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

Estimate delayed CVR nonparametrically with censored data

Today is 2025-09-01. We need the 14-day conversion rate (CVR14) for impressions served between 2025-08-18 and 2025-09-01, but many conversions occur w...

Statistics & Math
8
0
58 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Replace legacy ads model safely

Facebook Ads Ranking Replacement: M0 to M1 You are asked to replace a legacy ads ranking model (M0) with a new model (M1) in a large-scale feed ads sy...

Machine Learning
7
0
49 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Size opportunity and prioritize experiments

New E‑commerce Product Line: Pre‑Investment Quantification and Test Plan You are evaluating whether to invest engineering and operational resources to...

Analytics & Experimentation
6
0
49 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze DAU comments distribution and resampling

Consider the metric comments_per_DAU (number of comments a daily active user makes in a day). a) Shape: Describe and justify the expected distribution...

Statistics & Math
7
1
71 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Build predictive model for feature rollout targeting

Before global launch, you want to predict which users or products would benefit most from the 'More like this' button so you can stage rollout. Design...

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

Select interest thresholds under skewness and cost

Profit-Optimal Threshold Selection from an Interest Score You have a per-user interest_score s ∈ [0, 1] for a new feature. The score distribution appe...

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

Navigate reschedules, offers, and team-match uncertainty

Behavioral + Due Diligence + Risk Management (Data Scientist — Onsite) Context You are a Data Scientist candidate approaching an onsite. You are juggl...

Behavioral & Leadership
8
0
57 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Choose tests and solve distribution parameters

Engagement Comparison: New vs Existing Users (2025-08-05 → 2025-09-01) Context: You have per-user daily session counts (integer, skewed, many zeros) f...

Statistics & Math
5
0
58 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Evaluate fraud classifier with cost-sensitive metrics

Binary Fraud Classifier: Metrics, Thresholding, Calibration, and Online Evaluation You inherit a binary fraud classifier used to decide whether to blo...

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

Evaluate shopping tab pre- and post-launch

Instagram Shopping Tab — Measuring Off‑App Purchases, Opportunity Sizing, and Launch Readout Context Instagram is planning a new Shopping tab. Users o...

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

Estimate CTR lift with binomial tests and errors

A/B Test Inference, Peeking, and Multiple Comparisons You run a two-arm A/B test of click-through rate (CTR). - Control: n_c = 10,000,000 impressions,...

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

Compute fraud probabilities with Bayes and Binomial

Fake-Account Detection with Binomial Sessions and Bayes Updating You are evaluating a rules-based detector for fake accounts on an online platform. Ea...

Statistics & Math
10
2
92 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Lead a product deep dive with quantified impact

Behavioral Product Leadership Prompt (Data Scientist) You are interviewing for a Data Scientist role with a strong focus on product analytics, experim...

Behavioral & Leadership
10
0
103 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Design a restaurant recommender under cold start

Design a Multi-Objective Restaurant Ranking System You own the restaurant recommendation surface for a city app. The goal is to rank nearby restaurant...

Machine Learning
3
0
45 people solved
Oct 13, 2025
Meta logo
Meta
Easy
Data Scientist

Define engagement metrics and analyze comment distribution

You are a Data Scientist for a video platform. A PM asks you to: 1) Define metrics for “engagement” (they want a clear metric framework they can use i...

Analytics & Experimentation
11
0
89 people solved
Dec 6, 2025
Meta logo
Meta
Medium
Data Scientist

What features and feature selection would you use?

Context You are building an ML system to rank/promote shop ads in an e-commerce feed/search page. At serving time, the system may score candidate shop...

Machine Learning
3
0
32 people solved
Aug 10, 2025
Meta logo
Meta
Medium
Data Scientist

Define and Measure Effective Read on Newsfeed

Define and Measure Effective Read on Newsfeed Designing an "Effective Read" Metric for a Newsfeed Scenario You are tasked with defining and measuring ...

Analytics & Experimentation
2
0
24 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Evaluate Success of Group Video Feature with Key Metrics

Evaluate Success of Group Video Feature with Key Metrics Evaluate the Success of a New Group Video Feature Context You are assessing the launch of a G...

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

Construct a 95% Confidence Interval for Comment Counts

Construct a 95% Confidence Interval for Comment Counts Comment Activity Analysis: Mean CI, Sampling Distribution, and 95th Percentile Context You have...

Statistics & Math
3
0
43 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Influence Stakeholders Without Authority: Strategies and Outcomes

Influence Stakeholders Without Authority: Strategies and Outcomes Scenario Meta Data Scientist onsite behavioral & leadership loop. The interviewer pr...

Behavioral & Leadership
22
0
99 people solved
Aug 4, 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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