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Google interview notes, page 125 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·Software Engineer·Technical Phone Screen

Jun 2026
Interviewed at Google for a software engineering role and got a classic BST question. Pretty standard but I fumbled parts of the explanation more than I expected.
  • Walk me through how insertion works in a binary search tree.

“I knew this cold, or so I thought.”

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Google·Product Manager·Onsite - Product Sense / Strategy

Jun 2026
Google PM interview, one question about navigating conflicting signals between qual and quant data. Short but not easy.
  • How would you handle a situation where qualitative insights contradict quantitative data?

“I fumbled the opener a bit, started talking about sample sizes before actually addressing the tension.”

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Google·Software Engineer·Onsite - Behavioral / Leadership

Jun 2026
Pretty standard behavioral round at Google for a software engineer role. Four questions, all fairly predictable, the kind you'd expect from any big tech screen. Nothing technical, just the usual 'tell me about a time' format.
  • Tell me about a time you stepped up to support your team.
  • What did you like and dislike about your previous team lead?
  • If someone on your team isn't a good fit culturally or professionally, how do you handle it?
  • A stakeholder comes to you asking to bump their request to the top of the queue. How do you respond?

“I had a decent story ready for this but rambled a bit on the context.”

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Google·Product Manager·Onsite - System Design / Architecture

Jun 2026
Went through a system design style product question at Google for a PM role. Just the one question but it took up the whole session.
  • How would you design a URL shortening service like TinyURL?

“I jumped straight into the product side (who uses it, what are the core flows) and kind of forgot to anchor on scale for way too long.”

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Google·Software Engineer·Onsite - Product Sense / Strategy

Jun 2026
Google Geo team PM interview, product design question with a follow-up estimation curveball. Pretty standard format but the estimation piece came out of nowhere and I wasn't ready for it.
  • You're a PM on Google's Geo team. Design a new travel product.
  • How many people do you expect to adopt this product in the first year?

“I went with a trip planning assistant that layers on top of Maps, figuring geo data was the obvious angle to lean into.”

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Google·Product Manager·Onsite - Product Sense / Strategy

Jun 2026
Google PM interview with a single market sizing and segmentation question built around a hypothetical smell-detection technology. Pretty open-ended, which I wasn't fully prepared for.
  • A third-party company has the ability to detect smells. How would you size the market opportunity, and which customer segment would you prioritize?

“I spent way too long on the market sizing part and kind of rushed the segmentation.”

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Google·Software Engineer·Technical Phone Screen

Jun 2026
Google SWE interview with a pretty involved data structures question that had a lot of moving parts. The core problem wasn't that hard to set up but the follow-ups on edge cases and bit operations made it a real workout.
  • Design a data structure for an online stream of positive integers that supports insert(x). After each insertion it should output: (a) the running median (for even counts, use the average of the two middle values), and (b) a 'loose median' interval [2^k, 2^(k+1)] where k is the unique integer such that 2^k < median < 2^(k+1). Describe your algorithms, time and space complexity, how you'd use bit operations to find k from the median, and how you'd handle edge cases like the median landing exactly on a power of two, non-integer medians, or zero/negative inputs.

“I got the two-heap setup pretty fast, min-heap and max-heap balanced to give O(log n) inserts and O(1) median reads.”

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Google·Product Manager·Onsite - Product Sense / Strategy

Jun 2026
PM interview at Google, one question about improving Maps. Pretty open-ended and I wasn't totally sure how deep they wanted me to go.
  • How would you approach improving Google Maps as a product?

“I went straight to user segmentation and started rattling off pain points for different personas, commuters vs tourists vs local explorers.”

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Google·Software Engineer·Onsite - Product Sense / Strategy

Jun 2026
Interviewed at Google for a product strategy role and got hit with one of those curveball hypotheticals that sounds absurd but is actually testing whether you can think clearly under weird constraints.
  • If you were the CEO of Microsoft, what would you do to grow Internet Explorer's market share?

“I stared at this for a second because the premise is so loaded.”

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Google·Software Engineer·Technical Phone Screen

Jun 2026
Google SWE coding round, one problem the whole session. Seemed straightforward at first glance but there's a bit more to it than brute force.
  • Given a list of two-digit integers, find the largest subset where every number shares at least one common digit across the entire subset.

“My first instinct was to check pairs, which was completely wrong.”

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