Service: I will build your REST API in Node.js and TypeScript

I design and build production-ready REST APIs using Node.js, TypeScript, and Express/NestJS, with PostgreSQL or MongoDB as the data layer. 8+ years building backend systems for US enterprise clients (eBay, Cefaly, Sunrun). Includes clean architecture, authentication (JWT/OAuth 2.0), automated testing (Jest), and API documentation. Perfect for startups needing a solid, scalable backend foundation.