Scaling a Collision-Free Rover Fleet to a Million Robots
Company: Shopify
Role: Software Engineer
Category: System Design
Difficulty: medium
Interview Round: Technical Screen
Quick Answer: This system design question evaluates a candidate's ability to scale a stateful, invariant-preserving service across distributed machines, using a shared-grid rover simulation as the concrete scenario. It tests sharding strategy, cross-shard coordination, and fault-tolerant state management, commonly probed in senior backend interviews to assess distributed systems reasoning beyond basic CRUD scaling.
