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 Locked

Decide event notification launch via experiments

This question evaluates a data scientist's competency in experimentation design, causal inference under network interference, metric engineering, and ...

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

Evaluate Facebook Dating launch and validate success

Validation Plan: Scaling Facebook Dating from Pilot to Broader Rollout Context: You are a data scientist evaluating whether a limited-market pilot of ...

Analytics & Experimentation
5
1
41 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Estimate revenue of organic shopping tab

Estimate Monthly Revenue for a New Shopping Tab (Organic Only) Context You are evaluating the potential monthly revenue impact of launching a new Shop...

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

Design experiment with network and novelty effects

This question evaluates a data scientist's competence in experimental design and causal inference under network interference and novelty effects, cove...

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

Design an A/B test for WhatsApp call reliability

A/B Test Design: Adaptive Codec for Unstable Networks (WhatsApp Calling) Context You join the Calling organization. A PM proposes enabling an adaptive...

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

Choose group-call size cap via experiment

Decide the Maximum Participants per Group Call: Experiment Plan Context: You need to choose a default cap for group calls (maximum concurrent particip...

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

Demonstrate leadership under ambiguity

Behavioral & Leadership Prompt (Data Scientist) Describe one high-stakes project where priorities changed mid-stream and you had to influence without ...

Behavioral & Leadership
4
0
43 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Design a small-sample launch experiment in Europe

Launch Test Design: Early-Access EU Businesses Context You have an early-access pool of 1,200 EU businesses for a new chat subscription offering. Chat...

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

Design an A/B test for comments UI

This question evaluates experimental design, causal inference, statistical power calculation, variance-reduction techniques, sequential monitoring, an...

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

Choose robust metrics for skewed comments

Robust central tendency and inference for zero‑inflated, heavy‑tailed counts You are evaluating an A/B test on per‑user daily comment counts. The outc...

Statistics & Math
10
2
75 people solved
Oct 13, 2025
Meta logo
Meta
Easy
Data Scientist

Compute conditional occupancy across two rooms

Probability and Bayes Update: Two Rooms Setup There are two rooms. Prior over occupancy states: - With probability 1/3: both rooms are occupied. - Wit...

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

Handle sales pressure with analytical integrity

Interview Scenario: Call Volume vs. Win Rate — Causation vs. Correlation You support Sales as a data scientist. Leadership observed a positive correla...

Behavioral & Leadership
3
0
24 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Compute and correct correlation significance inflation

This question evaluates statistical inference for correlations, multiple testing control (false discovery rate), power and sample-size calculations, a...

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

Design A/B test and success metrics for new feature

Instagram Collections 2.0 — Define Success, Experiment Design, and Measurement Context: You are proposing a new Instagram feature, Shareable Collectio...

Analytics & Experimentation
7
0
53 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Design and justify unread-account pinning experiment

This question evaluates a data scientist's competency in experimental design, causal inference, metric definition, instrumentation, and analysis for p...

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

Compute multi-account actives and unread coverage

You have two tables. Table: notifications +--------+------------+------------+-------------------+--------+ | userid | ds | time | notification_type |...

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

Estimate fake-account prevalence with capture-recapture

This question evaluates a data scientist's competency in capture–recapture estimation, estimation of population size with incomplete detections, stati...

Statistics & Math
3
0
27 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Design a feed ads A/B test with guardrails

Experiment Design: Insert One Extra Ad Every 8 Organic Posts in Main Feed Context You want to increase ad load by inserting one additional ad for ever...

Analytics & Experimentation
2
0
36 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
Hard
Data Scientist

Communicate trade-offs and influence launch

Product Experiment Trade‑off: Notifications for Multi‑Account Users Context You ran an experiment on notification delivery to users who often maintain...

Behavioral & Leadership
1
0
30 people solved
Oct 13, 2025
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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.

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