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
Medium
Data Scientist

Compute posterior fake probability using Bayes' rule

A platform runs an automated detector to flag fake accounts. - Prior probability an account is fake: \(P(F)=0.02\). - True positive rate (sensitivity)...

Statistics & Math
10
0
73 people solved
Oct 14, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Design and validate an ads feed experiment

This question evaluates a data scientist's competency in experiment design, causal inference, and applied statistical analysis for product experimenta...

Analytics & Experimentation
9
0
73 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Design analysis to test social vs game engagement

Question Hypothesis: Among Oculus (Meta Quest) users, those who use social features are more regularly engaged than those who use game features. Using...

Analytics & Experimentation
6
1
65 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Measure a friend-recommendation launch

A new friend-recommendation algorithm ships behind a feature flag. Design how you will measure success and decide whether to launch: - State no more t...

Analytics & Experimentation
4
0
69 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Apply reinforcement learning to product decisions

This question evaluates expertise in reinforcement learning and sequential decision-making for product optimization, covering MDP formulation, contras...

Machine Learning
2
0
42 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Contrast OLS, DiD, and PSM assumptions

This question evaluates proficiency in causal inference and econometric methods, specifically the ability to contrast OLS, two-way fixed-effects DiD, ...

Statistics & Math
5
0
51 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Test two models' proportions for significance

Two search models, A and B, were each used once by 100 distinct users (one query per user). Success is defined per query by your composite metric (suc...

Statistics & Math
5
0
46 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Design B2C chatbot success metrics and test plan

You own 'euro-chat', a B2C customer-support chatbot that aims to deflect agent contacts while preserving customer satisfaction. Design a rigorous succ...

Analytics & Experimentation
4
0
49 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Choose ML metrics under asymmetric costs

This question evaluates a data scientist's competency in cost-sensitive binary classification, covering skills such as defining business cost matrices...

Machine Learning
4
0
34 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Diagnose sudden KPI drop with segmentation

Production Incident: 10% Drop in Daily Likes (DAU Flat) on 2025-09-01 You are investigating a 10% day-over-day drop in daily Like actions on a global ...

Analytics & Experimentation
5
0
42 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Diagnose drop and assess metric change impact

This question evaluates a data scientist's competency in diagnostic analytics, instrumentation validation, causal attribution, experimentation design,...

Analytics & Experimentation
1
0
25 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Build dashboard; diagnose engagement–purchase gap

Build a Comprehensive Dashboard for the Shopping Tab (Organic Only) Context Assume the Shopping tab is an in-app surface for organic product discovery...

Analytics & Experimentation
4
0
34 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Prove source growth is cannibalization, not incremental

Causal Analysis Design: Is Web Growth Incremental or Cannibalization? Background You observe that revenue attributed to creation_source = "web" is hig...

Analytics & Experimentation
3
0
37 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Derive no-click probability and sketch implications

Click Probability Across Repeated Impressions Context: We show A impressions of the same item to a user. Unless otherwise stated, each impression is a...

Statistics & Math
2
0
41 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Design cluster-randomized test under network effects

A/B Test Design for a New Group Call Feature with Network Effects You are designing an experiment for a Group Call feature where social network effect...

Analytics & Experimentation
7
0
49 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Tune fraud threshold under review capacity and costs

Fraud Triage Thresholding with Calibrated Scores Context You have a fraud model that outputs a calibrated score s ∈ [0, 1] per account, where s ≈ P(fa...

Machine Learning
3
0
38 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Model comment counts and detect anomalies

Modeling Heavy-Tailed Comment Counts and Robust Monitoring You are analyzing daily comment counts at the post–day level. The distribution is heavy-tai...

Statistics & Math
4
0
42 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Measure fake-news interventions under network interference

Experiment Design Under Interference: Warning Label for Suspected Fake-News Reshares Context You are testing a pre-reshare warning label for links sus...

Analytics & Experimentation
6
0
48 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Optimize IG Shopping ranking with multiple objectives

Instagram Shopping: Multi-Objective Ranking With Fairness, Fraud Robustness, and On-Device Constraints You are designing the Instagram Shopping home f...

Machine Learning
2
0
25 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Compute view prevalence from views and labels

Given the tables below, write SQL to compute view prevalence of violating content. Use “today” = 2025-09-01 and report the last 7 days (2025-08-26 to ...

Data Manipulation (SQL/Python)
8
0
58 people solved
Oct 13, 2025
Editorial prep
Meta Data Scientist Interview Prep
Concept walkthroughs, worked examples, and the real questions.

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.

Explore more Meta Data Scientist interview questions

Real questions from candidate reports, grouped by topic, role and company.

By category
Other roles at Meta
Data Scientist questions at other companies
Browse all