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Puttalam, LK ·

Mobile Platform · Oct 2025 - Jun 2026

Weels

Weels

Two connected cross-platform apps, one for customers and one for delivery partners, on a shared backend: restaurant browsing, cart, secure checkout, live order tracking, rider assignment and run history.

Stack

  • React Native
  • Expo
  • NestJS
  • PostgreSQL
  • Real-time updates
Company
FocalDive
Role
Full-Stack Engineer
Year
2026
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Challenge

Dispatch ran over phone calls, customers had no live view of their order, and there was nothing stopping an order from being assigned twice or only partly assigned.

Approach

Pushed every rider state change to the customer app in real time and moved dispatch from phone calls into an in-system queue, with PostgreSQL relational constraints guarding order assignment.

Results

Customers track orders live, riders work from a single queue with full run history, and the database itself prevents partial or duplicate assignments.