We are looking for a highly skilled Senior Node.js Developer to join our team for a blockchain-based project. You will be working on cutting-edge backend systems that support smart contracts, decentralized applications (dApps), and secure transaction layers. Prior experience in FinTech or working with financial transaction systems will be a major plus.
Key Responsibilities
• Design, develop, and maintain scalable backend services using Node.js.
• Integrate with blockchain platforms (Ethereum, Polygon, Solana, etc.) via APIs and SDKs.
• Develop secure RESTful and GraphQL APIs for decentralized applications.
• Collaborate with smart contract developers to interface backend with on-chain logic.
• Handle cryptographic operations such as wallet management, key storage, and digital signatures.
• Implement security best practices for data handling, API access, and user authentication.
• Optimize system performance and scalability for high-volume transaction flows.
• Participate in code reviews, architecture discussions, and technical decision-making.