Meta Behavioral & Leadership Interview Questions
Practice 1,129 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.

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Demonstrate ownership and conflict resolution
Behavioral: 0→1 Data Initiative, Prioritization, and Cross-Functional Leadership Context: Onsite interview for a Data Engineer role. Provide a concise...
Describe conflict resolution, prioritization, and collaboration
Behavioral Prompt: Conflict Resolution and Leadership (Software Engineer, Onsite) Instructions Use the STAR method (Situation, Task, Action, Result) p...
Evaluate arithmetic expression without parentheses
Write evaluate(s: string) to compute the value of an arithmetic expression containing non-negative integers, '+', '-', '', '/', and spaces, with opera...
Identify Top 10 Users by Average Call Duration
video_calls | call_id | user_id | start_time | end_time | |---------|---------|----------------------|----------------------| | ...
Diagnosing a drop in total ads revenue
Diagnose a Sharp Drop in Global Ads Revenue Context You are a data scientist supporting a large ads marketplace. Last week, global ads revenue decline...
Analyze Recent Post Performance Using SQL Queries
INFO_STREAM_VIEWS +---------+-----------+--------------+----------+------------+ | post_id | viewer_id | relationship | duration | ds | +-----...
Expected impressions per user under random assignment
Random Assignment of Ad Impressions Across Users Setup In an A/B experiment, Y ad impressions are served uniformly at random across X distinct users. ...
Calculate Posterior Probability of Flagged User Being Bad Actor
Bayesian inference for abuse detection with error control Setup A platform runs a binary classifier that flags users who might be bad actors. Let: - p...
Build Predictive Model for Buyer Engagement Uplift
Predicting Engagement Uplift for a New "Show similar products" Button Scenario A new UI control (a "Show similar products" button) may change buyer en...
Determine Posterior Probability of Bad User Prediction
Evaluating a Classifier That Flags Bad Actors Question You are evaluating a binary classifier for detecting bad actors among users. Given: - Prevalenc...
Calculate Engagement Metrics for Info-Stream Content Analysis
info_stream_views +----------+-----------+--------------+----------+------------+ | post_id | viewer_id | relationship | duration | ds | +---...
Calculate Expected Impressions and Probability for Users
Random Allocation of Y Ad Impressions to X Users Setup (assumptions) - There are X distinct users and Y ad impressions. - Each impression is assigned ...
Leverage Data Sources for Effective Push Notification Strategy
Scenario A product team wants to improve the quality and impact of mobile push notifications for a consumer app. Assume you have access to event loggi...
Describe Handling Unexpected Changes and Data-Driven Conflicts
Behavioral & Leadership: Adaptability and Constructive Dissent (Data Scientist Phone Screen) Context You are interviewing for a Data Scientist role. T...
Design SQL Query for Shop Visibility and User Activity Metrics
SHOP_VISIBILITY +----------+---------+------------+------------+-------------+--------------+ | user_id | shop_id | event_date | is_visible | signup_...
Resolve Team Conflicts and Exceed Job Expectations Successfully
Behavioral & Leadership: Taking Initiative and Resolving Team Conflict Context You are interviewing for a Data Scientist role in a technical phone scr...
How to Validate Friends' Content Engagement Hypothesis?
Scenario A product team at Meta wants to understand whether content from a viewer's friends (connected authors) drives more 'social' engagement than c...
Identify User Interest in Group Video Calls Using Data
Group Video-Calling Feature Analysis Context You are asked to design, launch, and analyze a new group video-calling feature for a large social/messagi...
Evaluate Messenger's P2P Payments Feature for Business Viability
Facebook Messenger: Should We Add P2P Payments? Scenario Facebook Messenger is considering launching a Venmo-like peer-to-peer (P2P) money transfer fe...
Posterior probability given model accuracy
Security Classification: Posterior Probability When Flagged Context You are evaluating a binary classifier that flags potentially bad users. Assume: -...