Design backend for Uber-like ride-hailing service
Company: Snapchat
Role: Software Engineer
Category: System Design
Difficulty: hard
Interview Round: Onsite
Design the backend system for a ride-hailing platform similar to Uber.
Focus on:
- How ride requests are placed and matched with drivers ("order taking").
- How user profiles (riders and drivers) are stored and accessed.
- High-level handling of real-time locations on a map (you can keep this part relatively brief).
- How the system should handle **peak-hour traffic**, when there is a large spike in ride requests.
Assume this is for a mid-level backend engineer role; you do not need to go into low-level configuration details of specific technologies, but you should be concrete about architecture, data models, scaling strategies, and consistency considerations.
Overview: This question evaluates understanding of distributed system architecture, data modeling for user profiles, real-time location handling, request matching algorithms, and scalability strategies for backend services.