Mobile App Backend Stabilization Using Firebase

This project involved stabilizing and production-readying a mobile app originally built on Replit using AI-generated code. The app relied on Replit’s authentication system and a default mock database, which caused authentication and data consistency issues as the project evolved.

I refactored the authentication flow, resolved multiple auth-related errors, and migrated the backend from Replit’s mock database to Firebase. This required updating and re-wiring all API endpoints to ensure secure authentication, reliable data persistence, and compatibility with Firebase’s structure.

The result was a stable, fully working backend that matched the client’s expectations and supported their app reliably going forward. The client was satisfied with the outcome and the improved system behavior.

Skills demonstrated: Authentication systems, API refactoring, Firebase integration, backend debugging, AI-generated code hardening