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.
"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."
Add two binary strings
This question evaluates proficiency with binary arithmetic and string manipulation, focusing on carry propagation and handling of very long inputs wit...
Prioritize voice-to-text or assistant?
For the same accessibility-focused VR product, assume the team can ship only one feature first because engineering capacity is limited: voice-to-text ...
Handle last-minute track change
Behavioral Question: Switching Tracks Mid-Interview Loop You are midway through a software engineering onsite when the interview focus changes (e.g., ...
Find missing ranges in interval
Given a sorted unique integer array nums and two integers lower and upper defining an inclusive interval [lower, upper], return all missing ranges not...
Solve four algorithmic library problems
Solve the following coding tasks: 1) Maximum Points from Different Categories: Given an array of items (category, points) and an integer k, choose exa...
Design core bank operations
Design core bank operations Design a BankSystem Class (Take‑home Project) Goal Design and document a BankSystem class that supports three operations: ...
Design a mini banking system
Design a mini banking system In-Memory Banking System — Design and Implementation You are to design and implement an in-memory banking system that sup...
Check near-palindrome with one deletion
Check near-palindrome with one deletion Given a string s, determine whether it can become a palindrome after deleting at most one character. Return bo...
[Analytical Reasoning] Comparing Two Newsfeed Ad Insertion Methods
Compare two ad-insertion methods for a 100-post newsfeed. Both methods have the same average ad load. - Method A: each post is independently replaced ...
Design metrics to detect harmful content and fraud
This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a rea...
Solve linked-list and top-K algorithm tasks
Question Given a singly linked list, return the k-th node counted from the end. Given an integer array, return the top k most frequent numbers. Given ...
Quantify Latent Demand for Group Video Calling Feature
Quantify Latent Demand for Group Video Calling Feature Scenario A consumer messaging app is preparing to launch group video calling. You have access t...
Determine Probability of Fourth Good Response After Three Successes
Determine Probability of Fourth Good Response After Three Successes Evaluating Good-Response Rates for Chatbot Outputs Context You are evaluating chat...
Analyze Key Metrics for Notification System Success
Analyze Key Metrics for Notification System Success Scenario You are evaluating a new push-notification system for a social app. The goal is to determ...
Calculate and Compare Survey Response Rates for User Tenure
Surveys +--------+------------+--------------+----------+ | userid | date | survey_event | response | +--------+------------+--------------+----...
Influence Stakeholders for Product Decision at Meta
Influence Stakeholders for Product Decision at Meta Behavioral: Influencing Stakeholders To Drive a Product Decision Scenario Cross-functional product...
Investigate Causes of Decline in Facebook Group Comments
Investigate Causes of Decline in Facebook Group Comments Scenario A sharp decline in Comments per Post (CPP) was observed in Facebook Groups last week...
Identify Metrics to Detect Fake-Account Activity on Facebook
Identify Metrics to Detect Fake-Account Activity on Facebook Detecting and Measuring Fake Accounts Scenario Facebook wants to understand and curb fake...
Determine Key Metrics and Design A/B Test for Ad Ranking
Determine Key Metrics and Design A/B Test for Ad Ranking Experiment Design: Replacing Rule-Based Ad Ranking with a Recommender Context You are launchi...
Design A/B Test to Evaluate New Video-Feed Feature
Design A/B Test to Evaluate New Video-Feed Feature Scenario A consumer social-media app is launching a short‑video feed (TikTok-style). A newly added ...