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Freelance Frontend

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

EoT Labs and flagship project peaq were founded under the belief that a better trajectory for humanity exists. We’re focused on harnessing the power of modern technology to build a global, borderless, machine economy that works for all humans on earth – the 100%, not just the 1%.Today, more than 20 industries are already being positively shaped by this next generation of apps built on the peaq network. This is an opportunity to join a team of performance-driven entrepreneurs, engineers, and creatives, on a mission to unlock the Age of Abundance.Key Responsibilities:<ul><li>Design, develop, and maintain Web3 applications leveraging blockchain technologies.</li><li>Implement smart contracts for NFTs (ERC-721, ERC-1155), ERC-20 tokens, and DeFi protocols.</li><li>Develop and optimize backend services using PHP (Laravel), Node.js, and Python.</li><li>Build and integrate front-end applications using Next.js and React.</li><li>Work with the Polkadot ecosystem, including Substrate-based blockchains.</li><li>Collaborate with DevOps teams to ensure high availability and security of blockchain applications.</li><li>Stay updated with the latest trends in Web3, blockchain security, and smart contract development.</li></ul>Qualifications & Requirements:<ul><li>5+ years of experience in software development with a focus on Web3.</li><li>Strong knowledge of blockchain fundamentals, smart contracts, and cryptographic principles.</li><li>Proficiency in PHP (Laravel), Node.js, and Python.</li><li>Experience with Next.js for front-end development.</li><li>Expertise in Ethereum standards (ERC-20, ERC-721, ERC-1155) and NFT marketplace development.</li><li>Experience working with Polkadot and Substrate-based blockchains.</li><li>Strong understanding of API integrations, WebSockets, and event-driven architectures.</li><li>Experience with IPFS, decentralized storage, and smart contract security best practices.</li><li>Knowledge of cloud services such as AWS, GCP, or Azure.</li></ul>

Senior Software Engineer (Freelance)

We are looking for an experienced Frontend developer responsible for the development of new Blockchain frontend services. In this project, you can challenge yourself with new technology to promote your career growth and join us in the SCRUM/Agile team to improve features to match with the market’s demand. You will have a deep understanding of the business process and have a chance to participate in alleviating the services as well as the delivery system.Responsibility<ul><li>Work closely with Product Manager, Product Designer, and other developers to deliver the product</li><li>Resolve challenging technical issues</li><li>Design solutions to provide what service needs</li><li>Build, test, deploy and improve the quality of the software</li><li>Contribute improve toolset and development experience</li></ul>Required skills and experiences<ul><li>3+ years of relevant experience</li><li>Experience in Javascript and Typescript build and bundle tools (like Webpack, NextJS, Parcel etc)</li><li>Experience with writing Unit tests, integration test, and end-to-end test using frameworks like (Jest, AVA, Cypress, Playwright, etc)</li><li>Strong knowledge of HTML/ CSS/ JS</li><li>Experience working with React, Redux, Redux-saga, NextJS</li><li>Experience in customizing chart formats with libraries such as ChartJS, Apexcharts,......</li><li>Strong experience in styling and responsive</li><li>Understand HTTP, Websocket and Web security protocols</li><li>Have a strong architecture skill, stand on your own, make and protect your own architecture decisions.</li><li>Have an open mind, can-but-not-blindly-do attitude. You have a "can-do" attitude, which is already very cool, but you also must be able to pause and ask "should we do it"</li><li>Understand the value of writing test</li><li>Professional and be a TEAM PLAYER, because we can move nowhere without a team.</li><li>Passionate with coding and blockchain technology</li><li>Willing to learn new technologies</li><li>Willing to work with the team like a family</li><li>Contributing to the team to reach the goal</li></ul>Preferred skills and experiences<ul><li>Have experience in Blockchain</li><li>Nextjs</li></ul>PerksAs a tech company, our company culture always delivers high-quality products with the greatest talent who are eager to succeed, with a vibrant work environment, and prioritize work-life balance.<ul><li>We convert our industry-leading research and knowledge into your power. This is the best place to gain your knowledge and experience in fintech technologies.</li><li>Excellent and competitive salary package</li><li>Opportunities to gain hands-on experience in cutting-edge technologies.</li><li>M1 Macbook provided & widescreen</li><li>16 annual leave days, social insurance according to Vietnamese laws</li><li>Annual performance review</li><li>13-month salary</li><li>Working hours: 9 AM - 6 PM, Mon - Fri</li><li>Unlimited potential for career growth because we are fast-growing</li><li>Insurance: Social Insurance, PVI – Health Insurance</li><li>Opportunity to work onsite at the Singapore office along with a chance to meet project clients for business discussion.</li></ul>Company DescriptionTreehouse is a digital assets data firm focused on institutional-grade portfolio, protocol, and market analytics. The company is headquartered in Singapore and backed by leading traditional VC and Web3 firms such as Mirana Ventures, Lightspeed, MassMutual Ventures, Binance, LeadBlock Partners, Global Founders Capital, Jump Capital, Wintermute, GSR, Coinhako, Bitpanda, Pintu, AlphaLab Capital, Pulsar Trading, Portofino, senior executives from the SoftBank Vision Fund, and more.

Frontend Developer (Freelance)

<ul>
<li>JOB TYPE: Freelance, Contract Position (no agencies/C2C - see notes below)</li>
<li>LOCATION: Remote - Work from anywhere </li>
<li>HOURLY RANGE: Our client is looking to pay $40 – $50/hr</li>
<li>ESTIMATED DURATION: 40h/week - Long term</li>
<li>BRAINTRUST JOB ID: <a href="https://app.usebraintrust.com/jobs/9540/?utm_channel=jobboard&utm_source=linkedin&utm_medium=linkedin" rel="noopener noreferrer nofollow ugc" target="_blank">9540</a></li>
</ul>
THE OPPORTUNITY






<h3>Requirements</h3>


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Bachelor's degree in Computer Science or a related field (preferred).
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Proven experience as a Front-End Developer with a focus on Web3 development.
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Understanding of blockchain technology / tokens: ERC721, ERC1155 + ERC20
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Strong proficiency in TypeScript for front-end development.
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Experience with Web3 integration libraries, including ether.js, wagmi.so, and thirdweb.
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Proficiency in three.js for 3D graphics development.
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In-depth knowledge of HTML, CSS, and JavaScript.
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Strong problem-solving and debugging skills.
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Excellent communication and collaboration abilities.
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Ability to work in an agile development environment.
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<h3>What you’ll be working on</h3>


About Us:
At Bevalty, we are pioneering the alcoholic beverage industry with a new, digital loyalty rewards platform. Our goal is to help brands build compelling loyalty programs that facilitate direct and rewarding relationships with their consumers (never been done before at scale) and to achieve that, we are building our product from the ground up. The company will scale through a SaaS model (B2B) and get consumer distribution through brand relationships (B2B2C), making it a uniquely scalable business, compared to pure D2C.
We are looking for a seasoned Front End Developer who thrives in fast-paced environments, has some experience in building blockchain token-based offerings, understands the unique challenges and opportunities of a fresh code base, and has a proven track record of directly managing engineers.

Job Overview:
As a Senior Front-End Developer at Bevalty, you will play a pivotal role in creating cutting-edge front-end solutions for our Web3 applications. You will be responsible for developing user interfaces that seamlessly integrate with blockchain technologies using TypeScript and leveraging Web3 integration libraries like ether.js, wagmi.sh, and Thirdweb. Additionally, you will have the opportunity to work with 3D graphics using three.js to create immersive and visually stunning user experiences.
Key Responsibilities:
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Front-End Development: Develop and maintain user interfaces for our Web3 applications, ensuring a seamless and user-friendly experience.
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Blockchain Integration: Integrate blockchain technology into the front-end using Web3 libraries such as ether.js, wagmi.so, and thirdweb to enable decentralized functionality.
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3D Graphics: Utilize three.js to create interactive and visually engaging 3D graphics for immersive user experiences.
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Cross-Platform Compatibility: Ensure that front-end solutions work effectively on various browsers and devices.
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Performance Optimization: Optimize front-end code for speed, responsiveness, and efficiency.
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Testing and Debugging: Conduct thorough testing and debugging to identify and resolve issues promptly.
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Documentation: Create and maintain documentation for front-end code and integration processes.
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Collaboration: Work closely with back-end developers, product managers, and other team members to achieve project goals and meet deadlines.








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Job Title	Company Name	Salary	Location	Tags
V Web3 Frontend Engineer - React/TypeScript	VostoEmisio	5k/month	Remote	DEXDeveloperWeb3Remote
Senior Software Engineer (Freelance)	EoT Labs		Remote	RemoteWeb3DeveloperFreelance
Frontend Developer (Freelance)	Treehouse		📍 Ho Chi Minh City, Viet Nam	Web3TradingResearchProduct Manager
Senior Front End Developer - Freelance [Remote]	Braintrust			RemoteWeb3FreelanceDeveloper

Web3 Freelance Frontend Jobs

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Web3 Frontend Engineer - React/TypeScript

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