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.
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"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."
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"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."
Design a content processing service
System Design: High-Throughput Content Processing Service Context Design a content processing and moderation service for a large-scale media app. Cont...
Solve four data structure and algorithms tasks
1) Print the numbers at each level of a binary tree. Given the root, output the values level-by-level (each level on a new line or as a list of lists)...
Define success metrics for a social feed
Define Success Metrics for a Social Feed Feature You are evaluating a change to the main social feed in a large-scale consumer app. Assume events are ...
Describe background and job motivations
Behavioral HR Screen: Self-Introduction, Role, Motivation, and Company Fit Context - Scenario: HR screen for a Software Engineer role. - Goal: Concise...
Design a real-time messenger
Question Design a real-time messaging system (a Messenger/WhatsApp-style product) that supports 1:1 and group chats. Walk through requirements, the AP...
Implement merge-in-place and group cyclic-equivalent strings
You are given two ascending arrays to merge in place and a separate grouping task: Part A — In-place merge without known sizes: - Array A contains sor...
Find connected region sizes in matrix
Given an m x n grid of characters grid and a target character ch, implement: ( 1) sizeOfRegion(grid, r0, c0, ch) -> int that returns the size of the 4...
Find power-of-two subarrays within sum range
Given an integer array nums and an integer k, find all subarrays whose length is a power of two and whose sum lies in the inclusive range [k, 2k]. Ret...
Solve sampling and streaming tasks
Implement the following algorithmic tasks: 1. Weighted random selection: You are given an array of positive integer weights w, where w[i] is the relat...
Solve array merge, tree view, and maze tasks
Solve the following coding tasks. 1) Merge two sorted arrays in-place You are given two integer arrays A and B, each sorted in non-decreasing order. -...
Design ticketing system with seat hold
Design an online ticketing system (similar to Ticketmaster) that allows users to browse events, select seats, and place a temporary 5-minute hold on s...
Merge overlapping intervals
You are given a list of closed intervals on the number line, where each interval is represented as a pair of integers [start, end] with start <= end. ...
Visualize Netflix metric trends
Visualizing a Streaming Metric for Netflix Prompt Choose one streaming metric (for example, Daily Active Viewers or Average Watch Duration) and descri...
Measure Harmful Content Impact with Key Metrics
Scenario A social-media platform needs to quantify how serious harmful or inappropriate user-generated content is, and what its impact on users and th...
Determine Probability of Video Selection and Impact Evaluation
Video Recommendation Push: Selection Probabilities, Complements, and Design Choices Scenario You are designing a push-notification system that recomme...
Determine Success Metrics for Circle Feature Optimization
Scenario Meta is evaluating a new social feature called Circle (similar to Facebook Groups), where members join a group and post and comment within it...
Implement scaled dot-product attention
Task In this interview you are asked to hand-write the forward pass of attention from the mathematical formula (no need to run code). Implement single...
Prepare answers for core behavioral questions
Behavioral Questions Set You are preparing for a behavioral interview. Be ready to answer the following questions clearly and concretely, ideally usin...
Compute invalid event percentage by pixel
Context You work on an ads pixel instrumentation platform. Each pixel emits events throughout the day; some events are missing (not observed) and some...
Implement, Debug, and Optimize a React Table
React Table Component — Design, Implementation, and Performance Context: You are building a reusable React Table component for a frontend technical sc...