Darb — Ride-Hailing Platform Stabilization

The challenge & the solution

Drivers and riders on Darb were missing push notifications — a critical failure for a ride-hailing app. I traced the Firebase notification failures in the backend, fixed them, and stabilized the system: 35% more stable and 50% fewer errors.

How I built it

1. 01 Reproduced and traced the notification failures
2. 02 Fixed the Firebase integration in the backend
3. 03 Stabilized error handling and monitoring