Requirements:

• 4+ years of professional backend development experience.
• Strong hands‑on experience with Node.js and TypeScript.
• Experience with Express.js, NestJS, or similar Node.js frameworks.
• Strong understanding of REST API design, middleware, validation, error handling, and API versioning.
• Good knowledge of PostgreSQL or other relational databases, including schema design, migrations, indexes, transactions, and query optimization.
• Hands‑on experience with TypeORM, Prisma, or similar ORM tools.
• Experience with cache management, background jobs, queues, retries, and asynchronous processing.
• Understanding of authentication and authorization mechanisms such as JWT, RBAC, OAuth, or similar.
• Experience integrating third‑party APIs and handling webhooks.
• Ability to write clean, modular, and maintainable code.
• Comfortable working with Git, pull requests, and code review...