Real-time fleet visibility for 12,000 vehicles
Replaced legacy SAP layer with a modern event-driven core.
- Custom Software
- DevOps & Cloud
- TypeScript
- Node.js
- Postgres
- Redis
- GCP
November 4, 2025
The starting point
Atlas relied on a 14-year-old SAP module for fleet tracking. Reports were nightly, latency was measured in minutes, and the licence cost grew every year.
The team needed real-time visibility for customers without ripping out integrations to dispatch and billing.
How we worked
We modeled the fleet as a stream — every position, ignition, and door event flows through a Pub/Sub backbone.
Strangler-fig migration kept SAP authoritative for finance while shifting visibility, alerting, and reporting to the new platform.
Customer dashboards use the new event API directly — they're now a feature instead of a quarterly report.
What changed
Customers now see vehicle status in under two seconds. Inbound 'where's my truck?' tickets dropped 67%.
The SAP licence was sunsetted at renewal — saving $2.1M annually.
Engineering velocity quadrupled because the team is no longer fighting batch jobs.
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Posted 2025-11-04 by Official Byte. Read more on case studies.