Uber

How would you forecast rider demand in a new city with limited historical data?

Implement a consistent hashing ring for distributing ride requests across servers.

Tell me about a time you had to optimize a system under tight performance constraints.

How would you reduce rider cancellation rates?

How would you design a surge pricing algorithm? What signals would you use?

What motivates you in your work?

Design the Uber ride matching system. How do you pair riders with nearby drivers in real time?

Given a grid of city blocks, find the shortest path from pickup to dropoff avoiding obstacles.

Design Uber Eats order dispatch system that optimizes for delivery time and driver efficiency.

Design Uber's ETA prediction service. How do you account for traffic and weather?

How would you design a geospatial index to efficiently query nearby drivers?