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Google interview notes, page 55 of 215

FAANG / Big Tech

Most of these Google write-ups come from Software Engineers (1,167), then Product Managers (686) and Data Scientists (125). The most reported rounds are the product sense round (667), the technical phone screen (660), the behavioral / leadership round (252) and the onsite coding round (214).

2146 interview notes · updated Oct 2026

Google·Product Manager·Onsite - Product Sense / Strategy

May 2026
Went through a product growth question for what seemed like a PM role at Google, focused entirely on YouTube. Pretty standard case format but I definitely fumbled the structure a bit.
  • How would you go about growing the user base on YouTube?

“I jumped straight into acquisition tactics and the interviewer kind of just waited.”

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Google·Software Engineer·Technical Phone Screen

May 2026
Interviewed for a data engineer role at Google. The content was pretty sparse so there's not much to go on, just a topic that came up around top earning employees, probably a SQL or analytics question of some kind.
  • Given an employee dataset, how would you identify or retrieve the top earning employees?

“Classic SQL territory.”

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Google·Product Manager·Onsite - Product Sense / Strategy

May 2026
Google PM interview with a product analytics question about YouTube. Single question, product sense focus, nothing too crazy but it requires you to actually know how to think through metrics problems end to end.
  • YouTube's average video buffering time has increased by 10%. How would you investigate and address this?

“I went straight into root cause territory, which I think was right, but I probably moved too fast.”

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Google·Product Manager·Onsite - Product Sense / Strategy

May 2026
Interviewed at Google, got hit with a classic product sense question and didn't have much else to go on.
  • What makes a great product?

“Broad enough to go anywhere, which is kind of the problem.”

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Google·Software Engineer·Technical Phone Screen

May 2026
Google SWE interview with a classic scheduling problem. Nothing too exotic but the follow-up pressure on complexity was real.
  • Given an array of meeting time intervals, each with a start and end time, find the minimum number of meeting rooms needed so no two meetings overlap.

“I knew this problem but still fumbled the explanation for a bit.”

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Google·Product Manager·Onsite - Product Sense / Strategy

May 2026
Google PM interview with a single market sizing question. Pretty standard case format but the scope of it tripped me up more than I expected.
  • How many cinema tickets are sold in the US in a given year?

“I went top-down: US population, age distribution, how often different age groups go to the movies, average ticket price wasn't even asked but I kept wanting to bring it in.”

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Google·Software Engineer·Onsite - System Design / Architecture

May 2026
System design round at Google for a software engineer role, focused almost entirely on distributed messaging infrastructure. Pretty deep dive, they pushed hard on failure handling and multi-tenancy which I wasn't fully prepped for.
  • Design the APIs for a message queue or topic-based system, covering create, update, delete, and list operations, plus produce and consume semantics.
  • How would you handle failures, prevent data loss, and support recovery in a distributed message queue? Walk through acknowledgments, retries, and deduplication.
  • Compare an in-memory queue implemented as a class or library with a fully managed multi-tenant cloud queue service. What changes in terms of storage, partitioning, replication, and isolating different tenants?
  • How would you approach deployment management for a distributed message queue service?

“Started with the basics, topic creation with partition count and retention config, then produce and consume endpoints.”

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Google·Product Manager·Onsite - Product Sense / Strategy

May 2026
Google PM interview with a classic estimation question. Pretty standard format, one question, no frills.
  • Estimate the total miles run by joggers in Central Park on a given day.

“I started by breaking it into chunks: how many people are in the park, what fraction are jogging, and how far does a typical jogger go.”

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Google·Product Manager·Onsite - Product Sense / Strategy

May 2026
Google PM interview with one big open-ended strategy question. No real structure to the session, just one prompt and a lot of silence while I tried to figure out where to even start.
  • You're the CEO of an AI startup and Google just handed you $1 billion in funding. What product do you build?

“I froze for a second because the question is so wide open it almost feels like a trick.”

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Google·Product Manager·Onsite - Product Sense / Strategy

May 2026
PM interview at Google with a classic product sense question. Pretty short and straightforward but it still tripped me up more than I expected.
  • What is your favorite Google product and why? How would you improve it?

“I picked Google Maps because I use it every day, figured that would make it easier to riff on.”

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