Find the Best web3.js Jobs
Check out a sample of the 157 web3.js jobs posted on Upwork
Web3/Blockchain Engineer
Hourly ‐ Posted 2 days agoHours needed
Duration
Experience level
We are looking for an experienced Web3/Blockchain Engineer to help us build decentralized applications and smart contracts. You should…
Senior Full-Stack Developer (Claude Code) - Trading Card Portfolio & Pricing Platform
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We’re building Karton - a portfolio and market intelligence platform for collectible cards, starting with Pokémon. We already have a w…
Solidity Developer
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking a skilled Solidity Developer to design, develop, and deploy smart contracts on blockchain platforms. You will have exper…
WebGL/3D Web Game Developer
Fixed-price ‐ Posted 1 day agoFixed-price
Experience level
Seeking an experienced WebGL/Three.js developer 3D drag racing experience integrated with our custom Shopify Plus storefront for "The S…
Senior engineer to own a shipping desktop product — ongoing
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Firms in law and finance can't put their documents into ChatGPT or Claude, so they're locked out of modern AI. We fix that: our desktop…
Tech Lead / Blockchain Developer
Hourly ‐ Posted 2 days agoHours needed
Duration
Experience level
We're looking for a Tech Lead / Blockchain Developer to help us build a decentralized education platform from scratch. This isn't just…
RWA dApp Developer
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Looking for an experienced RWA and Web3 developer. Building a decentralized application for a real-world asset tokenization platform.…
Web3 Full Stack & Smart Contract Development
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
Are you passionate about blockchain technology and building products that operate on decentralized networks? Join our team as a Web3 E…
Blockchain Engineer for AI Marketplace
Hourly ‐ Posted 1 day agoHours needed
Duration
Experience level
We are seeking an expert blockchain engineer to develop a blockchain marketplace with AI integration. The project involves creating a p…
Full-Stack Web3 Developer for Crypto Platform
Fixed-price ‐ Posted 1 day agoFixed-price
Experience level
We are seeking an experienced Full-Stack Web3 Developer to create a crypto investment platform using Next.js, Python/FastAPI, and Ether…
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