will be considered without regard to race, color, national origin, religion, sex, sexual orientation, gender identity, veteran status, or disability.

Dropbox is hiring a remote Full Stack Product Software Engineer. This is a full-time position that can be done remotely anywhere in Poland.

Dropbox - Keep life organised and work moving – all in one place.

Headspace is hiring a remote Software Engineer, Full Stack. This is a full-time position that can be done remotely anywhere in the United States.

Headspace - The go-to self-guided meditation and mindfulness app.

Senior Full-Stack Engineer (Node.js + Next.js)

About AMK Solutions

AMK Solutions is a software consultancy that helps fast-growing startups and established companies build reliable, scalable, and beautiful products. We are a tight-knit, remote-first team that values ownership, clear communication, and delivering quality software.

We're expanding our development team with experienced full-stack engineers who can work across both backend and frontend, contribute to large-scale systems, and collaborate effectively in a high-performance environment.

What You’ll Be Working On

We're hiring senior developers to help us deliver high-traffic web platforms that include real-time features, modern APIs, and mobile-friendly frontends. You’ll work on a shared repo using TypeScript, contributing across backend services (Node.js/Express) and frontend applications (Next.js/React).

You’ll collaborate closely with designers, product managers, and fellow engineers to ship features that are performant, scalable, and well-tested.

Responsibilities

Develop backend services using Node.js, Express.js, and TypeScript

Build and maintain RESTful APIs for user accounts, voting systems, and live updates

Create responsive web apps using Next.js, React, Tailwind CSS, and component libraries like ShadCN

Work with MongoDB and Mongoose for data modeling and queries

Implement authentication flows (email, social login, OTP) using Passport.js

Handle real-time communication with users using Socket.io

Set up background job processing with Redis and Bull

Contribute to shared frontend components for web and future mobile apps

Optimize performance, caching, and SEO rendering strategies

Requirements

5+ years of experience building full-stack applications at scale

Strong knowledge of Node.js, Express.js, and TypeScript

Proficiency in building frontend apps with React and Next.js (SSR/SSG)

Experience working with MongoDB, Redis, and job queues

Familiarity with Tailwind CSS and modular component libraries

Strong understanding of REST APIs, real-time updates, and background processing

Fluent in English, with excellent written and verbal communication

Must be able to work during U.S. business hours

Bonus Skills

Familiarity with React Native and the Expo ecosystem

Experience with integrations like Stripe, Typesense, or reCAPTCHA

Exposure to DevOps tools (Docker, AWS, Pulumi) is helpful, but not required

What We Offer

Competitive compensation

Fully remote team and flexible work culture

U.S. time zone alignment for collaboration

Opportunity to grow with a high-performing engineering team

To apply, send your resume to [email protected].

We’re looking for team players who write clean, tested code and take ownership of what they build.

Salary and compensation

Benefits

🌎 Distributed team

🏖 Paid time off

📚 Learning budget

Teracy is a presence app for remote workers and people who live apart — designed to help you feel close, even when far away. We’re rethinking what it means to live and work together online with depth, presence, and care.

About Teracy

We’re building a product that helps people truly share time and life together online, not just collaborate. No more cold tools for task management. We believe in designing software with soul, tools that enrich real human connection.

• Launched in Japan, used by startups, public companies, students, and communities (no ads or press)
• 1-week retention 80%, 30-day retention 72%
• Goal: 1M users by end of 2025 — 20K+ on the waitlist already
• Bootstrapped ($1.3M) + Pre-seed funded (~$1.7M raised)
• Preparing for global launch, starting with the US

What We’re Building

A multi-platform presence app for teams, communities, and the people who matter most

Teracy is not just another productivity app. It’s a reimagined layer for remote work and remote relationships — a product that redesigns presence in online life.

• “Shared presence” experience that lets people live together online
• Web / Desktop / Mobile with real-time interaction (WebRTC, LiveKit)
• Brand and UX relaunch coming in Summer 2025
• Built with React, Electron, Swift, Node.js

What We’re Looking For

You might be a fit if you:

• Feel frustrated with soulless tools or hyper-optimized culture
• Want to use your talent for something that makes life better
• Care deeply about people and software
• Have grit—been through hard things and came out stronger
• Value honesty, ownership, and shared growth
• Want to build something truly meaningful from the ground up

Requirements

Must-have:

• 5+ years experience or equivalent skill level
• Strength in either:
• • Frontend: React / Electron
  • Mobile: Swift (iOS)
  • Backend: Node.js / Infra
• Comfortable working across platforms (Web, Mobile, Desktop)
• Experience in early-stage or cross-functional teams
• Fluent in async communication and fast feedback cycles

Nice-to-have:

• Tech lead or EM experience
• Cross-platform UI/UX experience
• Familiarity with LiveKit, WebRTC, or real-time systems
• Startup or founder-level product delivery experience

Compensation & Working Style

• Equity: Stock options or founder-level shares
• Location: Fully remote + optional offsite retreats
• Timezone: Any country — overlap with one of these:
• • JP 9–13 / SF 17–21 / NY 20–24
• Tools: Slack, Notion, Figma, GitHub, Teracy
• Communication: Clear, async-first, written culture — work feels fun and connected, even remotely, on Teracy

Team & Culture

• Small team: 6 full-time (2 engineers + CPO who also codes = 3 devs), 1 intern
• Mostly Japan-based, moving to the US in 2025
• Cross-functional: design, engineering, product, growth
• Async-first but fast-moving
• Main language: English (with flexible Japanese use)
• We trust each other, take ownership, and move with care

More Detail

https://teracy.notion.site/Teracy-Introduction-EN-213a8897c4468089979fe40b0dedf48b?source=copy_link

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🏔 Company retreats

💰 Equity compensation

Instructure is hiring a remote Customer Support Engineer. This is a full-time position that can be done remotely anywhere in Australia.

Instructure - Makes software that makes people smarter.

Are you a talented Senior AI Engineer 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 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 - Senior AI Engineer:

• 3+ years of commercial experience applying AI to practical technology solutions
• A solid understanding of Python is a must; experience with other programming languages commonly used in AI is a plus
• Experience with AWS, GCP, or Azure is required
• Experience with large language models (LLMs) is mandatory
• 2+ years of commercial experience with OpenAI technologies is required

Requirements - Senior Python & LLM Engineer:

• 5+ years of commercial experience with Python.
• Experience with large language models (LLMs) is required.
• Experience with AWS, GCP, or Azure is essential.

Other Requirements:

• Strong technical skills: as a Senior Engineer, 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 Full-Stack Developers, so if you have 4+ years of commercial experience in software development and you are fluent with React & Python, Ruby & React, UI & UX, Blockchain, WordPress & Figma, Svelte & TypeScript, Svelte & Node, Svelte & Python, Shopify & JavaScript, 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., Asia (Philippines, Indonesia), Oceania (Australia, New Zealand, Papua New Guinea), Canada, and 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.

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 monitoring system

🚫 No politics at work

🎅 We hire old (and young)

About Vac

Vac builds public good protocols for the decentralised web. We do applied research based on which we build protocols, libraries and publications.

The role

We are seeking an experienced Distributed Systems Evaluation Engineer to join the Vac DST team. This role focuses on rigorously assessing the performance and reliability of IFT projects at scale. You’ll be responsible for designing and executing comprehensive evaluation strategies, leveraging both large-scale lab deployments and protocol behaviour modelling scripts. Your expertise will be crucial in analysing these complex distributed systems, automating intricate test scenarios, and providing in-depth insights into system behaviours.

Working closely with cross-functional teams, you’ll troubleshoot complex issues and translate technical data into actionable recommendations. Proficiency in containerisation, cloud technologies, and distributed systems principles is essential.

This position offers the opportunity to make a significant impact on the robustness and scalability of IFT projects, contributing to the development of next-generation decentralised technologies.

Key responsibilities

• Design, implement, and maintain sophisticated tools for analysing distributed systems at scale, ensuring robust and efficient testing processes.
• Orchestrate and automate large-scale deployments to rigorously validate the functionality, performance, and scalability of complex distributed systems.
• Identify, document, reproduce, and troubleshoot intricate issues in distributed environments, collaborating closely with IFT project teams to resolve challenges.
• Develop a comprehensive understanding of IFT project protocols and components to provide insightful analyses that drive improvements and inform decision-making.
• Create and maintain scripts that model protocol behaviour, utilising these models to validate and sanity-check large-scale deployment runs.
• Work with Docker, Kubernetes, and POSIX-like systems
• You ideally will have
• Solid experience with scripting languages like Python.
• Experience with statistical analysis tools, like pandas, seaborn.
• Experience with systems programming languages like Nim, Go, Rust.
• Understanding of network behaviours (libp2p, gossipsub, p2p networks).
• Working knowledge of Docker, Kubernetes, and POSIX-like systems.
• Excellent written and conversational communication skills.
• Alignment with our core values and principles.

Bonus points

• Experience with off-the-shelf networking stacks such as libp2p.
• Experience in blockchain technology.
• Experience working for an open-source organisation.
• Hiring process
• Interview with our POps team
• Interview with team member from the Vac DST team
• Take home assignment & interview with team member from the Vac DST team
• Interview with Vac team lead

Compensation

The expected compensation range for this role is negotiable, dependent on how we assess your skills and experience throughout our interview process. We are happy to pay in any mix of fiat/crypto.

DV Labs is building the next generation of distributed validators to make Ethereum staking more resilient, decentralized, and secure.

Our software allows groups of operators—large and small—to collaboratively run a single validator while minimizing single‑point‑of‑failure risk and maximizing client ersity. We are a venture‑backed, remote‑first team that values open‑source ethos, long‑term thinking, and empirical decision‑making.

We’re looking for a product‑minded Full‑Stack Engineer who can take UI/UX ideas, wire them to backend services, and ship features that help operators run distributed validators with confidence.

You’ll work closely with protocol & infra engineers, pulling consensus‑layer telemetry that our analytics team already prepares, and surfacing it through APIs and dashboards that delight end users.

Responsibilities

• Build end‑to‑end features with Next.js (React/TypeScript) on the front‑end and NestJS(Typescript) on the back‑end.
• Query ClickHouse and MongoDB to consume outputs from existing analytics pipelines; transform & expose that data via REST endpoints and typed client SDKs.
• Integrate consensus‑layer insights (beacon duties, attestation stats, slashing alerts) so stakers understand their validator health.
• Interact with deployed Solidity smart contracts using viem/ethers.js/web3.js to read on‑chain state or submit transactions (e.g., validator registration, withdrawal credentials updates).
• Automate testing & deployment with GitHub Actions and serverless hosting on Vercel.
• Contribute to technical road‑mapping, architecture reviews, and RFCs in our open, async‑first culture.

Requirements

• 4+ years building production full‑stack web applications.
• Advanced TypeScript skills across React and Node.js.
• Demonstrated experience designing & consuming REST APIs.
• Ability to query and optimise ClickHouse or another analytic DB, plus familiarity with MongoDB.
• Working knowledge of the Ethereum consensus layer (Beacon Chain duties, attestations, slashing conditions).
• Proven experience interacting with deployed Solidity contracts (reading state, sending signed transactions, gas estimation, event parsing).
• CI/CD mindset; you automate workflows with GitHub Actions (or similar) and treat infrastructure as code.
• Strong testing discipline: unit, integration, and E2E where it matters.
• Excellent written communication; comfortable in an async, globally distributed team.

Nice to have

• Experience with SQL
• Exposure to GraphQL (Apollo Server/Federation) — some internal services use it.
• Contributions to Ethereum client code, staking protocols, or DV research (Lido, DVT).Experience with p2p networking stacks (libp2p, gRPC) or BFT systems.
• Familiarity with container orchestration (Kubernetes) and infrastructure‑as‑code (Terraform).
• Go proficiency (many beacon‑chain tools use them).
• Data‑visualisation skills (D3.js, Recharts) for rich dashboards.

About the team - How we work?

• Async‑first: proposals & design docs precede meetings.
• Small, senior team: high trust & ownership.
• Open‑source by default: most code and discussions are public.

Our Values

• Synergistic
• Secure
• Innovative
• Reliable

Compensation

• Competitive salary in dollars
• Full remote company - Work from wherever you want
• Possibility to attend to relevant Conferences
• 2 Recharge weeks at the end of the year
• Equipment budget

Thanks for submitting your application! We’re excited to connect and hopefully build amazing things together.

Best of luck!

DV Labs is building the next generation of distributed validators to make Ethereum staking more resilient, decentralized, and secure.

Our software allows groups of operators—large and small—to collaboratively run a single validator while minimizing single‑point‑of‑failure risk and maximizing client ersity. We are a venture‑backed, remote‑first team that values open‑source ethos, long‑term thinking, and empirical decision‑making.

We are searching for a dedicated Data Engineer to design, build, and own the data platform that powers product decisions, validator‑performance analytics, on‑chain research, and community transparency.

Responsibilities

• Ingest & model Beacon‑chain data — blocks, attestations, sync‑committee aggregates, deposits, and slashings—into ClickHouse and MongoDB at multi‑TB scale.
• Develop scalable ETL/ELT pipelines in Apache Spark (PySpark/Scala) orchestrated via GitHub Workflows and containerized CI/CD.
• Implement columnar schemas & partition strategies to achieve sub‑second analytical queries and reduce storage footprint.
• Expose clean, version‑controlled datasets & metrics to internal stakeholders through APIs, dashboards, and notebooks.
• Collaborate with Protocol & DevOps teams to surface validator health, slash‑risk events, and protocol‑level anomalies in real time.
• Own data quality, lineage, testing, and documentation across the stack; champion best practices and continuous improvement.
• Contribute to open‑source tooling around consensus‑layer data, distributed‑validator monitoring, and Ethereum research.

Requirements

• 2+ years of professional experience in data engineering or high‑performance backend roles.
• Production expertise with ClickHouse and Apache Spark on multi‑terabyte datasets.
• Hands‑on experience operating MongoDB for semi‑structured/operational workloads.
• Proficiency in Python (pandas/PySpark) and/or Scala; solid Git and CI/CD habits (GitHub Actions/Workflows or similar).
• Deep understanding of the Ethereum consensus layer (Beacon chain architecture, validator lifecycle, slashing conditions, client ersity—Lighthouse, Prysm, Teku, etc.).
• Comfortable working in a remote, asynchronous startup environment with high ownership and autonomy.

Nice to have

• Familiarity with Ethereum execution‑layer JSON‑RPC, MEV‑Boost, and block‑building economics.
• Experience operating distributed systems on Kubernetes, Nomad, or similar orchestrators.
• Fluency in Python.
• Exposure to data‑observability stacks (dbt, Great Expectations, Dagster) and time‑series monitoring (Prometheus/Grafana).
• Prior contributions to web3 or other open‑source projects.

About the team - How we work?

• Async‑first: proposals & design docs precede meetings.
• Small, senior team: high trust & ownership.
• Open‑source by default: most code and discussions are public.

Our Values

• Synergistic
• Secure
• Innovative
• Reliable

Compensation

• Competitive salary in dollars
• Full remote company - Work from wherever you want
• Possibility to attend to relevant Conferences
• 2 Recharge weeks at the end of the year
• Equipment budget

Thanks for submitting your application! We’re excited to connect and hopefully build amazing things together. Best of luck!

Thanks for submitting your application! We’re excited to connect and hopefully build amazing things together.

Best of luck!

Binance is looking to hire an Associate Software Engineer (Front-End) to join their team. This is a full-time position that can be done remotely anywhere in the United States.

At Inverter Network, we’re looking for a Senior Full-Stack Developer to help build our new product from the ground up. You’ll be part of a small, fast-moving team, working closely with product, engineering, and external partners to deliver a high-growth, institutional-grade product in the RWA Tokenization space.

• Location: Remote (CET or adjacent timezone)  
• Type: Full-Time  
• Compensation: Competitive Salary + Equity

What you’ll do

• Lead development across the entire stack — from frontend UI/UX to backend APIs and smart contract integration— through the full product lifecycle, MVP to production-grade release.
• Collaborate within a cross-functional team to design, develop, test, and ship high-impact features rapidly.
• Build and maintain a component library and a modular backend architecture that integrate seamlessly with our smart contract infrastructure.
• Translate product and business goals into scalable, maintainable, and performant web experiences.
• Take ownership of the backend infrastructure, including API development, authentication, deployment, and integration with blockchain networks.

What you bring to the table

• You’re a self-starter who thrives in fast-paced, ambiguous environments. You are ready to hit the ground running and iterate quickly.
• You’re pragmatic and product-focused: You care about the “why” behind the features you build, and strike a balance between speed and quality. You can move fast when it’s a PoC, and sweat the details when it matters.  
• You’re at home in a remote-first, global startup: You communicate clearly in English (both written and spoken), proactively reach out to your team members, document your thinking, and coordinate without needing constant check-ins.
• You have 4+ years of web3 full-stack or frontend-heavy development experience, ideally in Web3 startups or scale-ups.
• You’re comfortable switching contexts between frontend, backend, and Web3 layers as needed.
• Design Knowledge:
  • You understand design tokens and know how to implement scalable design systems
  • You care about accessibility and know how to handle things like color contrast, focus states, and semantic structure when it matters
  • You’re fluent in Figma:
    • You understand its limitations and know how to interpret intent, bridging gaps when it cannot produce a 1:1 match with code
    • You know how to inspect designs in Dev Mode, understand component structure, and translate them accurately into code
• You’re experienced with event-driven or asynchronous system design; You understand queues, message buses, pub/sub, and how to build resilient flows across services.
• You care about visibility in distributed systems, you’re comfortable setting up structured logging, tracing spans, and surfacing metrics to make systems observable and debuggable.

What your skills are

Frontend Development

• React | Next.js | Vite | Tailwind CSS | Shadcn/ui
• TanStack Router & React Query | Zustand
• Web3 tools: Wagmi | Viem | SIWE | RainbowKit | WalletConnect

Backend Development

• Typescript | Node.js | RESTful APIs | Authentication (OAuth, JWT, SIWE)
• Database integration:
• DynamoDB
• MongoDB
• API security best practices, middleware, rate limiting, and error handling.

Web3 & Blockchain Integration

• Experience integrating with EVM-compatible chains, managing transactions, subscribing to blockchain events, and maintaining an Indexer.
• Solid understanding of dApp architecture, wallet interactions, and secure identity/auth flows.

Tooling & Development Practices:

• You’re committed to writing clean, well-documented code following industry best practices
• You have a strong understanding of component-based architecture, modular backend structure, and monorepo setups.
• You’re comfortable with Git workflows, CI/CD pipelines, and modern package managers (pnpm, npm, Bun).

What we offer

• Competitive compensation and Equity structure. We can pay in a mix of fiat and crypto
• Flexible working hours and remote work options.
• Professional growth and learning opportunities within a rapidly growing blockchain startup
• Collaborative, inclusive work environment with regular offsite opportunities.

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

Kit - The email-first operating system for creators building a valuable business.

"

Please read before applying:

• Please include a note where you answer in not more than 100 words: ‘What is the most complex backend feature you’ve developed where you were the sole or primary developer. Mention the technicals in detail and peak production load.’

• Applications that don’t include the note or meet the minimum requirements will not be considered.

What makes you a good fit: 

• 3+ years of professional work experience developing production level Node.js/Typescript backends. 

• Strong experience with structured DBMSs like PostgreSQL and OLAP databases like Redshift.

• Strong understanding of AWS services such as ECS, RDS, S3, CloudWatch, Elasticache. 

• Experience working with telemetry, CI/CD and IaaC pipelines. 

• Comfortable with US timezones.

What makes you a great fit: 

• Past experience with OpenAI APIs for completions, function calling and building context aware assistants.

• Past experience with Go routines. 

• Building multi-agent systems using frameworks like CrewAI or such. 

• Strong sense of cost optimization strategies, system design, and building efficient API stacks.

Benefits:

• Work from anywhere - We're a distributed team across multiple timezones with a focus on outputs instead of location or working hours.

• Generous PTO policy.

• Competitive pay bracket.

• Equity at a fast growing YC backed co in a disruptive market.

",

"

Please read before applying:

• Please include a note where you answer in not more than 100 words: ‘What is the most impressive project you’ve built where you were the sole or primary developer that has active users. Link the project or demo url’.

• Applications that don’t include the note or meet the minimum requirements will not be considered.

What makes you a good fit:

• 3+ years of professional work experience developing production level React/Typescript frontends.

• Strong experience with API integrations, authentication frameworks, and responsive UIs.

• Strong design sense with past experience on leading design to development projects end-to-end.

• Experience working with CI/CD pipelines, production debugging, and analytics.

• Comfortable with US timezones.

What makes you a great fit:

• Strong integration with current codegen tools like Cursor.

• Strong sense of cost optimization strategies, system design, and building fast loading UIs.

Benefits:

• Work from anywhere - We're a distributed team across multiple timezones with a focus on outputs instead of location or working hours.

• Generous PTO policy.

• Competitive pay bracket.

• Equity at a fast growing YC backed co in a disruptive market.

",

Octopus Deploy is hiring a remote Senior Engineering Manager - Cloud Authentication. This is a full-time position that can be done remotely anywhere in Australia or New Zealand.

Octopus Deploy - Accelerate software delivery with repeatable deployments.

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about us

At telli we are building AI voice agents that are reshaping an entire industry.

Since launching 8-months ago, we raised a $3.6M pre-seed round from Cherry and Y Combinator and grew to $1M in ARR. We are looking for a team members who want to go all-in to help us achieve the next milestone: $10M in ARR.

Two of our co-founders Finn and Philipp previously scaled the heat pump unit of energy unicorn Enpal from 0-150 people. They've seen the ins and outs of scaling phone-based customer processes. These businesses are rushing to deploy AI voice agents. However, creating a demo is easy — building reliable agents that handle millions of calls in production is incredibly hard.

In a world where intelligence becomes a commodity, it is up to us builders to craft new product experiences that let people harness the power of AI.

But building AI voice agents comes with challenges:

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What is the most intuitive way for humans to build and adjust their own AI agents?
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How do you build agents that work reliably across millions of calls in a world of non-determinism?
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How do you ensure that customers can use the latest foundational models without having to understand the technical trade-offs?
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How do you enable companies to build hybrid teams of human and AI agents?
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What does human-computer interaction look like if, instead of having UI elements, you have a hyper-intelligent sidekick?
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These are unsolved problems. Problems that haven't existed since the invention of computers. Solutions that worked in a pre-LLM world won't work today. Nobody knows how to solve these problems; it's up to us to figure it out.

We’re a small, fully in-person team based in Berlin. Even though most people have told us to build this company in SF because of “better talent” - we know there is amazing talent in Europe. We believe you can build a multi-billion dollar software company in Europe, and there is no better time to do this than now.

about the role

This is a high-ownership, high-impact role for engineers who care about velocity and solving real customer problems. You won't just ship code; you will own projects end-to-end, make core product and architectural decisions, and shape the future of this company.

We believe in building a small A* engineering team. We plan to keep the core engineering team small, even while we scale and rely on engineers who have super high impact on the growth of the company.

That is why to succeed, you need to be comfortable with working on any part of our stack. One week you might be polishing the UX of our frontend, the next week e deep into async processing challenges of our voice AI infrastructure If you only want to work on a specific technology/part of the product, this might not be the right role for you.

Right now our engineering team consists of Paulus, Philipp, Błażej, and Seb. We are planning to bring on 2 more people (one of them could be be you).

what you will do

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work closely with our customers, understand their problems, and come up with product experiences that solve their challenges
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build scalable backend infrastructure to handle thousands of AI phone calls a day
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build intuitive user experiences that make sense in an AI-first world
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own high stakes projects end-to-end
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tech stack

Our tech stack includes TypeScript, React, TanStack, Node, Python, Postgres as well as Temporal.io, Twilio, Modal and Pipecat. But more than familiarity with any specific technology, we value a how fast you can learn and the ability to ship end-to-end features.

what makes you a great fit

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you align with our [principles](\"https://principles.telli.com/\")
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you love challenging work and consistently go above and beyond
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you take full ownership of projects
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you want to work in-person in Berlin
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you know what it takes to succeed in a fast-paced, high-ambiguity environment and ideally worked in an early stage startup
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you know how to prioritize high-leverage work
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you want to work with a smart and driven team with (self-reported) low ego
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you want to help build a multi-billion dollar company from the ground up
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you may _ not _ make a good fit if…

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you prefer a remote-first environment
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you like to work on your own with minimum collaboration
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you have no prior experience in software engineering teams
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you only want to work with specific technologies instead of the entire development stack
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you think AI is just \\"hype\\" and doesn’t provide real value
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you want to work 9-5
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perks

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great pay & equity
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access to any (AI) tool that makes you more productive
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gym subscription
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a bright and beautiful office in Berlin Mitte
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company trip to San Francisco in fall 2025
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What We’re Building

Ares is the newest product under Fountain Platform, focused on building high-performance social trading platform for decentralized markets.

We believe trading has evolved — it’s no longer solitary. It’s cultural. It’s real-time. It’s driven by memes, narratives, and reflexive attention loops. Yet most platforms are stuck in static tools built for yesterday’s market structure.

Ares is built for what trading has become — and where it’s going. We fuse speed, signal, social mechanics, and cultural context into a unified trading experience designed for today’s markets — and tomorrow’s meta. At the core is a real-time intelligence layer that aggregates onchain and offchain data, surfacing the pulse of the market as it emerges. But information alone isn’t power — influence is. Ares turns trading into a collaborative, reputation-driven game where every trade is a signal, and every user is a node of intelligence.

We’re not building a better terminal. We’re building the next dominant trading platform — one where culture leads, conviction is rewarded, and traders move markets together.

We’re backed by top VCs and Alliance (tier 1 crypto incubator). This is your opportunity to help define what the future of trading looks like — from the ground up. This isn’t a typical job — and we’re not looking for typical people. We want resourceful, hungry, top 1% builders who move fast and think like founders.

About the Role:

We’re looking for a product-driven senior or staff-level engineer. Our engineering team tackles complex challenges at the core of our trading infrastructure and user experience. At Ares, engineering defines the culture, pace, and quality of everything we build — pushing the limits of what’s possible in crypto-native systems.

What You’ll Do

• Work directly with the CEO and have transparency into other aspects of the company
• Architect important systems and anticipate strategic and scaling-related challenges via thoughtful long-term planning
• Design and implement core infrastructure across the full stack — from high-performance frontends in Next.js + Tailwind to backend systems in NestJS, PostgreSQL, Redis, and Solana RPCs
• Work on transactional engines that optimize for execution speed, accuracy, and UX under volatile, memecoin-driven conditions
• Drive the architecture of our real-time trading intelligence layer, fusing onchain and offchain signals into actionable interfaces
• Build integrations with external services (Telegram, bots, alerting engines) to power novel product experiences
• Ship fast and often — we deploy product daily and treat working code as the ultimate source of truth
• Collaborate directly with founders and a small team of senior engineers in a high-bandwidth, fast feedback loop
• Engage with early users — from CT influencers to alpha groups — and shape features around real workflows
• Take ownership over what you build, with freedom to make autonomous decisions and move without bureaucracy

Our Tech Stack

Tech Stack: Nest.js, Solana, Redis, Postgresql, Typescript, Nodejs, Materialize, gRPC, Drizzle, Websocket, Google Cloud Platform, Terraform

You Might Be a Fit If You

• Have full-stack experience, ideally in performance-sensitive environments (e.g., crypto, fintech, gaming, real-time apps)
• Thrive in fast-paced, product-centric orgs where speed, autonomy, and ownership are the norm
• Can move independently but also communicate clearly in async workflows
• Care deeply about craft, clean abstractions, and performance
• Have strong user empathy and can translate real behavior into real product
• Have understanding of crypto and trading — and care about the details of how and why traders behave the way they do
• Want to work with other A-players — people who think like founders and ship like it

Why Join Us

• Work with a passionate team that is obsessed over product, velocity, and craft
• Ship real infrastructure that’s used by traders and degens daily — the kind of users who demand speed, precision, and performance
• Leave your mark on a product that could reshape how crypto trading is understood — not just features, but the foundation of how people will trade in the social-first, memetic era of DeFi
• It’s all greenfield — no legacy baggage, no bureaucratic blockers, just you, a fast team, and the freedom to build what you think should exist
• We’re backed by top investors and Alliance DAO, with deep ties to the best minds in DeFi
• Total flexibility — async, remote, and built for real builders who want to own their time and output
• You won’t be another cog. You’ll be a core part of shaping the next dominant trading platform

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

CareMessage - Mobile technology to make underserved populations healthier.