Meta interview questions for engineers

CANDIDATE-REPORTED · INDEPENDENT SYNTHESIS

What candidates report about the interview

4 reviewed signals

Use these reports to choose what to rehearse, not to predict a fixed loop. Formats vary by role, team, and date; confirm your current process with the recruiter. Frontier Rehearsal is independent and not company-endorsed.

Process signalsReported stages, formats, timing, and role-specific variations.3

Candidate reports describe the Meta E6 technical screen as roughly 20 minutes of behavioural questions, an easy warm-up coding problem, a medium coding problem with follow-ups, and a short window for candidate questions.
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Candidate reports describe Meta's product-manager onsite as testing core product sense plus an analytical interview with heavy emphasis on metrics and experimentation, even for candidates who applied to AI PM roles.
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Candidates describe the Meta software-engineer loop as consistently including coding, system design and behavioural rounds, with recent reports also mentioning an AI-focused round.
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Candidate briefingsCompact, independently written summaries of fuller candidate timelines.1

According to a candidate report, the Meta onsite loop comprises two coding rounds, two system-design rounds and one behavioural round, and a mixed signal in one round can trigger a follow-up round.
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Evidence reviewed Nov 12, 2026. Reports can become stale.

Question groups

Topics

Independent and not affiliated with the companies represented. Collected material does not predict future interview questions.

1 question

Every question has a public brief with the task, constraints, and follow-ups. Labels describe interactive practice access.

Free practice

Topic tags
Python
Data structures
Product design

MetaCoding

Python codingWebAssembly + public tests

Reported interview periodNot available

Dot product of two long integer vectors

Read a shared length and two integer vectors of that length, then return their dot product as a decimal string. Most entries are zero, so the useful work should follow the non-zero positions rather than the dec…

Practice focusRequirements - Line 1 is the length n ; line 2 holds n integers for the first vector; line 3 holds n integers for the second. - Some inputs carry the two characters backslash and n instead of real line breaks; treat both forms as line separators before parsing. - Multiply matching positions, then add the products. Entries may be negative, so the sum can be negative or zero. - Return the total as a plain decimal string with no padding, no plus sign, and no newline. - Do not print the individual products or the operand vectors.…

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CANDIDATE-REPORTED · INDEPENDENT SYNTHESIS

What candidates report about the interview

4 reviewed signals

Use these reports to choose what to rehearse, not to predict a fixed loop. Formats vary by role, team, and date; confirm your current process with the recruiter. Frontier Rehearsal is independent and not company-endorsed.

Process signalsReported stages, formats, timing, and role-specific variations.3

Candidate reports describe the Meta E6 technical screen as roughly 20 minutes of behavioural questions, an easy warm-up coding problem, a medium coding problem with follow-ups, and a short window for candidate questions.
Open permanent link
Candidate reports describe Meta's product-manager onsite as testing core product sense plus an analytical interview with heavy emphasis on metrics and experimentation, even for candidates who applied to AI PM roles.
Open permanent link
Candidates describe the Meta software-engineer loop as consistently including coding, system design and behavioural rounds, with recent reports also mentioning an AI-focused round.
Open permanent link

Candidate briefingsCompact, independently written summaries of fuller candidate timelines.1

According to a candidate report, the Meta onsite loop comprises two coding rounds, two system-design rounds and one behavioural round, and a mixed signal in one round can trigger a follow-up round.
Open permanent link

Evidence reviewed Nov 12, 2026. Reports can become stale.

Question groups

Topics

Independent and not affiliated with the companies represented. Collected material does not predict future interview questions.

1 question

Every question has a public brief with the task, constraints, and follow-ups. Labels describe interactive practice access.

Free practice

Topic tags
Python
Data structures
Product design

MetaCoding

Python codingWebAssembly + public tests

Reported interview periodNot available

Dot product of two long integer vectors

Read a shared length and two integer vectors of that length, then return their dot product as a decimal string. Most entries are zero, so the useful work should follow the non-zero positions rather than the dec…

Practice focusRequirements - Line 1 is the length n ; line 2 holds n integers for the first vector; line 3 holds n integers for the second. - Some inputs carry the two characters backslash and n instead of real line breaks; treat both forms as line separators before parsing. - Multiply matching positions, then add the products. Entries may be negative, so the sum can be negative or zero. - Return the total as a plain decimal string with no padding, no plus sign, and no newline. - Do not print the individual products or the operand vectors.…

Meta interview questions for engineering roles

Meta interview questions for engineering roles

What candidates report about the interview

Dot product of two long integer vectors

What candidates report about the interview

Dot product of two long integer vectors