I design, build and integrate reliable backend services and REST APIs using Node.js, Express, TypeScript and SQL databases.

I can help you build a new backend, extend an existing API, connect third-party services, troubleshoot integrations or improve backend code that has become difficult to maintain.

• REST API design and development • Node.js / Express backend services • TypeScript implementation • PostgreSQL and SQL integration • Third-party API integrations • Request and response validation • Business logic and reusable validation services • Error handling and debugging • API testing with Postman • Refactoring and improving existing backend code

I have professional experience working with enterprise applications, complex business rules, customer-management workflows, transactional processes, external integrations and production debugging.

My approach is to understand the existing system and business requirements first, then build a solution that is clean, maintainable and easy to extend.

If you already have an API or backend that needs improvement, I can also review the current flow and help identify the best implementation approach.