Blockchain Developer

About This Role

This Blockchain Developer role designs, develops, tests, and maintains blockchain-based applications and decentralized solutions. The position is for a motivated candidate with a strong foundation in programming, blockchain fundamentals, smart contracts, and decentralized application (DApp) development.

Responsibilities

• Design, develop, and maintain blockchain applications and decentralized solutions
• Write, test, and deploy smart contracts using Solidity or other relevant blockchain programming languages
• Develop decentralized applications (DApps) and integrate them with blockchain networks
• Work with blockchain platforms such as Ethereum, Polygon, Hyperledger Fabric, or other relevant platforms
• Integrate blockchain applications with backend services and external APIs
• Implement wallet connectivity and blockchain transaction workflows
• Perform unit testing, debugging, and smart contract validation
• Identify potential security vulnerabilities and follow secure coding practices
• Collaborate with frontend developers, backend developers, QA engineers, and product teams
• Maintain technical documentation and contribute to code reviews

Requirements

• Strong programming knowledge in JavaScript, TypeScript, Python, or another relevant language
• Understanding of blockchain architecture, distributed ledgers, consensus mechanisms, and cryptographic fundamentals
• Knowledge of smart contracts and decentralized applications
• Basic knowledge of Solidity and Ethereum Virtual Machine (EVM) concepts for Ethereum-based roles
• Familiarity with blockchain transactions, wallets, and public/private keys
• Understanding of REST APIs and frontend/backend integration
• Knowledge of Git and software development best practices
• Strong analytical, debugging, and problem-solving skills
• B.E./B.Tech, M.E./M.Tech, MCA, or an equivalent qualification in Computer Science, Information Technology, Software Engineering, or a related discipline
• Strong interest in blockchain technology and decentralized systems
• Good programming and problem-solving skills
• Attention to detail, particularly in security-sensitive code
• Ability to work collaboratively with cross-functional teams
• Willingness to learn new blockchain platforms and development tools

Nice to have:

• Hands-on experience with Solidity, Ethereum, or Polygon
• Familiarity with development tools such as Hardhat, Foundry, Remix, or Truffle
• Knowledge of Web3.js or Ethers.js
• Experience integrating wallets such as MetaMask