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

How would you evaluate stolen-post detection?

You are interviewing for a Meta DSA (product analytics / data science) role. The product team is launching a new Stolen Post Detection algorithm that ...

Analytics & Experimentation
110
2
1035 people solved
Mar 5, 2026
Meta logo
Meta
Medium
Data Scientist

Design video-ads experiment and handle null results

You are launching a new video-ad format. Design an end-to-end A/B test to evaluate it against the current ad format. Be precise: 1) Define exposure an...

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

How would you design a Shop Ads ranking algorithm?

This question evaluates a candidate's understanding of machine learning-driven ad ranking, auction mechanics, multi-stakeholder objective formulation,...

Machine Learning
7
0
80 people solved
Feb 12, 2026
Meta logo
Meta
Medium
Data Scientist Locked

Analyze advertiser spend by source

This question evaluates proficiency in data manipulation and analytics using SQL or Python, testing skills such as joins, time-based filtering, cohort...

Data Manipulation (SQL/Python)
5
0
44 people solved
Feb 9, 2026
Meta logo
Meta
Hard
Data Scientist Locked

Design a clustered A/B test with spillovers

This question evaluates a data scientist's understanding of cluster-randomized experiments with spillovers, covering causal inference under interferen...

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

How would you evaluate emoji reactions launch?

This question evaluates a data scientist's competency in analytics and experimentation, covering metric framework design, A/B testing and quasi-experi...

Analytics & Experimentation
41
0
484 people solved
Feb 21, 2026
Meta logo
Meta
Medium
Data Scientist Locked

Should WhatsApp launch group calls?

This question evaluates a data scientist's skills in experiment design, product analytics, metric definition, causal inference, and managing network e...

Analytics & Experimentation
17
0
122 people solved
Mar 24, 2026
Meta logo
Meta
Easy
Data Scientist

Handle feedback, change pivots, and conflict

Question In the behavioral portion of the Meta Data Scientist screen, answer the following leadership prompts using concrete examples from your own wo...

Behavioral & Leadership
3
0
72 people solved
Feb 16, 2026
Meta logo
Meta
Easy
Data Scientist Locked

Compute CTR for peak vs non-peak hours

This question evaluates a candidate's ability to compute time-based click-through rate metrics using SQL and data manipulation techniques, including j...

Data Manipulation (SQL/Python)
9
0
64 people solved
Feb 16, 2026
Meta logo
Meta
Medium
Data Scientist

Design an ad recommendation and ranking system

You are building an ad recommendation/ranking system for a content feed (e.g., short-form videos). At each feed position, you may show either an organ...

Machine Learning
10
0
83 people solved
Oct 20, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Write SQL for multi-account metrics

This question evaluates proficiency in SQL for multi-table aggregation, grouping, joins, and conditional counting within a user-account-notification s...

Data Manipulation (SQL/Python)
7
1
52 people solved
Mar 16, 2026
Meta logo
Meta
Hard
Data Scientist

Deploy multi-armed bandits safely

Online bandit with 3 variants, churn guardrail, and delayed conversions Context You are running an online experiment with 3 variants (including contro...

Machine Learning
8
0
70 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Choose and compute recommender evaluation metrics

Restaurant Recommender: Offline Evaluation and Modeling Context: You are scoring p(y=1|x) with logistic regression to predict if a user will engage wi...

Machine Learning
6
0
62 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Design an A/B test for pinned-unread feature

Experiment Design: Evaluating a Pinned-Unread Chat Feature Context You are evaluating a new messaging feature that pins chats with unread messages to ...

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

Which clustering algorithm would you use and why

Question You need to cluster users for a social product (e.g. Meta) to discover meaningful groups such as communities, interest groups, or usage segme...

Machine Learning
4
0
60 people solved
Nov 2, 2025
Meta logo
Meta
Medium
Data Scientist

Describe a high-impact product project

In a conversation with a Head of Product, you are asked to discuss one project in depth. Describe a product or marketplace project where you had meani...

Behavioral & Leadership
6
0
75 people solved
Mar 11, 2026
Meta logo
Meta
Hard
Data Scientist

Determine Success Metrics for Circle Feature Optimization

Determine Success Metrics for Circle Feature Optimization Scenario Meta is evaluating a new social feature called Circle (similar to Facebook Groups),...

Analytics & Experimentation
11
0
75 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

How would you validate a driving simulator’s realism?

You work on autonomous driving evaluation. You have two datasets for the same set of driving scenarios: - Real-world logs collected from vehicles (gro...

Analytics & Experimentation
6
0
44 people solved
Nov 24, 2025
Meta logo
Meta
Hard
Data Scientist

How would you design Shop-ad ranking?

Suppose the previous experiment shows that, in some contexts, users are more likely to convert when shown an ad that leads to an in-app Shop rather th...

Machine Learning
7
0
48 people solved
Oct 16, 2025
Meta logo
Meta
Hard
Data Scientist

Choose alternatives when randomization fails

Causal Impact of an Autoloaded Feature Without Clean Randomization Context You need to estimate the causal effect of a new autoloaded feature that is ...

Analytics & Experimentation
3
0
45 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