Andrés Henao

I designed and built the TransCaribe App end to end: a NestJS REST API, a React web app, and a native Android app sharing one backend. I integrated Wompi/Nequi payments with transaction verification, and added JWT authentication and real-time updates with Socket.IO. I also built single-use QR passes, mapped 556 official transit stops, and wrote automated tests for critical flows. As a Systems and Development Analyst at Mayor's Office of Cartagena, I supported institutional software development and website security; as a freelance web developer for City Spa, I updated the website and managed its WordPress setup.