Know the rounds before you walk in.

5 rounds

• Design a globally distributed rate limiter.

  System Design

• Find the median of two sorted arrays in logarithmic time.

  DSA

• How would you debug a 99th percentile latency regression?

  Debugging

4 rounds

• Tell me about a time you disagreed with your manager.

  Leadership Principles

• Design an order fulfilment service.

  System Design

• Implement an LRU cache.

  DSA

4 rounds

• Serialise and deserialise a binary tree.

  DSA

• Design a collaborative document editor.

  System Design

5 rounds

• Build an infinite scrolling feed component.

  Frontend

• Design a news feed ranking system.

  System Design

4 rounds

• Explain how a browser renders a frame.

  Frontend

• Design an image processing pipeline.

  System Design

5 rounds

• Optimise memory usage in a constrained device context.

  Systems

• Design an offline-first sync protocol.

  System Design

4 rounds

• Design surge pricing.

  System Design

• Nearest driver search at scale.

  DSA

4 rounds

• Design a video encoding pipeline.

  System Design

• How do you measure playback quality?

  Metrics