Design a Nearby Drivers Service

Published 3 October 2026

System Design — Nearby Drivers

The system design round continued almost exactly where the coding discussion left off: Design a service that quickly finds nearby available drivers.

We went deeper into location updates, spatial indexing, partition boundaries, dense cities vs. suburbs, geographic sharding, driver availability, and how frequently changing coordinates should affect results.

I actually liked the continuity between the two rounds. The coding interview tested whether I understood the core search problem; the system design interview tested whether I could make the same idea work at real rideshare scale.