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

Write SQL for revenue and advertiser analyses

Use the schema below and ANSI SQL. Treat “today” as 2025-09-01. Schema: - active_ads(date DATE, ad_id INT, advertiser_id INT, creation_source VARCHAR,...

Data Manipulation (SQL/Python)
0
0
6 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Write SQL to analyze Group Calls adoption

Write SQL (assume PostgreSQL) to analyze Group Calls adoption and cannibalization. Use this schema and sample data. Schema: - users(user_id INT PRIMAR...

Data Manipulation (SQL/Python)
0
0
4 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Write SQL for initiators and French DAU%

You are given the following PostgreSQL tables. Assume all timestamps are UTC and "today" is 2025-09-01. For any reference to "last 7 days," use the in...

Data Manipulation (SQL/Python)
0
1
6 people solved
Oct 13, 2025
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Meta
Hard
Data Scientist Locked

Design experiments and observational alternatives

This question evaluates causal inference, experimental design, metric definition and measurement, power analysis, segmentation, and observational stud...

Analytics & Experimentation
2
0
30 people solved
Oct 13, 2025
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Meta
Medium
Data Scientist

Write SQL for comment analytics

You are given the following schema and tiny sample data. Schema: - users(user_id INT PRIMARY KEY, country VARCHAR, created_at DATE) - posts(post_id IN...

Data Manipulation (SQL/Python)
0
0
6 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze regression to mean in heavy-tailed shares

Cohort Dynamics of a Right-Skewed Daily Shares Metric Context - You have a right-skewed metric: daily shares per user, with a long tail. - On Day 1, y...

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

Estimate first selection round with/without replacement

This question evaluates understanding of probability and expectation concepts, specifically sampling with and without replacement, per-round success p...

Statistics & Math
2
0
43 people solved
Oct 13, 2025
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Meta
Medium
Data Scientist

Write advanced SQL for sales support analytics

Write SQL for the following schema and tasks. Assume ANSI SQL with DATE_TRUNC and INTERVAL supported. Sample tables (minimal rows shown). accounts +--...

Data Manipulation (SQL/Python)
0
0
6 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Compute shop visibility and intent metrics in SQL

Schema (PostgreSQL). Tables: users(user_id) shops(shop_id, shop_name, merchant_type) posts(post_id, shop_id, is_shoppable BOOLEAN, created_at TIMESTAM...

Data Manipulation (SQL/Python)
0
0
7 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Choose group-call participant cap via distribution

Group Call Cap Decision: QoS vs Reach You are deciding whether to cap the maximum number of participants in a group call. You have the past 28-day dis...

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

Write SQL to infer group-call demand

You are given only 1:1 call logs and a user table. Use SQL to estimate latent demand for a 'Group Call' feature by detecting 10-minute 'call loops' wh...

Data Manipulation (SQL/Python)
1
0
4 people solved
Oct 13, 2025
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Meta
Hard
Data Scientist Locked

Estimate and validate weights for engagement actions

This question evaluates statistical modeling and inference skills including constrained weighting, uncertainty quantification, multicollinearity and s...

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

Design experiment for unconnected content in feed

Analytics & Experimentation Case: Socialness of Friends vs Unconnected Content Context You work on a personalized feed that shows posts from friends a...

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

Design and justify unread-accounts pinning experiment

Experiment Design: Pin Unread Accounts at Top of Account Switcher Context You propose a feature for users who own multiple accounts (same person_id): ...

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

Write SQL to flag coordinated fake accounts

Assume today is 2025-09-01. Schema and tiny samples: users(user_id, created_at, country) 1 | 2025-07-01 | US 2 | 2025-08-10 | IN 3 | 2025-08-15 | US 4...

Data Manipulation (SQL/Python)
0
0
7 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Compute 7-day views and reactions by relationship

Use the schemas and sample data below to answer two tasks. Assume dates are strings in 'YYYY-MM-DD'. Treat "today" as 2025-09-01; "last/past 7 days" m...

Data Manipulation (SQL/Python)
0
0
5 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Join datasets and compute conversion by assignment

You are given two CSVs. Create tables and write SQL to produce both visit-level and visitor-level conversion datasets, then aggregate conversion by as...

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

Design metrics for violating content exposure

Measuring User Exposure to Violating Content on a UGC Platform Context You work on a large-scale user-generated content (UGC) platform that uses autom...

Analytics & Experimentation
2
0
26 people solved
Oct 13, 2025
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Meta
Medium
Data Scientist

Find the most-used app

You work on Oculus app engagement analytics. Tables user_activity - user_id (BIGINT) - date (DATE) — day of activity (assume UTC unless otherwise spec...

Data Manipulation (SQL/Python)
4
0
31 people solved
Aug 17, 2025
Meta logo
Meta
Hard
Data Scientist Locked

How would you measure shop-ads promotion success?

This question evaluates a data scientist's competency in metrics design, experimental evaluation, and causal inference for ads ranking systems, includ...

Analytics & Experimentation
1
0
26 people solved
Aug 10, 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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