Question bank

4,310 interview questions, answered.

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

Easy 190Medium 2,498Hard 982
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982 questions

  1. 889What should LinkedIn build next?HardProduct· LinkedIn
  2. 890How much money does the Play Store make in a year?HardProduct· Google
  3. 891As the PM for Google Hardware with unlimited resources, what would you build?HardProduct· Google
  4. 892How would you price the Amazon Kindle at launch?HardProductSystem design· Google
  5. 893If the CEO of Google asks for a product that allows meetings in person, what would you create for the next 5-10 years?HardProduct· Google
  6. 894Describe the most technically complex project you have worked on and explain why it was complex.HardBehavioral· Amazon, Anthropic
  7. 895Tell me about a time you took a strategic risk.HardBehavioralProduct· LinkedIn, Meta
  8. 896Top Salaries by DepartmentHardCodingData· Tesla
  9. 897How many drivers does Uber need to serve the San Francisco Bay Area?HardProduct· Google
  10. 898Build a dynamic pricing system.HardSystem design
  11. 899If you flip a coin 10 times and the results are all heads, what’s the probability that the coin is a fair coin?HardData
  12. 900Design a content moderation system using AIHardCodingSystem design
  13. 901Design a Deep Research agentHardCodingSystem design
  14. 902Design a feed-ranking systemHardCodingSystem design
  15. 903Design a multi-agent customer support systemHardCodingSystem design
  16. 904Design a multimodal search system (text + image + video)HardCodingSystem design
  17. 905Design a real-time fraud / abuse-detection ML systemHardCodingSystem design
  18. 906Design a real-time recommendation systemHardCodingSystem design
  19. 907Design a semantic search system at scaleHardCodingSystem design
  20. 908Design an AI coding agent (Cursor / Copilot / Claude Code style)HardCodingSystem design
  21. 909Design an LLM inference platform (vLLM-as-a-Service)HardCodingSystem design
  22. 910Design an ML feature storeHardCodingSystem design
  23. 911Design an RLHF pipelineHardCodingSystem design
  24. 912ML system design in the "MLE 2.0" research-eng roundHardData