Meta Software Engineer Interview: Rounds and Prep Plan

Quick answer: Meta's own interview guide describes two stages for software engineers. First comes a technical screen with a Meta engineer that is mainly coding. Then comes a full loop with coding, design and behavioral interviews of about 45 minutes each. Interviewers look at how you solve problems and explain your reasoning, not only at whether you reach the right answer. Meta last updated that guide in 2022, so confirm your exact rounds with your recruiter.

This guide summarizes what Meta publishes, what each round tests, how to practice, and a four-week plan. It is written for software engineers applying to Meta in the US, UK, Canada and other countries.

What Meta publishes about its interviews

Meta publishes Preparing for your software engineering interview at Meta on its careers site. The version we read is dated October 2022 (checked 15 October 2026). The next three sections summarize that page; the rest of this article is general preparation advice, not Meta policy.

Formats change, and your recruiter is the best source for your own schedule. Ask which round types you will have, how long each one is, and whether any round uses a different format.

Stage 1: the initial technical screen

According to Meta's guide, the first interview is with a Meta engineer and is mainly a coding interview. It decides whether you move on to the full loop.

1. Format: about 5 minutes of introductions, 35 minutes of coding and 5 minutes for your questions.

2. Content: fundamentals such as algorithms, data structures, recursion and binary trees, with one or more coding problems.

3. Tools: a shared online editor for remote interviews, or a whiteboard in person.

4. Difficulty: Meta says its questions are meant to be solvable in roughly 10 to 30 minutes and that it generally avoids trick and estimation questions.

Stage 2: the full interview loop

Meta's guide describes three kinds of interview in the full loop:

1. Coding (about 45 minutes): the same shape as the screen, and typically harder.

2. Design (about 45 minutes): a systems design or product design problem with little or no coding. Interviewers look at whether you can solve a non-trivial design problem, reason about trade-offs and anticipate common problems.

3. Behavioral (about 45 minutes): your background, motivation and past work, and whether you would do well in a fast-moving engineering organization and learn from experience.

The guide also says to use the programming language you are best at, unless your recruiter tells you otherwise.

What interviewers look for in coding rounds

Meta's guide says your approach to a problem can matter as much as the final answer. In practice:

1. Clarify the problem and the input limits before you write code.

2. Explain your plan out loud and state its time and space complexity.

3. If the best solution does not come quickly, write a working solution first, then improve it.

4. Test your code on a small example and an edge case, and find your own bugs before the interviewer does.

5. When you are stuck, keep talking and ask a question rather than going silent.

Topics to review

Meta lists fundamentals rather than a fixed syllabus. A practical review list based on its guidance:

1. Big-O analysis for time and space.

2. Arrays, strings and hash maps, including two pointers and sliding windows.

3. Binary trees and binary search trees: traversals, recursion and level-order (BFS) problems.

4. Graphs: breadth-first and depth-first search on grids and adjacency lists.

5. Recursion, and rewriting the same solution iteratively.

6. Stacks, queues and heaps for "top K" and scheduling-style problems.

Our LeetCode preparation guide and DSA preparation guide go deeper on each pattern.

Preparing for the design and behavioral rounds

For design, Meta's guide suggests starting with the requirements, then a high-level approach, then the trade-offs. Practice saying out loud who the users are, what the system must do, the expected scale, the main components and where it could fail. Our system design guide gives a step-by-step structure.

For behavioral rounds, Meta recommends concrete examples in the STAR format (Situation, Task, Actions, Results), honesty about failures, and reading the company's core values before the interview. Build six to eight stories with our STAR method guide.

Practice habits Meta recommends

1. Practice in a plain editor without autocomplete or syntax highlighting, because the interview editor may not have them.

2. Practice on paper or a whiteboard if any interview is in person.

3. Practice against a timer, ideally in mock interviews with another person.

4. Explain your thinking out loud as you code, even when practicing alone.

A four-week preparation plan

1. Week 1: review big-O, arrays, strings and hash maps. Solve two problems a day in a plain editor.

2. Week 2: trees, recursion and graphs. Rewrite one recursive solution iteratively each day.

3. Week 3: timed 35-minute sessions with two problems each, plus two design practice sessions.

4. Week 4: mock interviews for coding, design and behavioral rounds; finalize your STAR stories; re-read Meta's values and the official guide.

For how Meta compares with other large employers, see our big tech interview process guide.

Where CrackInterviewAI fits

CrackInterviewAI is a Windows 10/11 app that turns a spoken, typed or screenshot question into a short answer outline, using your resume, target role and job description as context. New accounts get 30 free minutes; after that, international prices start at $3.99 for one hour, with no subscription or auto-renewal (USD plans).

While you prepare, paste a practice problem or say a behavioral question to get a structured outline to compare with your own approach, then rehearse with a free mock interview. Meta's interviews assess your own problem solving, so use these tools to prepare, and follow the rules your recruiter gives you for the interview itself.

Prepare for your Meta interview

Download CrackInterviewAI for Windows and use your 30 free minutes to practice coding explanations and STAR stories for a Meta loop.

Download for Windows · See USD plans from $3.99

Frequently asked questions

How many rounds are in the Meta software engineer interview?

Meta's published guide describes an initial technical screen followed by a full loop of coding, design and behavioral interviews. How many of each you get depends on the role and level, so ask your recruiter for your schedule.

How long is each Meta interview?

Meta's guide describes about 45 minutes per interview: roughly 5 minutes of introductions, 35 minutes on the problem and 5 minutes for your questions.

Which programming language should I use in a Meta interview?

Meta says to use the language you are strongest in, unless your recruiter tells you otherwise.

Does Meta ask trick questions?

Its guide says Meta generally avoids trick and estimation questions and aims for problems that can be solved in roughly 10 to 30 minutes.

Is Meta’s interview guide up to date?

The official page we checked is dated October 2022. Formats can change, so confirm the details with your recruiter before you plan your preparation.

Keep exploring

Return to the CrackInterviewAI homepage to download the Windows app, or browse all guides on the interview prep blog.

Meta Software Engineer Interview: Rounds, Question Types and a 4-Week Plan