Blockchain Developer (Solidity + Web3 + MERN Stack)

About the Role

We are looking for an experienced Blockchain Developer to join our development team and work on decentralized applications (DApps) and smart contract-based systems. You will be responsible for building and integrating blockchain-based features into modern web applications using Solidity, Web3 technologies, and MERN stack (React, Node.js, Express, MongoDB).

Responsibilities

• Develop and deploy smart contracts using Solidity
• Build and maintain Web3 integrations (ethers.js / wagmi / web3.js)
• Implement wallet connection (MetaMask and similar wallets)
• Develop responsive frontend interfaces using React + TailwindCSS
• Work with backend APIs using Node.js / Express
• Integrate blockchain data with backend systems when needed
• Ensure security, efficiency, and scalability of smart contracts
• Collaborate with UI/UX and backend developers

Required Skills

• Strong experience in Solidity smart contract development
• Experience with Web3 libraries (ethers.js, wagmi, or web3.js)
• Solid understanding of Ethereum / EVM ecosystem
• Experience with React.js and TailwindCSS
• Knowledge of Node.js, Express, MongoDB (MERN stack)
• Experience with wallet integrations (MetaMask, WalletConnect)
• Understanding of smart contract security best practices

Nice to Have

• Experience with Hardhat or Foundry
• Knowledge of DeFi, NFTs, or staking systems
• Experience deploying to testnets (Sepolia, Polygon, etc.)
• Familiarity with TypeScript
• Experience with CI/CD for smart contracts

Location

Remote, United States