Prove you can ship with AI. Pick a challenge and go.
Strategic planning exercise: command Caesar's legions at the Siege of Alesia (52 BC). Analyze terrain, design fortifications, plan logistics, and defend on two fronts against overwhelming odds.
Collaborative system design interview: design a social media feed system for 500M users — from fan-out strategy and ranking to real-time updates, content moderation, scale, and microservices.
Collaborative system design interview: design a payment processing and ledger system handling $50B annually — from double-entry bookkeeping and idempotency to settlement, fraud detection, scale, and microservices.
Collaborative system design interview: design a real-time messaging platform for 200M concurrent users — from message delivery guarantees and group chat to presence, media handling, scale, and microservices.
Collaborative system design interview: design a ride-matching and dispatch system for 500 cities — from geospatial indexing and dynamic pricing to ETA prediction, driver assignment, scale, and microservices.