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KoinBX - Technical Lead - Node.js / NestJS / .Net

KoinBX - Technical Lead - Node.js / NestJS / .Net

KoinBXBangalore
30+ days ago
Job description

Key Responsibilities :

  • Architecture Ownership : Design and maintain scalable and secure backend and database architecture for the exchange.
  • Database Engineering : Model complex relational and NoSQL data structures (MySQL / MSSQL, MongoDB), optimize queries, and ensure data consistency and performance under heavy load.
  • Blockchain Integration : Build, maintain, and improve APIs / scripts for handling deposits, withdrawals, and transaction tracking for BTC, ETH, TRON, BNB, and other networks.
  • API Design : Develop and review RESTful APIs for frontend / mobile and third-party integrations.
  • System Performance : Analyze bottlenecks and optimize backend performance across all modules (trade engine, wallet, KYC, user management).
  • Solution Design : Translate business problems into technical solutions and own the end-to-end implementation plan.
  • Code Review & Dev Guidance : Provide direction and support to backend developers; perform technical reviews to maintain code quality and best practices.
  • Security & Compliance : Ensure solutions are secure, adhere to industry compliance (CERT-In, ISO, etc.), and protect user data and assets.
  • Documentation : Maintain architectural and operational documentation.

Must-Have Skills

  • Strong backend development experience in Node.js / NestJS / .NET / C#.
  • Solid knowledge of MySQL / MSSQL / MongoDB, indexing, triggers, stored procedures, and optimization.
  • Experience integrating with blockchain nodes (e.g., Web3.js, Nethereum, TronWeb) for ERC20 / TRC20 / BEP20 token operations.
  • Understanding of asynchronous processing, microservices, and event-driven architecture (Kafka preferred).
  • Deep understanding of REST APIs, authentication flows, and secure key management.
  • Experience with Azure infrastructure.
  • Exposure to frontend decisions, including Next.js / React-based web applications as well as Native Android and iOS applications, with the ability to guide integration and architectural consistency across platforms.

    • Good to Have

  • Previous experience working on a live crypto exchange.
  • Experience with matching engines, market-making systems, and trading performance tuning.
  • Familiarity with DevOps workflows, CI / CD, and monitoring tools (Grafana, Prometheus, Azure Insights).
  • Knowledge of message queues, WebSocket integrations, and real-time updates.

    • (ref : hirist.tech)

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    Technical Lead • Bangalore