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 Locked

Measure fake account prevalence

This question evaluates a data scientist's competency in fraud measurement, statistical estimation, experimental design, and model evaluation for dete...

Analytics & Experimentation
4
0
42 people solved
Feb 22, 2026
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Meta
Medium
Data Scientist Locked

Find least active countries

This question evaluates proficiency in SQL-based data manipulation and analytics, focusing on time-based filtering, distinct aggregation, grouping, th...

Data Manipulation (SQL/Python)
4
1
42 people solved
Feb 22, 2026
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Meta
Easy
Data Scientist Locked

Detect bots using comment distribution patterns

This question evaluates a candidate's competency in behavioral analytics, feature engineering, anomaly and bot detection, statistical validation, and ...

Analytics & Experimentation
4
0
58 people solved
Feb 16, 2026
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Meta
Medium
Data Scientist Locked

Write SQL for seller and category metrics

This question evaluates proficiency in SQL data manipulation—principally joins, aggregations, grouping, filtering, date arithmetic, and safe handling ...

Data Manipulation (SQL/Python)
5
1
34 people solved
Feb 15, 2026
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Meta
Medium
Data Scientist Locked

Evaluate Notification-Based Account Ranking

This question evaluates a data scientist's competency in causal inference, A/B test and experiment design, metric definition and selection, statistica...

Analytics & Experimentation
3
0
22 people solved
Feb 9, 2026
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Meta
Easy
Data Scientist

Compute multi-account user distribution and unread pct

You are working on a product where a user can have multiple accounts, and each account can receive notifications. Tables Assume the following schemas:...

Data Manipulation (SQL/Python)
4
0
36 people solved
Feb 3, 2026
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Meta
Medium
Data Scientist

Evaluating the Impact of Duplicate and Stolen Posts on a Content Platform

Evaluating the Impact of Duplicate and Stolen Posts on a Content Platform You are a data scientist at a large user-generated-content platform (think a...

Analytics & Experimentation
0
0
9 people solved
Feb 1, 2026
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Meta
Easy
Data Scientist

Compute ads revenue by geography in SQL

You have ad delivery logs for a shop-ads system. Tables ad_impressions - impression_id STRING (PK) - ts TIMESTAMP (UTC) - user_id STRING - shop_id STR...

Data Manipulation (SQL/Python)
29
5
208 people solved
Jan 17, 2026
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Meta
Medium
Data Scientist

Write SQL for CTR and revenue

Write SQL for the following two tasks. Problem 1: CTR during peak vs. non-peak hours You are given three tables: - ads(ad_id BIGINT, advertiser_id BIG...

Data Manipulation (SQL/Python)
6
1
42 people solved
Jan 3, 2026
Meta logo
Meta
Easy
Data Scientist

Compute percent of active users with 50+ calls

Problem You work on a Messenger-like app. You want to measure how many active users in Great Britain (GB) today have been heavy callers recently. Tabl...

Data Manipulation (SQL/Python)
8
1
109 people solved
Dec 8, 2025
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Meta
Easy
Data Scientist

Compute active ad revenue by creation source

You work on an ads platform and need to report active ad revenue broken down by the ad’s creation source. Tables ads - ad_id BIGINT PK - advertiser_id...

Data Manipulation (SQL/Python)
3
0
27 people solved
Dec 6, 2025
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Meta
Medium
Data Scientist

Detect earliest collision among moving cars

You are given n vehicles with kinematics parameters. A “collision” means two vehicles occupy the same position at the same time. Assume continuous tim...

Coding & Algorithms
4
0
30 people solved
Dec 4, 2025
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Meta
Medium
Data Scientist

How do you expand nested placeholders in strings?

You are given a dictionary of string templates. Keys are identifiers like X, Y, Z. A template may contain placeholders of the form %KEY%, which should...

Coding & Algorithms
3
0
35 people solved
Nov 24, 2025
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Meta
Hard
Data Scientist Locked

How to design Shop ad ranking

This question evaluates a candidate's expertise in machine learning and data science for ad ranking systems, including objective formulation and trade...

Machine Learning
3
0
28 people solved
Oct 26, 2025
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Meta
Medium
Data Scientist

Write SQL to analyze shop visibility

You are given two tables. Use standard SQL (window functions allowed). Assume "today" is 2025-09-01 and that “currently visible” means a shop’s last s...

Data Manipulation (SQL/Python)
1
0
2 people solved
Oct 13, 2025
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Meta
Medium
Data Scientist

Write SQL for video-call recipients and FR activity

Given the schema and samples below, write ANSI‑SQL to answer both questions. Assume dates are stored in UTC. Today is 2025-09-01, so “yesterday” is 20...

Data Manipulation (SQL/Python)
61
1
569 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Write SQL/pandas for KPI anomaly

Write SQL (and outline equivalent pandas) for a KPI anomaly investigation. Assume today = '2025-09-01'. Schema: Users(user_id INT, country TEXT, signu...

Data Manipulation (SQL/Python)
9
0
78 people solved
Oct 13, 2025
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Meta
Medium
Data Scientist Locked

Diagnose a sudden KPI drop

This question evaluates operational analytics and experimentation competencies, including instrumentation and data-quality checks, de-seasonalization ...

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

Write SQL for daily chats and fast replies

You are given a messaging events table that records one row per message sent. Schema - messages( date DATE, -- calendar date of event (UTC) ts TIMES...

Data Manipulation (SQL/Python)
3
0
4 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Design experiment for fake accounts impact

Experiment Design: Removing Detected Fake Accounts and Measuring Causal Impact Context: You are designing an end-to-end experiment on a large, interac...

Analytics & Experimentation
2
0
50 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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