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Tasks
- Develop solvers for top protocols like deBridge, Mayan, and Wormhole
- Tackle complex problems (chain reorgs, optimal rebalancing, etc.)
- Work on systems managing millions of dollars automatically
- Go head-to-head with top organizations in the blockchain space
Requirements
Expertise in Rust and deep knowledge of Solana + EVM blockchains
Bonus: Experience with trading bots, NFT sniping, or airdrop hunting
Apply Now:
Location: US, EU or Remote (excluding France)
Consensys is the leading blockchain and web3 software company founded by Joe Lubin, CEO of Consensys and Co-Founder of Ethereum. Since 2014, Consensys has been at the forefront of innovation, pioneering technological developments within the web3 ecosystem.
Through our product suite, including the MetaMask platform, Infura, Linea, Diligence, and our NFT toolkit Phosphor, we have become the trusted collaborator for users, creators, and developers on their path to build and belong in the world they want to see.
Whether building a dapp, an NFT collection, a portfolio, or a better future, the instinct to build is universal. Consensys inspires and champions the builder instinct in everyone by making web3 universally easy to use and develop on.
Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on.
You’ll get to work on the tools, infrastructure, and apps that scale these platforms to onboard one billion participants and 5 million developers. You’ll be constantly exposed to new concepts, ideas, and frameworks from your peers, and as you work on different projects — challenging you to stay at the top of your game. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies.
About MetaMask
MetaMask aims to create a thriving engineering organization that supports the well-being of our engineers while empowering them to do work they are proud of and enjoy. We strive for an environment that gives our people high trust and autonomy, while also facilitating collaboration, communication and camaraderie among teams and teammates. We aspire to build a diverse engineering team, inclusive to people from all backgrounds and demographics. It is also of great importance to us that working at MetaMask is an experience that catalyzes career growth and learning.
What you’ll do
- Contribute to MetaMask’s various user experiences, from home screens and settings to feature screens and other enhancements we dream up
- Unify, enhance and transform our experiences across Portfolio dApp, Browser Extension, and Mobile platforms
- Coordinate and communicate with other experience teams to complete complex projects
- Mentor more junior team members and broadly elevate the level of engineers around you
Would be great if you brought this to the role
- 5+ years working with web and mobile-based technologies
- Hands-on experience with React and React Native
- Extensive experience with modern Javascript (ES6/TypeScript/etc.)
- Strong working knowledge developing cross platform/browser compatibility
- Experience working in an agile development team
- Experience developing medium to large-scale applications across the entire stack with minimal tech debt through sensible abstractions, testing, linting, and adherence to coding/web standards
- Experience consuming APIs
- A demonstrable understanding of Continuous Integration
- Strong understanding of web-based security threats and prevention techniques
Bonus Points:
- Working knowledge of the ERC20 and SPL20 token standards
- Demonstrated passion for and knowledge of blockchain technologies
- An understanding of cyber-cryptography
- Experience working in a decentralized, distributed team
- Previous experience working in Web3
- Product knowledge about the Web3 wallet space
Don't meet all the requirements? Don't sweat it. We’re passionate about building a diverse team of humans and as such, if you think you've got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we're ready for you to challenge our thinking on who needs to be in this role.
The salary range for US-based candidates only will be determined throughout the interview process depending on experience and skills.
In the rapidly evolving Web3 space, we believe that everyone is a builder. This expansive paradigm requires a range of backgrounds, talents, skills, and experiences to influence and shape the future. At Consensys, this diversity fuels our ability to shift control and redefine the realm of possibility. We are committed to ensuring that our technology empowers people and communities with economic and political agency through decentralized technologies. We welcome the range of perspectives and differences and celebrate them. We're excited to see how your unique skills as a builder can contribute to our vision, drive innovation, and help us shape a more inclusive Web3.
Consensys is an equal opportunity employer. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law. Consensys is aware of fraudulent recruitment practices and we encourage all applicants to review our best practices to protect yourself which can be found (https://consensys.io/careers/best-practices-to-avoid-recruitment-fraud/).
Apply Now:
Location: US, EU or Remote (excluding France and Australia)
Consensys is the leading blockchain and web3 software company founded by Joe Lubin, CEO of Consensys and Co-Founder of Ethereum. Since 2014, Consensys has been at the forefront of innovation, pioneering technological developments within the web3 ecosystem.
Through our product suite, including the MetaMask platform, Infura, Linea, Diligence, and our NFT toolkit Phosphor, we have become the trusted collaborator for users, creators, and developers on their path to build and belong in the world they want to see.
Whether building a dapp, an NFT collection, a portfolio, or a better future, the instinct to build is universal. Consensys inspires and champions the builder instinct in everyone by making web3 universally easy to use and develop on.
Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on.
You’ll get to work on the tools, infrastructure, and apps that scale these platforms to onboard one billion participants and 5 million developers. You’ll be constantly exposed to new concepts, ideas, and frameworks from your peers, and as you work on different projects — challenging you to stay at the top of your game. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies.
About MetaMask
MetaMask aims to create a thriving engineering organization that supports the well-being of our engineers while empowering them to do work they are proud of and enjoy. We strive for an environment that gives our people high trust and autonomy, while also facilitating collaboration, communication and camaraderie among teams and teammates. We aspire to build a diverse engineering team, inclusive to people from all backgrounds and demographics. It is also of great importance to us that working at MetaMask is an experience that catalyzes career growth and learning.
What you’ll do
As a staff engineer, you will:
- Contribute to MetaMask’s Assets experiences, including network management, asset presentation (tokens, NFTs, and DeFi positions), and transaction history
- Unify, enhance and transform our experiences across Portfolio dApp, Browser Extension, and Mobile platforms
- Coordinate and communicate with other experience teams to complete complex projects
- Mentor more junior team members and broadly elevate the level of engineers around you
Requirements:
- 5+ years working with web and mobile-based technologies.
- Hands-on experience with React and React Native
- Extensive experience with modern Javascript (ES6/TypeScript/etc.).
- Experience with blockchain fundamentals
- Strong working knowledge developing cross platform/browser compatibility.
- Experience working in an agile development team.
- Experience developing medium to large-scale applications across the entire stack with minimal tech debt through sensible abstractions, testing, linting, and adherence to coding/web standards.
- Experience consuming APIs.
- A demonstrable understanding of Continuous Integration.
- Strong understanding of web-based security threats and prevention techniques.
Bonus Points:
- Working knowledge of the ERC20 and SPL20 token standards
- Demonstrated passion for and knowledge of blockchain technologies
- An understanding of cyber-cryptography.
- Experience working in a decentralized, distributed team.
- Previous experience working in Web3
- Product knowledge about the Web3 wallet space
Other skills to demonstrate:
- Excellent verbal and written communication in English.
- Teamwork, flexibility, initiative, communication and organization.
- Willingness to constantly learn & improve, challenging yourself to stay at the top of your game.
Don't meet all the requirements? Don't sweat it. We’re passionate about building a diverse team of humans and as such, if you think you've got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we're ready for you to challenge our thinking on who needs to be in this role.
The salary range for US-based candidates only will be determined throughout the interview process depending on experience and skills.
In the rapidly evolving Web3 space, we believe that everyone is a builder. This expansive paradigm requires a range of backgrounds, talents, skills, and experiences to influence and shape the future. At Consensys, this diversity fuels our ability to shift control and redefine the realm of possibility. We are committed to ensuring that our technology empowers people and communities with economic and political agency through decentralized technologies. We welcome the range of perspectives and differences and celebrate them. We're excited to see how your unique skills as a builder can contribute to our vision, drive innovation, and help us shape a more inclusive Web3.
Consensys is an equal opportunity employer. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law. Consensys is aware of fraudulent recruitment practices and we encourage all applicants to review our best practices to protect yourself which can be found (https://consensys.io/careers/best-practices-to-avoid-recruitment-fraud/).
Apply Now:
Consensys is the leading blockchain and web3 software company founded by Joe Lubin, CEO of Consensys and Co-Founder of Ethereum. Since 2014, Consensys has been at the forefront of innovation, pioneering technological developments within the web3 ecosystem.
Through our product suite, including the MetaMask platform, Infura, Linea, Diligence, and our NFT toolkit Phosphor, we have become the trusted collaborator for users, creators, and developers on their path to build and belong in the world they want to see.
Whether building a dapp, an NFT collection, a portfolio, or a better future, the instinct to build is universal. Consensys inspires and champions the builder instinct in everyone by making web3 universally easy to use and develop on.
Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on.
You’ll get to work on the tools, infrastructure, and apps that scale these platforms to onboard one billion participants and 5 million developers. You’ll be constantly exposed to new concepts, ideas, and frameworks from your peers, and as you work on different projects — challenging you to stay at the top of your game. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies.
About MetaMask
We’re building for a future where the internet and world economy empowers people through interactions based on consent, privacy, and free association. Where both communities and individuals flourish. To accomplish that, we’re working hard to make web3 accessible for everyone around the world.
MetaMask is both a crypto wallet and a gateway to the decentralized web. Our tools help people create communities, play video games, access financial services, make payments, invest in assets, protect against economic turmoil, and more. Our browser extension and mobile platforms meet the needs of millions of users and developers across the world.
Originally a humble key manager, today MetaMask serves over 30 million monthly active users as a decentralized application development platform, an aggregator of decentralized cryptocurrency exchanges, and a decentralized identity manager.
MetaMask Card, a newly formed team, is on a mission to integrate crypto with traditional payment systems. As a Software Engineer on our team, you'll be at the forefront of developing and enhancing features that make using crypto assets outside the crypto universe seamless and intuitive.
What you’ll do
We are looking for a Software Engineer who's eager to pioneer the next wave of crypto adoption by developing innovative features for MetaMask Card and refining our current offerings.
This will include work related to the MetaMask Card offering and how we can facilitate the integration of web3 with traditional payment methods. Many of the activities we focus on are related to user experience (mobile / web / browser extension) and API integration.
You'll be responsible for developing new features and managing various partners, payment methods, and crypto assets. Your goal is to streamline the integration process while curbing the growth of technical debt. Concurrently, you'll engage in research to conceive innovative features.
Would be great if you brought this to the role
Ideal candidate
You're well-acquainted with the Ethereum ecosystem and adept at building products across mobile, web, and backend platforms. With a keen sense of user experience, you're dedicated to enhancing it at every turn.
Would be great if you brought this to the role
- 3+ years of experience as a Full Stack Software Engineer working on Production applications
- Experience with mobile development (React Native)
- Experience with web development (React)
- Experience with back-end development (Node/Express/NestJS)
- Experience working on agile projects in an Agile environment
- Experience working in CI/CD setup
- Experience working in a distributed, remote team environment
- Excellent communication skills
- Writing good technical documentation
- Located in North or South America/able to work PT or ET business hours
Bonus point for any of:
- Understanding of how traditional debit/credit card protocols work
- Understanding of the Ethereum ecosystem
- Experience with third-party integration (web views, APIs, OpenAPI specifications…)
- General interest in DevOps topics / experience with Docker and/or Kubernetes and deploying cloud infrastructure (AWS / Azure)
- Interest in streamlining and automating recurring processes
- Blockchain / smart contract development: Solidity / Ethereum, Web3.js or Ethers.js library
- Experience using or working with decentralized applications or web3 protocols
- BSc/MSc in Computer Science or related subject
Don't meet all the requirements? Don't sweat it. We’re passionate about building a diverse team of humans and as such, if you think you've got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we're ready for you to challenge our thinking on who needs to be in this role.
In the rapidly evolving Web3 space, we believe that everyone is a builder. This expansive paradigm requires a range of backgrounds, talents, skills, and experiences to influence and shape the future. At Consensys, this diversity fuels our ability to shift control and redefine the realm of possibility. We are committed to ensuring that our technology empowers people and communities with economic and political agency through decentralized technologies. We welcome the range of perspectives and differences and celebrate them. We're excited to see how your unique skills as a builder can contribute to our vision, drive innovation, and help us shape a more inclusive Web3.
Consensys is an equal opportunity employer. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law. Consensys is aware of fraudulent recruitment practices and we encourage all applicants to review our best practices to protect yourself which can be found (https://consensys.io/careers/best-practices-to-avoid-recruitment-fraud/).
Apply Now:
TinySPL
Remote
We are seeking an AI Prompt Engineer to play a pivotal role in shaping how AI interacts with users within our ecosystem. Your primary responsibility will be to design, refine, and optimize prompts that enhance the performance, accuracy, and contextual understanding of AI models aligned with our product vision.
In this role, you will work closely with our product and tech teams to understand user needs and develop custom-tailored prompts that drive engaging, insightful, and high-quality AI interactions. Your expertise will be essential in advancing our AI-powered NFT ecosystem, ensuring that our platform delivers dynamic, intelligent, and value-driven AI-generated experiences.
If you’re passionate about pushing the boundaries of Web3 and AI, we’d love to hear from you!
About Tiny SPL
Tiny SPL is a cutting-edge protocol designed to address Solana’s unique rent challenges through state compression, making the blockchain more affordable, inclusive, and efficient. Our innovative zkNFT standard drastically reduces data storage costs while enabling proof of ownership without incurring rent fees, which earned us first place at the ZK Compression sidetrack at the Solana Radar Hackathon and the support of top Solana thought leaders.
We also launched Tiny AI, an AI-powered no-code launchpad that turns ideas into fully fledged AI NFT ecosystems utilising our zkNFT standard. We are integrating AI into NFTs, creating non-fungible assets with agentic capabilities to build ecosystems that can interact, adapt, and evolve.
More about us.
Key Responsibilities
- Work collaboratively with our product development team to understand user needs and build context around AI language models
- Integrate prompts into our application, ensuring that they are cohesive with our product vision and design language
- Design, test, refine high-quality custom prompts to improve the user experience and increase engagement
- Test and debug prompts to ensure they are functioning correctly and conduct A/B testing on different prompt variations to improve accuracy and reduce hallucinations
- Continuously optimize and improve the prompts based on user feedback and usage data
- Research LLM jailbreaks, adversarial attacks, and prompt security to prevent manipulation in AI models for Web3
- Stay up-to-date with the latest developments in web3 and AI to inform prompt development and implementation e.g. ensuring AI agent chatbots are aligned with the latest developments
Key Qualifications
- Experience crafting and optimizing prompts for LLMs in production use cases.
- Strong understanding of AI models and prompt engineering techniques
- Ability to analyze AI outputs, debug failures, and implement improvements iteratively
- Fluent in English with strong communication skills
- Organized, adaptable, and able to thrive in a collaborative team setting
- Self starter with strong problem-solving skills and attention to detail
- Ability to work remotely, with a flexible schedule accommodating global time zones
- Ability to navigate ambiguity, adapt to change quickly, and thrive in a fast-paced setting
- (Bonus) Familiarity with Web3 and blockchain and has experience with on-chain AI implementations
Molecule is at the heart of the Decentralized Science (DeSci) movement where biotech and blockchain meet to democratize scientific research, earning recognition and support from key figures in the web3 world, including Vitalik Buterin, Balaji, and Juan Benet. We're known for creating VitaDAO, the first and largest biotech DAO with more than $4m in funding deployed, bio.xyz, a vital hub supporting and building biotech DAOs, the IP-NFT, a protocol bringing rights to IP and R&D data on-chain, and IPTs, ERC-20 tokens minted from IP-NFTs to allow token holders to construct and cultivate valuable IP. We’ve also recently launched launchpad, a platform to launch, discover, and fund the best projects in DeSci.
Over the past 24 months, we have raised $20+ million to build the future of decentralized biotech. Join us and contribute to a future where scientific discovery is driven by web3.
About Us
BIO.xyz is at the forefront of the Decentralized Science (DeSci) revolution. We are building the next-generation financial layer to accelerate biotech innovation by decentralizing funding, coordination, and governance of scientific IP. Our mission is to empower researchers, universities, and companies worldwide to commercialize the best science faster through blockchain technology.
With our protocol, BIO.xyz enables funding, development, and governance of tokenized scientific intellectual property (IP), fostering a thriving ecosystem of biotech DAOs and IP assets. Join us to reshape the future of science and innovation!
Your Role
At BIO.xyz, we are building the future of decentralized science (DeSci). Our platform connects autonomous agents to cutting-edge labs and smart contract-based treasuries, enabling researchers and agents to collaborate, innovate, and push the boundaries of scientific discovery. We are looking for a passionate Full Stack Developer to bring this vision to life.
What You'll Be Doing
Platform Development: Design and build scalable, modular front-end and back-end systems for the Bio Protocol platform.
Web Application: Create intuitive UIs for researchers and agents to submit tasks, manage funding, and view experiment outcomes.
Blockchain Integration: Develop and integrate Ethereum smart contracts (Layer 1 or Layer 2) into the platform for $BIO token transactions, staking, and rewards.
API Layer: Build RESTful or GraphQL APIs to connect the front-end interface with agent harnesses and external lab resources.
Database Management: Implement decentralized and traditional databases to store metadata, reputation scores, and task logs.
Security: Ensure all platform components adhere to the highest security standards, including encryption, authentication, and transaction safety.
What We’re Looking For
3+ years in fullstack development
Proven experience with blockchain technology (Solidity, Hardhat, or similar
Proficiency in JavaScript/TypeScript, Node.js, React.js/Vue.js, and Python
Experience with database systems like MongoDB, PostgreSQL, or IPFS
Knowledge of smart contract development and integration (e.g., ERC-20, staking mechanisms)
Understanding of Ethereum Layer 2 solutions (Polygon, Optimism, Arbitrum)
Enthusiasm for decentralized systems, DeSci, and innovation in research
Experience in integrating AI/ML models with web applications preferred
Contribution to open-source projects in blockchain or scientific domains is a big plus
Why Join Us?
At BIO.xyz, you’ll be part of an innovative, mission-driven startup that’s disrupting the world of decentralized science. If you’re passionate about pushing boundaries and creating real-world impact, this is your opportunity to shape the future of research and innovation.
Here, you’ll work alongside a skilled, fast-paced team that thrives on creativity, collaboration, and bold ideas. You’ll be challenged, inspired, and empowered to bring your best work every day.
HODL: You’re not just taking a job — you’re joining a movement. Every project you contribute to directly impacts the future of science and technology.
WAGMI: We reward most full time positions with token equity and give you the opportunity to co-author future DeSci standards.
Alpha: In our young, fast growing team, your voice matters. You’ll have the chance to shape not only your future but also the future of science research and innovation.
If you’re ready to take on big challenges, work with brilliant minds, and create something that matters, LFG - BIO.xyz is the right place for you!
We are an equal opportunity employer. We are committed to equality and weaving a community that values diverse perspectives and experiences and are actively seeking a diverse pool of applicants. All employment decisions are made without regard to race, colour, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law.
Apply Now:
StableUnit
Remote
What we’re looking for
StableUnitDAO is looking for a lead solidity architect for a complex DeFi protocol (not NFT)
Requirements
- DeFi solidity contracts deployed on mainnet in the last 12 months
- Knowledge of OZ libs and modern DeFi primitives
- You know system design of DeFi protocols, CDP, lending etc
- Experience with modern DeFi best practices
You must have prior experience with at least one of
- Projects with simultaneous multichain
- Projects with mission critical oracle
- Yield aggregators/optimizers
- CDP/Algo stablecoins
- Lending protocols
Detailed explanation of the protocol.
In this project you will work side by side with an architect who is ex 1inch, facebook, amazon, prizewinner of ethNY (award from Binance labs, Wyre, Matic), ethBoston (JPMorgan), ethDenver (MakerDao, Chainlink), ethLison (Gnosis), cs-national team, math degree, wrote multiple contracts with $1.1B in volume. The project itself is a winner of multe grants including Arbitrum security grant.
The protocol is 100% owned by a DAO, members of which are accomplished investors and DeFi builders, such as founders and early employees from 1inch, lobsterDAO, GearBox, PowerPool, Zerion, ZeroPool, STFX. Advisors and early investors of Binance, Matic, Bittensor, Trustwallet and others. We’re open for all formats of work, full/part-time, project-based or outstaff.
How to apply
Self-check: For some inexplicable reasons some folks lie about their experience, but is just a waste of our and your time. Be sure you know all main topics of “mastering ethereum”, read and actually understand solidity/opcode/evm specs, and can easily solve any task from https://ethernaut.openzeppelin.com.
If you are a good match:
- Send us 2 addresses of mainnet smart-contacts you developed that you are most proud of.
- We would schedule a single 30m tech interview.
- After interview, we are immediately ready to sign the paid contract for the test period/project.
For any questions https://t.me/elpinguinofrio
Hey Web3 builders! We’re looking for a UI/UX Designer with React frontend & illustration skills to help design and develop a presale token website that blends meme culture, real utility and sales focused user experiences.
If you love designing clean crypto interfaces, building interactive dApps, and creating meme-worthy visuals, this gig is for you! 🐸🔥
🛠 What You’ll Be Working On:
- Designing a fun, intuitive, and high-converting UI/UX for our presale platform.
- Creating meme-inspired branding, marketing visuals, and illustrations.
- Creating a sales focused User Interface
- Developing React-based frontend components for our presale sales page.
- Ensuring a seamless Web3 experience (wallet connections, contribution tracking, and claiming system).
- Working alongside Web3 developers & the marketing team to bring the project to life.
💡 What We’re Looking For:
✅ Strong UI/UX design skills (Figma, Adobe XD, or similar).
✅ Understanding of direct response marketing and page structures to call for action✅ Frontend development experience (React, Next.js, TailwindCSS, or Styled Components).✅ Illustration & meme design skills (ability to create viral visuals).✅ Familiarity with Web3 libraries (Ethers.js, WalletConnect, RainbowKit, etc.).✅ Experience working on presale tokens, meme coins, DeFi, or NFT projects is a huge plus.Apply Now: