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Meta interview notes, page 21 of 238

FAANG / Big Tech

Most of these Meta write-ups come from Software Engineers (1,194), then Data Scientists (489) and Product Managers (453). The most reported rounds are the technical phone screen (1,190), the product sense round (466), the system design round (255) and the behavioral / leadership round (205).

2377 interview notes · updated Jul 2026

Meta·Machine Learning Engineer·Technical Phone Screen

Apr 2026
ML Engineer interview at Meta focused heavily on model knowledge, specifically the kind where they want you to compare approaches and justify your choices rather than just define things.
  • How does a recommendation system model work, and when would you choose one approach over another?
  • Pick a classical ML method and a modern one in your area. What are the strengths and weaknesses of each, and how do you decide between them?

“This is the kind of question that sounds manageable until you realize they want more than a textbook answer.”

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Meta·Product Manager·Onsite - Product Sense / Strategy

Apr 2026
Interviewed for a PM role at Meta and got hit with a product improvement question on the timeline feature. Pretty classic Meta product sense territory, nothing shocking, but it still made me sweat a bit.
  • How would you improve Facebook's timeline?

“I went straight to talking about content relevance and algorithmic ranking, which felt safe but probably too obvious.”

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Meta·Software Engineer·Onsite - Behavioral / Leadership

Apr 2026
Behavioral round at Meta, pretty focused on conflict and communication. One question, straightforward setup, but the expectation was clearly a detailed walkthrough not just a vague answer about staying calm.
  • Tell me about a specific conflict you faced. Walk through how you communicated, collaborated, and resolved it without just reacting emotionally or avoiding the situation.

“The part that tripped me up was they really didn't want a surface-level answer.”

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Meta·Software Engineer·Technical Phone Screen

Apr 2026
Meta coding screen, grid BFS problem. Pretty standard algorithmic round but the multi-source angle trips people up if they haven't seen it before.
  • You have an m x n grid where each cell is either a wall (-1), a gate (0), or an empty room (INF). Fill every empty room with its distance to the nearest gate, in-place. Rooms that can't reach any gate stay as INF.

“The naive approach is to BFS from each gate separately and track minimums, but that tanks your runtime on large grids.”

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Meta·Machine Learning Engineer·Technical Phone Screen

Apr 2026
Went through a technical phone screen for an MLE role at Meta. One coding question, sliding window stuff, nothing too wild but the details matter more than you'd think.
  • Given two strings s and p, find all starting indices in s where a substring of the same length as p is an anagram of p.

“Classic sliding window.”

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Meta·Software Engineer·Onsite - Behavioral / Leadership

Apr 2026
Meta behavioral round where they pick one project from your background and just... stay there. No rotating stories, no switching topics. They drill the same scenario across every dimension they care about.
  • Walk me through a project you worked on in depth, including the technical decisions, how you collaborated with others, and how you handled any conflicts or setbacks along the way.

“This is basically the whole round.”

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Meta·Software Engineer·Technical Phone Screen

Apr 2026
Meta SWE interview, technical phone screen style. One meaty coding question that started simple but got extended with a constraint mid-way. Felt like a design-your-way-out-of-a-corner kind of problem.
  • You have a BFS-based maze solver on an m x n grid. Some cells only allow horizontal movement (no entering or leaving them vertically). How do you update the neighbor-generation logic to enforce this, how do you represent those constraints in the data structure, and how would you test it?

“Started fine with the baseline BFS, felt confident.”

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Meta·Software Engineer·Technical Phone Screen

Apr 2026
Meta SWE coding round, got a graph question about course scheduling. Pretty standard cycle detection problem but the setup trips people up if they haven't seen it before.
  • Given a number of courses and a list of prerequisite pairs, determine whether it's possible to complete all courses without hitting a circular dependency.

“Classic cycle detection in a directed graph.”

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Meta·Product Manager·Onsite - Product Sense / Strategy

Apr 2026
PM interview at Meta with a product design question framed as a direct ask from Zuckerberg himself. Short but high-stakes feeling.
  • Mark Zuckerberg has asked you to design a Facebook product for the Olympics. What would you build?

“The Zuckerberg framing threw me off a little.”

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Meta·Product Manager·Onsite - Product Sense / Strategy

Apr 2026
Meta PM interview with a single product analytics case. Not a lot of context given upfront, which made it harder than I expected to structure a clean answer.
  • Facebook Groups usage has dropped by 20%. How would you diagnose what's going wrong?

“I jumped straight into segmentation before even clarifying what 'usage' meant, which was a mistake.”

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