We're looking for a frontend developer to help build a cross-chain decentralized exchange (DEX) UI. The ideal person has 3–5+ years of experience with React, Next.js, and TypeScript, and has worked on Web3 apps before. They should be comfortable integrating wallets like MetaMask, WalletConnect, and Coinbase using libraries like Wagmi, RainbowKit, or Web3Modal. Strong knowledge of Ethers.js is key for handling Ethereum and EVM-based chains. Bonus points if they’ve worked with Substrate/Polkadot.js, since the DEX backend is built on that stack. They should understand how wallet connections, signatures, RPCs, and chain switching work, and ideally be able to troubleshoot cross-chain quirks. Experience with decentralized protocols and privacy-focused coins like Monero or Bitcoin is a plus. We want someone who writes clean, maintainable code, is security-conscious (especially around wallet/key handling), and can collaborate with backend and design teams. Experience with Tailwind or similar CSS frameworks is great. It’s a plus if they’ve built or contributed to crypto DEXs, trading UIs, or DeFi dashboards.Reach out and we’ll brief you on the stack, scope, and product vision.

Web3 Frontend Engineer - React/TypeScript

Binance is a leading global blockchain ecosystem behind the world’s largest cryptocurrency exchange by trading volume and registered users. We are trusted by over 250 million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance to education, research, payments, institutional services, Web3 features, and more. We leverage the power of digital assets and blockchain to build an inclusive financial ecosystem to advance the freedom of money and improve financial access for people around the world.About Binance Collaboration SuiteCollaboration Suite is a comprehensive set of internal systems at Binance, encompassing Binance main site's backend management system, user-facing customer service entry & agent support platform, employee management system, reimbursement system, and more. It aims to enhance collaboration efficiency among internal employees. The core objective is to reduce information silos, streamline workflows, and empower teams to achieve goals more effectively by integrating diverse collaborative functions.<h3>Responsibilities</h3><ul><ul><li>Testing Execution & Automation</li>Lead functional testing activities, including requirement analysis, test case design, and execution, to ensure system quality meets delivery standards.Develop and maintain front-end automation scripts using Cypress framework, driving improvements in test automation coverage.Design and implement specialized testing solutions (e.g., API automation, performance testing) based on business scenarios.<li>Cross-Team Collaboration</li>Serve as a core QA member, collaborating closely with Product Managers (PMs) and developers to facilitate requirement reviews, defect resolution, and risk mitigation.Coordinate end-to-end integration testing with third-party teams to ensure quality delivery of external modules.<li>Issue Triage & Process Optimization</li>Investigate and troubleshoot issues in production/test environments, performing preliminary root-cause analysis via log reviews or code-level debugging.Own and continuously improve release management processes (SOPs) to enhance deployment efficiency and stability.<li>Remote Work & Autonomy</li>Demonstrate self-motivation and time management skills to prioritize tasks effectively in a remote environment.Maintain timely communication during work hours to ensure transparency and alignment with team goals.</ul></ul><h3>Requirements</h3><ul><ul><li>Core qualifications:</li>1. Education & Experience<li>Bachelor’s degree or higher in Computer Science, Software Engineering, or a related field.</li><li>6+ years of QA experience, including 2+ years in a Senior QA role with exposure to complex business systems.</li><li> Proficient in mini-program debugging tools (e.g. WeChat DevTools) and mobile testing frameworks (e.g. Appium/Detox).</li>2. Technical Skills<li>Proficiency in at least one programming language (Java/Python) and frameworks like TestNG/Pytest for automation development.</li><li>Hands-on experience with Cypress for front-end automation; familiarity with modern front-end stacks (React/Vue) is a plus.</li><li>Practical knowledge of API testing tools (Postman, JMeter) and CI/CD pipelines (Jenkins, GitLab CI).</li>3. Soft Skills<li>Strong communication skills to articulate technical risks and collaborate with cross-functional stakeholders.</li><li>Analytical thinking with the ability to design test scenarios from user perspectives and prioritize critical issues.</li><li>Leadership experience in mentoring junior QA members or optimizing team-wide testing processes.</li>4.  Remote Work Competencies<li>Self-driven with proven ability to deliver high-quality outcomes autonomously in a flexible work environment.</li><li>Preferred Qualifications:</li>1. Exposure to non-functional testing (security, performance, chaos engineering).2. Knowledge of IM protocols (e.g. WebSocket, <a href="http://Socket.IO" rel="noopener noreferrer nofollow ugc" target="_blank">Socket.IO</a>).3. Prior work on crypto wallet, DAO, or decentralized identity chat products.4. Experience testing microservices architecture.</ul></ul>Why Binance• Shape the future with the world’s leading blockchain ecosystem• Collaborate with world-class talent in a user-centric global organization with a flat structure• Tackle unique, fast-paced projects with autonomy in an innovative environment• Thrive in a results-driven workplace with opportunities for career growth and continuous learning• Competitive salary and company benefits• Work-from-home arrangement (the arrangement may vary depending on the work nature of the business team)Binance is committed to being an equal opportunity employer. We believe that having a diverse workforce is fundamental to our success.By submitting a job application, you confirm that you have read and agree to our <a href="https://www.binance.com/en/candidate/privacy/notice" rel="noopener noreferrer nofollow ugc" target="_blank">Candidate Privacy Notice</a>.

Senior QA Engineer (Collaboration Suite)

Asia/Taipei

Front-End Web3 Developer (WordPress + WalletConnect)Type: Project-Based / Paid Per TaskLocation: RemoteRate: $6,000–$9,000/monthResponsibilities:<ul><li>Build ElboCoin.com (WordPress + custom wallet connect logic)</li><li>Develop token-gated content sections (Founders Lounge, Merch Store)</li><li>Integrate Shopify + Coinbase Commerce</li><li>Optimize for ease of use (non-tech user focused)</li></ul>Requirements:<ul><li>React or Webflow front-end with WordPress plugin knowledge</li><li>Strong Web3.js / Ethers.js skills</li><li>Shopify and crypto commerce experience</li></ul>

Front-End Web3 Developer

About SapienWe're not just building a company; we're creating new opportunities in AI development and data labeling. You'll play a key role in shaping the future of how humans and AI collaborate.Join a disciplined and rigorous team building cutting-edge technology featuring gamification, beautiful UI, and a clean, well-documented codebase.The Role: Staff Web3 EngineerSapien is seeking a Staff Web3 Engineer to take a lead role in architecting and accelerating the development of our blockchain-integrated systems. This is an ideal opportunity for a senior engineer who thrives in a fast-moving, remote-first environment and values both ownership and collaboration.We’re looking for a full-stack expert with deep experience in smart contract development (EVM) and web2/database-driven applications. You’ll help drive technical strategy, mentor developers, and ensure smooth integration between smart contracts, APIs, and frontend experiences.Key Responsibilities:* Architect, build, test, and deploy smart contracts to testnets and mainnets* Lead web3 integrations with partners and contribute to go-to-market efforts alongside the business team* Guide and review React frontend implementations that interface with smart contracts* Ensure a clean, maintainable, and well-tested codebase* Support cross-functional teams with technical decision-making and unblock teammates when neededAn ideal candidate will:* Operate independently and confidently at a senior level, while collaborating effectively with designers, engineers, and product leads* Have deep experience with smart contract development (Solidity or similar) and familiarity with security best practices* Be highly proficient in full-stack engineering, including backend development and working with relational databases like Postgres* Have a strong eye for UI/UX and be able to make informed design and implementation decisions when specs are incomplete* Know how to balance speed and quality, delivering clean code that’s tested and documented* Understand the performance implications of frontend/backend architecture and build responsive, performant applications* Be a clear communicator who knows when to ask questions, raise flags, or offer guidanceWhy Join Sapien?At Sapien, you’ll be part of a vibrant and innovative team dedicated to making a real impact in the AI ecosystem. We value creativity, autonomy, and craftsmanship. As a Staff Engineer, your contributions will shape the direction of our technology and culture. If you’re passionate about building scalable, elegant systems at the intersection of web2 and web3, we’d love to hear from you.Apply now to become a key player in advancing Sapien’s mission!

Staff Web3 Engineer

<h3>About Mangrove</h3><a href="https://mangrove.exchange/" rel="noopener noreferrer nofollow ugc" target="_blank">Mangrove</a> is an order book DEX allowing liquidity providers to attach smart contracts to their offers. Linking arbitrary code with on-chain trading unlocks a new design space for DeFi. We are backed by some of the best investors in the ecosystem and as a team, we value expertise, creativity, autonomy, and knowledge sharing.🐒 Mangrove is looking to hire a senior Frontend/Blockchain Developer. This is a full-time position in Paris, however, remote can be an option.<h3>What you’ll do</h3>As a Frontend Developer at Mangrove, you will play a crucial role in building and optimizing the user interface for our decentralized exchange (DEX). You will be responsible for crafting seamless, intuitive, and high-performance experiences that enhance the usability and functionality of our platform.We are looking for someone who can bridge design and development, with a strong understanding of DeFi, DEXs and advanced trading interfaces. They may also occasionally work on other aspects of the project if needed.<h3>Requirements:</h3><ul><li>Extensive experience in React, and modern frontend frameworks</li><li>Strong experience building complex Web3 applications and interacting with smart contracts</li><li>Deep understanding of DEX mechanics, perpetual trading, and DeFi protocols</li><li>Experience in optimizing UI/UX for performance and accessibility</li><li>Familiarity with blockchain infrastructure and EVM interactions</li><li>Experience operating a live protocol/product</li><li>Able to work within the CET (Central European Time) timezone for team meetings</li><li>Excellent verbal and written communication in English</li></ul><h3>Bonus points:</h3><ul><li>Experience with backend integrations and full-stack development</li><li>Passion for DeFi, trading, and Web3 innovation</li><li>Have teamwork, communication and organizational skills</li><li>Willingness to constantly learn & improve, challenging yourself to stay at the top of your game</li></ul><h3>What does Mangrove offer?</h3><ul><li>Significant ownership and autonomy in shaping our frontend and user experience</li><li>Competitive annual salary + tokens</li><li>Flexible schedule and remote-friendly environment</li><li>The opportunity to work with a highly experienced and diverse team</li><li>Team retreats held several times a year around the world</li><li>Conferences and continuous learning opportunities</li><li>Career growth and professional development within a cutting-edge DeFi project</li></ul><h3>Want to apply?</h3>Fast & efficient hiring process :<ol><li>Apply – Send us any project you’re proud of (GitHub, portfolio, CV, etc.)</li><li>Intro call – 20-min chat to discuss your experience & fit.</li><li>Technical test – A hands-on challenge tailored to frontend Web3 development.</li><li>Test review & final interview – Meet the team and dive deeper.</li><li>Offer & welcome to the team!</li></ol>📩 Send your application to<h3>Links</h3><ul><li><a href="https://www.mangrove.exchange/" rel="noopener noreferrer nofollow ugc" target="_blank">Website</a></li><li><a href="https://docs.mangrove.exchange/" rel="noopener noreferrer nofollow ugc" target="_blank">Documentation</a></li><li><a href="https://twitter.com/MangroveDAO" rel="noopener noreferrer nofollow ugc" target="_blank">Twitter</a></li><li><a href="https://www.linkedin.com/company/mangrovedao/" rel="noopener noreferrer nofollow ugc" target="_blank">LinkedIn</a></li><li><a href="https://github.com/mangrovedao" rel="noopener noreferrer nofollow ugc" target="_blank">GitHub</a></li></ul><h3>Equal Opportunity</h3>Mangrove is committed to fostering a diverse and inclusive work environment. We encourage all types of profiles to apply and do not discriminate on the basis of race, national origin, religion, gender, sexual orientation, marital status, disability, social origin, or age.

Frontend / Blockchain Developer

Central European Time

Remote Web3 Frontend jobs and other crypto companies

Page 2. July 2025. Remote Web3 Frontend Jobs. Apply for. careers at and other crypto companies... Apply today!

Job Title	Company Name	Salary	Location	Tags
V Web3 Frontend Engineer - React/TypeScript	VostoEmisio	5k/month	Remote	DexDeveloperWeb3Remote
Senior QA Engineer (Collaboration Suite)	Binance		📍 Taiwan, Taipei, Asia	Web3ResearchDeveloperTrading
Front-End Web3 Developer	ElboCoin,LLC	6k-9k/month	Remote	RemoteDeveloperWeb3Frontend
Staff Web3 Engineer	Sapien		Remote	RemoteWeb3DeveloperEngineering
Frontend / Blockchain Developer	Mangrove	60k-150k/year	📍 Paris or Remote (Europe)	UI/UXFull TimeFrontendDeFi

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Web3 Frontend Engineer - React/TypeScript

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