Engineering Deep Dive

2 articles to help you prepare for your next interview.

DoorDash Food Delivery Platform at Last-Mile Scale
2026-03-30
A technical breakdown of how DoorDash orchestrates a three-sided marketplace across customers, restaurants, and Dashers — covering the assignment problem.
Lyft Rideshare Marketplace Infrastructure
2026-03-30
A technical exploration of how Lyft powers real-time driver-rider matching, ETA prediction, dynamic pricing, and geospatial search at scale.