MERN & Blockchain Backend Developer

Suffescom Solutions Pvt is seeking an experienced Blockchain and Node.js Developer to build scalable backend systems and decentralized applications. You'll bring strong hands-on expertise in both backend application development using Node.js and blockchain technologies, working across smart contracts, dApp integrations, and Web3 solutions.

What you'll do

• Design, develop, and maintain scalable backend applications using Node.js and Express.js
• Build and manage RESTful APIs, microservices, and backend services
• Develop, test, deploy, and maintain smart contracts on blockchain networks
• Integrate blockchain functionality with backend applications and third-party services
• Work with Web3 technologies to interact with decentralized networks and wallets
• Design secure and efficient blockchain-based solutions for business requirements
• Manage and optimize database systems using MySQL, MongoDB, and other data stores
• Implement authentication, authorization, and role-based access mechanisms
• Handle error logging, monitoring, debugging, and performance optimization
• Collaborate with frontend, QA, DevOps, and product teams throughout the development lifecycle
• Participate in code reviews, architecture discussions, and technical planning

What you bring

• 3+ years of hands-on experience in Node.js development
• Strong expertise in Express.js and backend architecture
• Experience designing and developing RESTful APIs
• Strong knowledge of asynchronous programming, event loop, and performance optimization
• Experience with MySQL and MongoDB
• Good understanding of authentication mechanisms including JWT and RBAC
• Familiarity with Git and version control workflows
• Experience with Docker and deployment processes
• 2+ years of hands-on experience in blockchain development
• Strong understanding of blockchain fundamentals, consensus mechanisms, and decentralized systems
• Hands-on experience with Web3.js, Ethers.js, or similar blockchain libraries
• Knowledge of wallet integrations such as MetaMask and WalletConnect
• Understanding of smart contract security, gas optimization, and auditing best practices
• Experience interacting with blockchain networks through RPC providers and APIs