Meta 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."
Solve tree leaf sum and target indices search
Question LeetCode 129. Sum Root to Leaf Numbers LeetCode 2089. Find Target Indices After Sorting Array (array already sorted; require O(log n) time) h...
Find closest BST value and remove parentheses
Question LeetCode 270. Closest Binary Search Tree Value LeetCode 1249. Minimum Remove to Make Valid Parentheses (follow-up: achieve without using a st...
Solve classic LeetCode problems
Question LeetCode 215. Kth Largest Element in an Array LeetCode 249. Group Shifted Strings Variant of LeetCode 56. Merge Intervals extended to 2-D rec...
Describe a recent project you led
Behavioral Prompt: Project Leadership Walkthrough (Software Engineer) Provide a concise, end-to-end walkthrough of a recent project you led. Address t...
Implement weighted random index picker
Design a class WeightedPicker that is initialized with an array of positive integer weights w and supports pick() that returns an index i with probabi...
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...
Define and validate product metrics
End-to-End Analytics Design for a New Product Feature Context: You are the data engineer partnering with product, engineering, and data science to lau...
Evaluate the Health of Facebook Groups
Group Health Metrics and Experiment Design for Threaded Comments Context You are a Data Scientist working on a platform with Groups that range from sm...
Identify Users Interested in Group Video Calls
video_calls caller | recipient | ds | call_id | duration u1 | u2 | 2023-09-01| c100 | 320 u3 | u4 | 2023-09-01| c101 ...
Evaluating Instagram’s one‑tap account switcher
Instagram Account Switcher: Identity Resolution, Behavior, and Risk Assessment Context Product teams shipped an in‑app, one‑tap account switcher to he...
Evaluate Recommendation Feature with Historical Data Analysis
Offline Evaluation of a New Recommendation Feature Scenario You need to estimate the business value of a new recommendation-system feature using only ...
Determine Probability of Shared Videos in Recommendations
Video Recommendation Probability and Product Trade-offs Scenario A video-recommendation system selects K distinct videos for each user from an invento...
Evaluate Success of B2C Chat App with Key Metrics
Scenario A data scientist is asked to define how to evaluate the overall success of a business-to-consumer (B2C) chat application. Task Identify the c...
Resolve Team Conflicts to Improve Delivery Efficiency
Behavioral: Conflict Resolution (STAR) Context You're in a Behavioral & Leadership interview for a Data Scientist role. The interviewer wants evidence...
Advertising for local businesses boosting popular posts
Boosting Popular Posts for Local SMBs: Definitions, Success Metrics, and Diagnosing Low CTR Context You are evaluating an experiment where small, loca...
Assessing whether a new metric A is meaningful for News Feed
Evaluating a Proposed Proxy Metric for News Feed Context A partner team proposes a new proxy metric, metric A, intended to capture "meaningful interac...
Determine Key Statistics for Article Comment Distribution Analysis
Analyzing Comment Counts per Article Context You are analyzing the number of comments each article receives on a content website. You have the full di...
Impact of parents joining Facebook on teen engagement
Scenario: Parental Presence and Teen Behaviour on Facebook Context: Facebook’s teen audience (ages 13–17) increasingly overlaps with their parents, wh...
Identify Potential Users for Instagram Shopping Tab Adoption
Instagram Shopping Tab: Targeting, Metrics, and Trade-offs Context Instagram is launching a new in-app Shopping tab. As a data scientist, you need to:...
Analyze Recent Calling Behavior in France Using SQL
CALLS +---------+---------+---------------------+-------------------+----------+ | call_id | user_id | call_start_time | participant_cnt | is_vi...