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.

617 Questions 1 Company07.06.2026
Showing 20 results
Role
Meta logo
Meta
Hard
Data Scientist

Evaluate Recommendation Feature with Historical Data Analysis

Offline Evaluation of a Recommendation Feature With Historical Data The company is considering launching a new recommendation-system feature and wants...

Analytics & Experimentation
24
0
49 people solved
Jul 12, 2025
Meta logo
Meta
Hard
Data Scientist

Analyze Data to Boost Group Post Comment Rates

Analytics Plan to Increase Group Post Comment Coverage A social shopping platform wants to increase the percentage of group posts that receive at leas...

Analytics & Experimentation
69
0
178 people solved
Jul 12, 2025
Meta logo
Meta
Hard
Data Scientist

Uncover User Needs for Group Calling Effectively

Uncover User Needs and Measure Group Calling Impact You are the product analyst for a messaging platform planning to introduce group calling. You need...

Analytics & Experimentation
113
0
304 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Define Metrics and Account for Network and Novelty Effects

Metrics for Notification-Triggered In-App Surveys Meta's notification system triggers optional in-app surveys to measure user sentiment after notifica...

Analytics & Experimentation
65
0
87 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Classify Reviewers Using Bayesian Probability for Accuracy Analysis

Classify Reviewers With Bayesian Probability You are auditing reviewers who may be lazy or careful. Each reviewer completes n gold-standard review tas...

Machine Learning
92
0
255 people solved
Jul 12, 2025
Meta logo
Meta
Easy
Data Scientist

Determine Posterior Probability of Bad User Prediction

Posterior Probability for a Bad-Actor Classifier You are evaluating a binary classifier that flags bad actors among users. Given: - 5% of users are tr...

Statistics & Math
33
0
134 people solved
Jul 12, 2025
Meta logo
Meta
Hard
Data Scientist

Design a Restaurant Recommendation System for Food Apps

Design a Restaurant Recommendation System for a Food-Ordering App You are designing an end-to-end recommendation system that suggests restaurants to u...

Machine Learning
34
0
102 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Resolve Team Conflicts to Improve Delivery Efficiency

Behavioral Interview: Resolve Team Conflict and Improve Delivery You are in a Behavioral and Leadership interview for a Data Scientist role. The inter...

Behavioral & Leadership
32
0
105 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Data Scientist

Estimate Lift and Significance in Facebook Ad Campaigns

Estimate Lift and Significance in Facebook Ad Campaigns An advertiser is running campaigns on Facebook and wants to know whether ads increased convers...

Statistics & Math
12
0
81 people solved
Jul 12, 2025
Meta logo
Meta
Easy
Data Scientist Locked

Define hand-waving accuracy and launch decision

This question evaluates a data scientist's ability to define and operationalize detection metrics, design instrumentation and diagnostics, connect mod...

Analytics & Experimentation
4
0
53 people solved
Nov 16, 2025
Meta logo
Meta
Medium
Data Scientist

How to decide if users need a new feature

You are a Data Scientist at a social app. The product team proposes a new in-app feature (e.g., a new sharing surface). You have event-level data and ...

Analytics & Experimentation
3
0
34 people solved
Nov 2, 2025
Meta logo
Meta
Medium
Data Scientist

Resolve cross-functional conflicts using analytics results

Answer the following behavioral prompts for a data science/product analytics role working cross-functionally (PM, Eng, Ads/Sales): 1) Describe a time ...

Behavioral & Leadership
2
0
35 people solved
Oct 14, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Validate in-post restaurant recommendations via experiment

This question evaluates a data scientist's competency in experimental design for recommendation systems, including defining viewer- and creator-level ...

Analytics & Experimentation
1
0
22 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Write SQL to compare social-only vs game-only engagement

You are given two tables capturing Oculus app usage. Define an 'active day' as a UTC date on which a user generates at least one event. Consider only ...

Data Manipulation (SQL/Python)
40
1
336 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Estimate Portal’s causal lift on video-call usage

This question evaluates applied causal inference and statistical analysis skills, including defining estimands, designing staggered-adoption differenc...

Statistics & Math
6
0
47 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Design offline segments for Meta Portal retail

Meta Portal is a plug‑in home video‑calling device sold via offline retail. Target segments are not finalized. You have historical, anonymized Faceboo...

Analytics & Experimentation
5
0
35 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Compute sample size and test duration

You will run a two-arm A/B test on a signup funnel. Given: baseline conversion p0 = 4.0%; you care about detecting a 10% relative uplift (p1 = 4.4%); ...

Statistics & Math
10
3
66 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Define and query shop visibility

You are given the following schema. Use only the columns provided; do not introduce new fields or labels. Tables and columns: - shops(shop_id INT, sho...

Data Manipulation (SQL/Python)
0
0
8 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Design hashtag recommender with cold start

This question evaluates expertise in recommender-system design, feature engineering, ranking and learning-to-rank models, cold-start strategies, evalu...

Machine Learning
3
0
41 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Compare Instagram vs. Facebook using causal experiments

Compare Instagram and Facebook for consumer time and engagement: a) Define a single-objective OEC that captures healthy cross-app ecosystem value with...

Analytics & Experimentation
3
0
38 people solved
Oct 13, 2025
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Meta Data Scientist Interview Prep
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Frequently Asked Questions

How difficult are Meta Data Scientist interview questions?
Meta Data Scientist interviews are typically challenging because they test both depth and breadth: technical fluency, statistical thinking, product intuition, and clear communication. Expect medium-to-hard SQL and coding problems alongside statistics and experiment-design questions that probe conceptual understanding rather than rote formulas. Senior roles add system and measurement tradeoff discussions and leadership expectations. Interviewers evaluate correctness, clarity, assumptions, and business impact, so partial solutions can still score well if you surface limitations and next steps. Preparation should emphasize translating technical results into actionable product recommendations as much as solving the raw problem.
What is the typical Meta Data Scientist interview process and where does each topic show up?
The Meta Data Scientist process usually begins with a recruiter screen, moves to a technical screening (live SQL/Python or a take-home), and then a multi-round onsite or virtual loop of four to five interviews. SQL and data-manipulation tasks appear in screening and the analytics rounds. Experiment design and statistics show up in research-design and metrics interviews. Product-sense rounds evaluate metric selection, tradeoffs, and impact. Behavioral rounds probe collaboration, ownership, and influence. Coding or algorithmic questions may appear depending on role level, and senior interviews emphasize scaling, measurement validity, and cross-functional leadership.
How long should I prepare for Meta Data Scientist interviews and what should a timeline look like?
A focused preparation timeline of six to eight weeks often works well for experienced candidates, with longer ramps for those switching fields. Start by solidifying core SQL and Python skills and practicing timed problems, then layer in statistics, experiment design, and product-case practice. Midway, incorporate mock interviews and full-length loops to practice pacing, storytelling, and translating analyses to impact. In the final weeks, refine STAR behavioral stories, review past projects with clear metrics, and run targeted drills on weak spots. Regular feedback and simulated interview conditions dramatically improve interview-day composure and clarity.
What are the key subtopics I must master for a Meta Data Scientist role?
You should be fluent in SQL fundamentals—joins, aggregations, window functions, CTEs, NULL behaviour, and the difference between WHERE and HAVING—along with performance-aware query design. In statistics, master hypothesis testing, confidence intervals, power, bias versus variance, and common pitfalls in A/B testing and metric validity. Analytical skills include metric design, segmentation, funnel analysis, and root-cause diagnosis. Practical Python for data manipulation, clear code and algorithmic complexity intuition are useful. For senior roles, add measurement platforms, data pipelines, causal inference principles, and communicating tradeoffs to product and engineering partners.
What standout tips and common pitfalls should I know for Meta interviews?
Standout performance combines rigorous answers with business context: always state assumptions, define the metric you would optimize, and conclude with clear product recommendations. Verbally outline your plan before coding or analysis and validate edge cases and data limitations. Use concise STAR stories that quantify impact. Common pitfalls include failing to tie analysis back to user or business outcomes, ignoring confounders in experiments, overengineering solutions when a simple metric change suffices, and poor communication under time pressure. Practicing paced mock interviews and seeking targeted feedback on clarity and tradeoff discussion will mitigate these risks.

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