Meta Data Scientist Interview Questions
Meta’s Data Scientist interviews target candidates who can turn large-scale product data into clear, measurable product decisions. Expect a blend of technical and product-focused assessments: Meta Data Scientist interview questions often probe SQL and Python data manipulation, statistical inference and A/B test design, metric definition and instrumentation, and product sense around engagement and growth. Distinctive to Meta is the emphasis on scale, experimentation, and the ability to communicate actionable insights to engineers and product managers; interviewers typically evaluate both analytical rigor and storytelling clarity. The process usually begins with a recruiter screen, moves to one or more technical screens (coding/SQL plus a product or metrics case), and culminates in a loop of interviews that combine analytics, research-design, and behavioral rounds. For effective interview preparation, prioritize timed practice on data manipulation problems, refresh hypothesis testing and power intuition, rehearse product-metric case studies aloud, and craft concise STAR stories that emphasize measurable impact. Complement technical practice with mock interviews and clear explanations of tradeoffs so you can translate analyses into product recommendations under time pressure.

"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."

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"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."
Define metrics for harmful-content severity
Context You are a Data Scientist on the integrity / harmful-content team for a large social media product. Leadership wants a way to track how bad pol...
Compute CTR for peak vs non-peak hours
You work on a video ads platform. You are given three tables and asked to compare CTR during peak hours vs non-peak hours. Tables Assume the following...
Convert multi-currency revenue to USD totals
You are analyzing ad revenue recorded in multiple currencies and need to compute US revenue and global revenue in USD. Tables Assume the following sch...
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...
Resolve Conflicts and Clarify Goals in Data Projects
Behavioral Interview Prompts for Data Roles Scenario You are interviewing onsite for a data-focused role. The interviewer is assessing collaboration, ...
Design SQL Query for Shop Visibility and User Activity Metrics
SHOP_VISIBILITY +----------+---------+------------+------------+-------------+--------------+ | user_id | shop_id | event_date | is_visible | signup_...
Calculate Engagement Metrics for Info-Stream Content Analysis
info_stream_views +----------+-----------+--------------+----------+------------+ | post_id | viewer_id | relationship | duration | ds | +---...
Posterior probability given model accuracy
Security Classification: Posterior Probability When Flagged Context You are evaluating a binary classifier that flags potentially bad users. Assume: -...
Evaluate Instagram's Short-Video Recommender System Success
Evaluating a New Short‑Video Recommender Feed Context You are a data scientist preparing metrics and an A/B test plan to launch a new short‑video reco...
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...
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...
Expected meetings in Room 1 after random assignment
Randomly Assigned Meetings Across Rooms (Balls-in-Bins) Setup - There are N rooms and k meetings. - Each meeting independently chooses a room uniforml...
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...
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...
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 ...
Evaluate Social Media's Brand Advertising Effectiveness
Measuring Brand Advertising Effectiveness on Social Media Scenario A retailer runs both direct-response (DR; optimized for immediate conversions) and ...
Analyze Recent Post Performance Using SQL Queries
INFO_STREAM_VIEWS +---------+-----------+--------------+----------+------------+ | post_id | viewer_id | relationship | duration | ds | +-----...
Determining the optimal ad load in News Feed
Scenario: Balancing Monetization and User Experience You are asked to set a data-driven threshold for ad frequency ("ad load" = number of ads shown pe...
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...
Evaluate Impact of Targeting Ads to High-Intent Users
Ad Allocation to High-Intent Users Only Scenario A product manager proposes allocating all ad impressions to the "high-intent" user segment (users pre...