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Meta interview notes, page 11 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·Software Engineer·Onsite - Behavioral / Leadership

Apr 2026
Interviewed for an EM role at Meta, one round focused on people management. Pretty standard stuff but it still made me think harder than expected.
  • How do you manage your team's performance?

“I rambled a bit here.”

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Meta·Software Engineer·Technical Phone Screen

Apr 2026
Meta data engineering interview, SQL-heavy technical screen. One question, one concept, and honestly the window function angle is where people either nail it or start sweating.
  • Given an event log table with columns like event_date, follower_id, followee_id, and action (either 'follow' or 'unfollow'), write a SQL query that returns all follower/followee pairs who are still actively following each other as of a given target date D. Account for cases where a pair has toggled follow and unfollow multiple times.

“The naive approach bites you here.”

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Meta·Software Engineer·Technical Phone Screen

Apr 2026
Meta coding screen, pretty standard algorithmic fare. One question but it had enough follow-up angles to keep things interesting for a bit longer than I expected.
  • Given two lists a and b, return all elements from a that don't appear in b, keeping the original order from a. For example, a = [3, 1, 4, 1, 5, 9, 2] and b = [1, 5] should give [3, 4, 9, 2].

“The base case is pretty quick to code up but the follow-ups are where you can fumble.”

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Meta·Software Engineer·Onsite - Behavioral / Leadership

Apr 2026
Behavioral round at Meta for a software engineer role. Pretty standard stuff, nothing that would throw you off if you've done a few of these before.
  • Tell me about a time you collaborated with others to deliver a project.
  • How do you keep things moving when requirements are vague or keep changing?
  • How do you decide what to work on first when you have too many things on your plate?

“Ran through a team project I'd worked on.”

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Meta·Product Manager·Onsite - Product Sense / Strategy

Apr 2026
PM interview at Meta, single question about designing metrics for a standalone calendar app. Short session, no ecosystem context to lean on, which made it a bit trickier than expected.
  • You're the PM for a standalone calendar app (not part of any larger product ecosystem). How would you define and design metrics for it?

“The 'not in any ecosystem' constraint was the real curveball.”

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Meta·Product Manager·Onsite - Product Sense / Strategy

Apr 2026
Meta PM interview, product sense round. One question about designing an events feature for a kids' messenger app. Pretty focused session, not a lot of back-and-forth after I gave my answer.
  • How would you design an events feature for a kids' messaging app?

“The kids angle tripped me up more than I expected.”

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Meta·Software Engineer·Online Assessment (OA)

Apr 2026
AI-assisted coding round at Meta for a software engineer role. One problem, combinatorial in nature, and the clean solution requires a bit manipulation insight that I probably wouldn't have landed on cleanly under pressure.
  • Given a list of words, find the subset that covers the maximum number of distinct characters, where no two selected words share any character.

“The month abbreviations example actually helped me see the constraint clearly.”

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Meta·Product Manager·Onsite - Product Sense / Strategy

Apr 2026
Meta PM interview, got asked a classic metrics question about WhatsApp. Not much else to go on but it's the kind of question that sounds easy and then you realize halfway through your answer that you've been talking about the wrong things.
  • What KPIs would you define and track for WhatsApp?

“I went straight to DAU and message volume and the interviewer just kind of waited.”

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Meta·Software Engineer·Onsite - System Design / Architecture

Apr 2026
Meta system design round for a software engineer role. The question was on designing Facebook Search and it went pretty well, covered all the major areas without feeling rushed.
  • Design Facebook Search.

“Felt solid going through this.”

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Meta·Software Engineer·Technical Phone Screen

Apr 2026
Meta coding interview, one problem the whole session: sort a doubly linked list using merge sort. Pretty focused, no fluff.
  • Implement merge sort on a doubly linked list.

“I knew merge sort conceptually but applying it to a doubly linked list tripped me up more than I expected.”

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