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
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Meta
Medium
Data Scientist

Calculate Ad Insertion Statistics for Two Methods

Ad Insertion Statistics for Two Feed Strategies You are comparing two ways of inserting ads into a 100-post feed. - Option A: Each post independently ...

Statistics & Math
73
0
80 people solved
Jul 12, 2025
Meta logo
Meta
Easy
Data Scientist

Calculate Expected Impressions and Probability for Users

Expected Impressions From Random Ad Allocation There are X distinct users and Y ad impressions. Each impression is assigned independently and uniforml...

Statistics & Math
17
0
57 people solved
Jul 12, 2025
Meta logo
Meta
Hard
Data Scientist

Design Experiment to Measure Shopping Feature Impact

Experiment Design: Measure Instagram Shopping Impact Instagram is launching an in-app Shopping feature, such as product tags, shop surfaces, or in-app...

Analytics & Experimentation
10
0
58 people solved
Jul 12, 2025
Meta logo
Meta
Hard
Data Scientist

How would you evaluate upranking Shop ads?

Meta is considering upranking ads that send users to an in-app Shop experience (for example, Facebook/Instagram Shops) relative to ads that send users...

Analytics & Experimentation
3
0
43 people solved
Oct 16, 2025
Meta logo
Meta
Medium
Data Scientist

Propose an ads recommendation model for shop ads

You need to propose a modeling approach for recommending/ranking shop ads (i.e., which shop ads to show and in what order) for a marketplace app. Desc...

Machine Learning
5
0
43 people solved
Oct 14, 2025
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Meta
Medium
Data Scientist

Build a model to infer home vs office vs public

You must infer whether a Facebook session’s network context is home, office, or public venue to inform Portal targeting. Constraints: IPs may be share...

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

Size opportunity for new product line

An e-commerce site considers adding a "Home Office" product line. Before any A/B test, size the opportunity and recommend whether to proceed. Assumpti...

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

Design and critique teen-parent impact experiment

Causal Impact of Parental Registration on Teen Outcomes Meta plans to let parents register and link to their teen’s account. Leaders are concerned abo...

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

Evaluate and prioritize Facebook Groups

This question evaluates product analytics, experimentation design, causal inference, KPI hierarchy and metric-definition skills, and quantitative prio...

Analytics & Experimentation
3
0
34 people solved
Oct 13, 2025
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Meta
Medium
Data Scientist

Run a clean A/B test for recommendations

You must run an A/B test to evaluate the new hashtag recommender starting on 2025‑09‑01. 1) Define the randomization unit (user/session/impression) an...

Analytics & Experimentation
3
0
39 people solved
Oct 13, 2025
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Meta
Medium
Data Scientist

Describe leading through stakeholder conflict and ambiguity

Describe a time you had to push back on a senior stakeholder to stop a rushed launch of a metric/report or experiment you believed was invalid. Includ...

Behavioral & Leadership
9
0
70 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Handle novelty and residual effects

This question evaluates a data scientist's competency in experiment design and causal inference for online metrics under temporal dynamics, specifical...

Analytics & Experimentation
2
0
27 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Estimate variance for ratio metrics

KPI Variance via Delta Method and Inference Choices for ARPU Context You run experiments where each arm produces aggregate totals per analysis unit (e...

Statistics & Math
4
0
50 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Design and analyze A/B test with interference

You must ship a News Feed ranking change where content produced by treated users can be seen by control users, creating interference and within-user c...

Analytics & Experimentation
3
0
53 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Demonstrate ownership beyond responsibilities

Describe a time you proactively took on work outside your defined responsibility to deliver a measurable business outcome. Include: 1) context, stakes...

Behavioral & Leadership
4
0
33 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Explain background, team structure, and role fit

Answer the following in order: 1) Give a crisp 90‑second self‑introduction tailored to this role, emphasizing 1–2 quantifiable achievements most relev...

Behavioral & Leadership
4
0
56 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Compute CTR overall and by campaign type

Write SQL to compute: (Q1) overall click-through rate (CTR = clicks/impressions) in the last week; (Q2) CTR by campaign_type in the last week. Assume ...

Data Manipulation (SQL/Python)
2
0
8 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Identify non-table data for feature demand

Evaluate Demand for a New "Group Call" Feature Using Non-Table Data and Experiments Context You are a data scientist evaluating whether to invest in a...

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

Design and evaluate P2P payments in messaging

P2P Payments in a Large Messaging App — Design, Measurement, and Risk Plan You are a data scientist at an at-scale messaging platform evaluating a Ven...

Analytics & Experimentation
3
0
32 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Compare first-score vs all-scores estimators

This question evaluates statistical estimation and inference competencies—specifically understanding estimator definitions, weighting and sampling eff...

Statistics & Math
5
0
42 people solved
Oct 13, 2025
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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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