Interview Practice

Interview Guides

System Design Case Studies

Original worked designs for interview prompts: payments, job scheduling, collaborative editing, leaderboards, a matching engine, ad click aggregation, metrics, object storage, hotel booking, a distributed cache, email, global rate limiting and real-time pedestrian intent.

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Notes

  1. 1How to use these case studies
  2. 2Design a payment system
  3. 3Design a distributed job scheduler
  4. 4Design a collaborative document editor
  5. 5Design a real-time leaderboard
  6. 6Design a stock exchange matching engine
  7. 7Design ad click aggregation
  8. 8Design a metrics and monitoring system
  9. 9Design an object storage service
  10. 10Design a hotel booking system
  11. 11Design a distributed cache
  12. 12Design an email service
  13. 13Design a global multi-region rate limiter
  14. 14Design a real-time pedestrian-intent system