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4,310 interview questions, answered.

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36 questions

  1. 1You're a financial security product PM. How would you use AI to enhance security across banking systems?HardProductTechnical· Microsoft
  2. 2How would you build TinyURL?HardSystem designTechnical· Google, Meta
  3. 3How would you build a recommendation system for an e-commerce store?HardDataTechnical· Amazon, Lyft
  4. 4Given a list of conversion items between symbols, write an algorithm to return the conversion ratio for each pair of symbols.HardCodingTechnical· Snap
  5. 5Design an algorithm to rank ads in the Google Play Store. Include primary and secondary success metrics.HardDataTechnical· Google
  6. 6Design APIs for Facebook live commenting.HardSystem designTechnical· Meta
  7. 7Design a content delivery network (CDN).HardTechnical· Google
  8. 8Design a currency exchange system.HardSystem designTechnical· TikTok
  9. 9Design a distributed database system, for example, Kafka.HardProductTechnical· Confluent
  10. 10Design the architecture for Google Maps to load in under 100ms.HardTechnical· Google
  11. 11Explain how you would design Google Play Store, including your choice of database, its structure, and rationale.HardSystem designTechnical· Walmart Labs
  12. 12Design a security system for a hotel.HardProductTechnical· Microsoft
  13. 13Design a metrics and logging service.HardSystem designTechnical· Booking.com, Google
  14. 14Design a product that helps college students in dorms befriend each other, including architecture and database schema.HardProductTechnical· Microsoft
  15. 15Design a system that ingests book reviews from Amazon.com and provides book recommendations on your website.HardSystem designTechnical· Amazon
  16. 16Design a system like YouTube.HardSystem designTechnical· Meta, Snowflake
  17. 17Design a system to track reviews abuse on Amazon.com.HardDataProduct· Amazon, DoorDash
  18. 18Design the system for a ticket selling web application.HardTechnical· Amazon, Google
  19. 19Design the SMS API for Twilio.HardProductTechnical· Stripe
  20. 20Design a visual landmark recognition system.HardSystem designTechnical· Google
  21. 21Design a voting system.HardTechnical· Meta
  22. 22Design YouTube's video recommendation engine.HardTechnical· Google
  23. 23Design a newsfeed algorithm for Google.HardTechnical· Google, Waymo
  24. 24Design the architecture for a hardware device that measures temperature and social distance among employees in warehouses during COVID.HardSystem designTechnical· Amazon