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4,310 interview questions, answered.

Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.

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107 questions

  1. 49Design a question and answer website like Quora.HardProductSystem design· Meta
  2. 50Design Reddit.HardProductSystem design· Intuit
  3. 51How would you design safeguards for an AI system that can take actions on behalf of a user?HardAI MLProduct· OpenAI
  4. 52How would you design a large-scale ticketing system that can handle millions of users during peak events (e.g., Black Friday)?HardSystem design· Amazon
  5. 53Design a sentence autocomplete suggestion system. Example: Input - 'I hope you feel', Output - 'better soon'. This system is used in applications like Gmail, Google Docs, and Hangouts.HardSystem design· Google
  6. 54Design a shopping experience for Netflix.HardProductSystem design· Meta, Pinterest
  7. 55Design Slack.HardSystem design· American Express, Coinbase
  8. 56Design a system to detect bot players.HardSystem design· Roblox
  9. 57Design a system that ingests book reviews from Amazon.com and provides book recommendations on your website.HardSystem designTechnical· Amazon
  10. 58Design a system like YouTube.HardSystem designTechnical· Meta, Snowflake
  11. 59Design a system to track reviews abuse on Amazon.com.HardDataProduct· Amazon, DoorDash
  12. 60Design a system to upgrade hundreds of thousands of machines on the Moon.HardSystem design· Amazon, Google
  13. 61Design a taxi recommendation system for airports.HardSystem design· Walmart Labs
  14. 62Design TikTok.HardSystem design· Google, Meta
  15. 63Design a typeahead box for a search engine.HardSystem design· Adobe, Amazon
  16. 64Design Uber.HardSystem design· Uber
  17. 65Design Uber Eats.HardSystem design· Amazon, Meta
  18. 66Design a visual landmark recognition system.HardSystem designTechnical· Google
  19. 67Design a web crawler to download content from www.example.com without detection.HardSystem design· Meta
  20. 68Design YouTube.HardProductSystem design· Wealthfront
  21. 69Design a key-value store.HardSystem design· Accenture, Anthropic
  22. 70Estimate the storage needs for Google Photos on Pixel phones.HardProductSystem design· Google
  23. 71Estimate the storage needed for a day's worth of information from your brain.HardProductSystem design· Google
  24. 72You're the PM for Facebook Rooms. What goals would you set for the next 6 months?HardDataProduct· Meta