Senior Fullstack Developer (Web3)

Senior Web3 / Full-Stack Developer (Blockchain Engineer)

Engagement: 6-month contract (with potential for full-time hire)

Location: 100% Remote (any timezone)

About the Role:

We are looking for a Senior Web3 Developer to join our team and work on internal platforms that power next-generation decentralized applications. This is a hands-on engineering role where you will design, build, and maintain backend services, blockchain-integrated systems, and frontend components.

Responsibilities:

• Develop and maintain internal platforms using Node.js on the backend
• Participate in frontend development for dApp interfaces and admin dashboards
• Integrate with Ethereum, Polygon, and BSC mainnets and testnets
• Implement ERC-721 / ERC-1155 NFT standards and related workflows
• Enable wallet connections via MetaMask, WalletConnect v2, and Coinbase Wallet SDK
• Build and optimize decentralized application (dApp) workflows
• Collaborate on smart contract interactions (reading/writing data, event listening)
• Ensure security, performance, and scalability of blockchain-integrated systems

Must-Have:

• 3-5+ years of full-stack engineering experience
• 2+ years of hands-on experience with Node.js (backend APIs, microservices)
• Proven experience with Ethereum, Polygon, and BSC (mainnet + testnets)
• Deep understanding of ERC-721 and ERC-1155 NFT standards
• Experience integrating with MetaMask, WalletConnect v2, and Coinbase Wallet SDK
• Previous work on Web3 / blockchain products - not just crypto trading, but actual dApp or protocol development

Nice-to-Have:

• Experience with frontend frameworks (React / Next.js / Vue)
• Smart contract development (Solidity)
• Familiarity with The Graph, IPFS, or similar decentralized storage
• Knowledge of TypeScript, Docker, and CI/CD pipelines

Reasons why this job would be interesting to you:

• Competitive hourly rate ($75+)
• Fully remote, work from anywhere
• Contract-to-hire path with long-term potential
• Direct access to leadership and product strategy
• Work on real Web3 infrastructure, not just POCs

If you are interested in the vacancy, please contact me! <контакт доступен только на сайте источника>