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.
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22 questions
- 1Cumulative weekly retention (SQL)MediumData·
Pinterest - 2Pinterest WAU is up 5% but email notification open rates are down 2%. Figure out why.MediumDataProduct·
Pinterest - 3How do you coach and develop your engineering team?MediumBehavioral·
Apple, Cointracker - 4Merge intervals plus ML fundamentals probeMediumData·
Pinterest - 5Two SQL plus one Python on trust & safety dataMediumData·
Pinterest - 6How would you decide ad placement on Pinterest?MediumDataProduct·
Pinterest - 7Design a rate limiter.MediumSystem design·
Amazon, Google - 8Given a list of strings, find all strings that encode to the same value using a Caesar Cipher. (A Caesar Cipher rotates characters, e.g. in CC3: a->d, b->e, ..., z->c)MediumCoding·
Meta, Pinterest - 9Improve Pinterest.Medium·
Pinterest - 10As the PM for Spotify's Discover Weekly, what metrics would you track?MediumData·
Pinterest - 11Imagine a teleportation machine that can teleport humans for 100 meters. How would you monetize it? What are the use cases?MediumProduct·
Google, Pinterest - 12How do you prioritize features for your engineering team?MediumBehavioral·
eBay, LinkedIn - 13For a dataset with a million data points, would you use a DNN or KNN? Why?MediumTechnical·
Pinterest - 14Explain the differences between nonconvex and convex functions.MediumTechnical·
Pinterest - 15Explain the differences between ReLU and Sigmoid.MediumTechnical·
Pinterest - 16Explain overfitting.MediumTechnical·
Pinterest - 17Design a Facebook app to connect users with handymen.MediumProduct·
Meta, Pinterest - 18How would you improve the experience of people interested in travel on Pinterest?MediumProduct·
Pinterest - 19Tell me about the most challenging situation you faced in your career and how you handled it.MediumBehavioral·
Adobe, Amazon - 20What would be your strategy to improve Google Maps as a product?MediumProduct·
Google, Pinterest - 21Tell me something that's not in your resume.MediumBehavioral·
HelloFresh, Pinterest - 22Why did Google acquire YouTube?MediumProduct·
Pinterest