The challenge

Replace a manual dispatch and tracking system with an event-driven real-time platform, integrate with the retail client's order management system via API, and migrate all existing driver and route data, without disrupting active deliveries.

What we built

Literesults deployed a 3-person engineering team with a dedicated PM. We built an event-driven backend on Node.js with WebSocket-based real-time tracking, a driver mobile interface in React Native, a dispatcher dashboard, and a REST API for the retail client integration. The old system ran in parallel for 2 weeks during rollout.

How we worked

  1. Week 1

    System design and data audit

    Mapped all existing routes, driver records, and manual workflows. Defined event schema for real-time updates.

  2. Weeks 2–4

    Core platform build

    Event-driven backend, driver app, dispatcher dashboard, and WebSocket tracking engine.

  3. Week 5

    Retail API integration

    REST API built and certified against retail client spec. End-to-end integration testing completed.

  4. Week 6

    Parallel rollout and handover

    System ran alongside legacy for 5 days. Old system decommissioned. Full documentation and operations handover.

Stack

Node.js WebSockets React Native PostgreSQL Redis Docker AWS REST API

We verified three candidates in under ten minutes. One had a certificate from another bootcamp that turned out to be completely fabricated. Literesults caught it immediately.

Kwame Mensah Head of Engineering, SwiftHaul Logistics