Meta Interview Questions

Meta Interview Questions

Practice 1,159 real Meta interview questions for 2026. Covers top categories — Coding & Algorithms, Analytics & Experimentation, Data Manipulation (SQL/Python), Behavioral & Leadership, and System Design — across Software Engineer, Data Scientist, Machine Learning Engineer, Data Engineer, and Product Manager roles. Real questions from actual interviews with detailed solutions. Expect a software-engineering-heavy loop: timed algorithmic coding (trees, arrays, graph/maze problems, delimiter/CSV parsing), system-design prompts like leaderboards, flight search and online-judge architectures, and an increasingly common AI-assisted coding round that mirrors real workflows. Data Scientist rounds emphasize product analytics and experimentation—designing tests, diagnosing spend drops and bots, evaluating unconnected content, and writing SQL for multi-account, seller, and vehicle metrics. Machine Learning Engineer questions skew toward recommender and ranking work (place and friend recommendation, sparse-matrix ops, linear-regression derivations, newsfeed dislike models). Data Engineers focus on data modeling, ETL, capacity calculations, reservations/utilization queries, and production SQL/Python tasks. For interview preparation, prioritize timed coding practice, system-design templates, rigorous SQL drills (joins/CTEs/aggregation), clear A/B-testing frameworks, and concise STAR behavioral stories tied to measurable impact.

1.2k Questions 1 Company07.06.2026
Showing 20 results
Role
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Meta
Medium
Data Engineer

Visualize Netflix metric trends

Visualize Netflix metric trends Visualizing a Streaming Metric for Netflix Prompt Choose one streaming metric (for example, Daily Active Viewers or Av...

Analytics & Experimentation
5
0
84 people solved
Aug 4, 2025
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Meta
Medium
Data Engineer

Analyze private-account product metrics

Analyze private-account product metrics A social network is building (or refining) a private account feature: any user can set their account to privat...

Analytics & Experimentation
6
1
77 people solved
Aug 4, 2025
Meta logo
Meta
Easy
Data Scientist

Determine Probability of Friend Request Being Fake

Determine Probability of Friend Request Being Fake Scenario You operate a platform where 95% of accounts are real and 5% are fake. Fake accounts send ...

Statistics & Math
24
1
93 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Reflect on Conflict Resolution and Key Learnings

Reflect on Conflict Resolution and Key Learnings Behavioral Interview Prompts (Data Scientist, Onsite) Instructions Use the STAR framework (Situation,...

Behavioral & Leadership
3
0
28 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Describe Handling Unexpected Feedback and Actions Taken

Describe Handling Unexpected Feedback and Actions Taken Behavioral: Resilience After Unexpected Negative Feedback or Rejection Context You are in an o...

Behavioral & Leadership
24
0
75 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Assess Cultural Fit and Problem-Solving in Reality Labs Role

Assess Cultural Fit and Problem-Solving in Reality Labs Role Behavioral and Leadership Interview Prompts (Data Scientist, Reality Labs) Context The hi...

Behavioral & Leadership
4
0
36 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Determine High-Quality Notifications with CTR Analysis

Determine High-Quality Notifications with CTR Analysis Push Notification Quality: Metric, Baseline Assessment, and Experiment Design Background A mobi...

Analytics & Experimentation
5
0
43 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Analyze Video View Distribution: Mode, Median, Mean Comparison

Analyze Video View Distribution: Mode, Median, Mean Comparison Scenario You are analyzing user engagement on a short-video sharing product. The team n...

Statistics & Math
65
0
142 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Estimate Instagram Shopping Feature's Revenue and Test Impact

Estimate Instagram Shopping Feature's Revenue and Test Impact Instagram Shopping: Sizing, Experiment Design, and Troubleshooting Context Instagram is ...

Analytics & Experimentation
3
0
41 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Improve Team Dynamics: Addressing Unwelcoming Behavior Effectively

Improve Team Dynamics: Addressing Unwelcoming Behavior Effectively Behavioral & Leadership (Meta, Data Scientist) — Onsite Scenario You are interviewi...

Behavioral & Leadership
4
0
31 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Explain Type I vs. Type II Errors in A/B Testing

Explain Type I vs. Type II Errors in A/B Testing A/B Testing Errors and Estimation Under Skewed Metrics Context You are analyzing an A/B experiment fo...

Statistics & Math
20
0
57 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Analyze Algorithm's Impact on Diverse Demographics and Validate Causes

Analyze Algorithm's Impact on Diverse Demographics and Validate Causes A/B Test: Heterogeneous Lift in CTR for a New Ad-Ranking Algorithm Context You ...

Analytics & Experimentation
64
0
166 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Identify Probability of Request Originating from Bad User

Identify Probability of Request Originating from Bad User Measuring Abuse in Friend-Requests: Bayes, Identification, and Precision Scenario A social-n...

Statistics & Math
5
0
35 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Diagnose Causes of Low Retention for FB Light

Diagnose Causes of Low Retention for FB Light Diagnose Low Retention for FB Light (Android-only, Emerging Markets) Context You are a data scientist on...

Analytics & Experimentation
37
0
73 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Analyze Change in App Metrics and Feature Impact

Analyze Change in App Metrics and Feature Impact Scenario A consumer app has either launched a new feature or observed a sudden change in a key metric...

Analytics & Experimentation
3
0
34 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Evaluate Impact of Increasing Stranger Content in Feeds

Evaluate Impact of Increasing Stranger Content in Feeds Feed-Ranking Strategy: Friends vs. Stranger Content Background A personalized feed currently m...

Analytics & Experimentation
4
0
42 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Determine Probability of Video Selection and Impact Evaluation

Determine Probability of Video Selection and Impact Evaluation Video Recommendation Push: Selection Probabilities, Complements, and Design Choices Sce...

Statistics & Math
3
0
32 people solved
Aug 4, 2025
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Meta
Medium
Data Scientist

Track Metrics to Measure Push Notification Quality

Track Metrics to Measure Push Notification Quality Scenario A consumer mobile app sends push notifications to drive user engagement. You need to evalu...

Analytics & Experimentation
23
0
47 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze View Distribution and Recommendation Overlap in Videos

Analyze View Distribution and Recommendation Overlap in Videos Short-Video Platform: View Distribution and Recommendation Overlap Context You are anal...

Statistics & Math
7
0
53 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Determine Value of Prioritizing Accounts by Unread Notifications

Determine Value of Prioritizing Accounts by Unread Notifications Feature Validation: Ordering Multiple Accounts by Unread Notifications Context Users ...

Analytics & Experimentation
5
0
58 people solved
Aug 4, 2025

Frequently Asked Questions

How difficult are Meta interview questions?
Meta interview questions span a wide difficulty range because they must screen candidates from entry to senior levels across many functions. Expect coding rounds to map to medium-to-hard algorithmic problems that appear in top 100 problem lists for software engineers, and expect data roles to face challenging SQL, experiment diagnosis, and product-analytics problems that require clean metric definitions. Machine learning roles emphasize recommendation and ranking tradeoffs and model complexity, while data engineers encounter large-scale ETL and modeling puzzles. Difficulty scales with level: entry hires see clearer, bounded problems; senior hires face ambiguous tradeoffs and system-wide thinking.
What is Meta's interview process and where do these questions appear?
Meta typically runs a multi-stage process: recruiter screen, one or two technical screens or an online assessment, a full loop of onsite-style interviews, then debrief, committee review, and offer. The full loop mixes coding, system or product design, role-specific technical rounds, and behavioral interviews. Software-engineer candidates spend most time on coding and design; data scientists focus on SQL, experimentation, and product analytics; machine-learning engineers see modeling and recommendation design; data engineers handle SQL, data modeling, and pipeline questions; PMs get product-design and analytics probes. In 2025–2026 some teams pilot AI-enabled coding rounds.
How should I structure a preparation timeline for a Meta interview?
A focused six-week plan works well: weeks one and two cover fundamentals—data structures, algorithms, SQL basics, and experiment design; weeks three and four emphasize timed problem practice, mock phone screens, and role-specific cases (A/B diagnosis for data scientists, model design for MLEs, ETL modeling for data engineers); week five concentrates on system or product design and behavioral storytelling; week six is for full mock loops, timing, and refining communication. Practice with realistic tools, simulate loop pacing, and schedule a debrief after each mock to iterate on clarity, edge-case handling, and time management.
Which technical subtopics are most commonly tested for each role at Meta?
For Data Scientist interviews the recurring technical themes are product-metric definition, diagnosing experiment and spend drops, counting multi-account interactions, SQL for multi-entity metrics, and ranking or recommendation evaluation such as shop ad ranking. Software-engineer questions frequently focus on timestamped state and versioned systems, leaderboards and ranking, maze/graph traversal and tree/array transforms, delimiter and CSV parsing, and scalable search or flight-search style designs. Machine-learning engineers see place and friend recommendation design, sparse-matrix operations, ranking/loss choices, and feed dislike or personalization models. Data engineers repeatedly face entity modeling for feed and booking data, SQL analytics for utilization and reservations, and capacity-aware aggregation challenges.
What standout tips and common pitfalls should I watch for in Meta interviews?
Start interviews by clarifying requirements and expected outputs, then propose measurable success metrics; this prevents misaligned solutions. For coding, think aloud, handle edge cases, state complexity up front, and write a couple of quick tests. In design rounds quantify load, storage, and tradeoffs rather than vague features. Data roles must define metrics, guardrails, and experiment assumptions before jumping to analysis; common pitfalls are ambiguous metric definitions, peeking at tests, and ignoring instrumentation limits. For AI-assisted coding rounds, use the assistant to accelerate boilerplate but validate logic and corner cases yourself. Finish each answer with a concise summary of impact and tradeoffs.

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