Meta Analytics & Experimentation Interview Questions
Practice 1,129 real Meta interview questions for 2026. Covers top categories — Coding & Algorithms, Analytics & Experimentation, Data Manipulation (SQL/Python), Behavioral & Leadership, and System Design — across Software Engineer, Data Scientist, Machine Learning Engineer, Data Engineer, and Product Manager roles. Real questions from actual interviews with detailed solutions. Expect a software-engineering-heavy loop: timed algorithmic coding (trees, arrays, graph/maze problems, delimiter/CSV parsing), system-design prompts like leaderboards, flight search and online-judge architectures, and an increasingly common AI-assisted coding round that mirrors real workflows. Data Scientist rounds emphasize product analytics and experimentation—designing tests, diagnosing spend drops and bots, evaluating unconnected content, and writing SQL for multi-account, seller, and vehicle metrics. Machine Learning Engineer questions skew toward recommender and ranking work (place and friend recommendation, sparse-matrix ops, linear-regression derivations, newsfeed dislike models). Data Engineers focus on data modeling, ETL, capacity calculations, reservations/utilization queries, and production SQL/Python tasks. For interview preparation, prioritize timed coding practice, system-design templates, rigorous SQL drills (joins/CTEs/aggregation), clear A/B-testing frameworks, and concise STAR behavioral stories tied to measurable impact.
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Analyze VR App Usage and Engagement Metrics
vr_usage +---------+------------+---------+------------+----------+ | user_id | date | app_id | session_id | duration | +---------+------------...
Calculate Total Interactions for Each Product
Interactions +----------+-----------+------------+--------------+ | buyer_id | seller_id | product_id | interactions | +----------+-----------+-------...
Analyze Data to Boost Group Post Comment Rates
Scenario A social shopping platform wants to increase the share of group posts that receive at least one comment. Task Design a rigorous analytics and...
How to Validate Friends' Content Engagement Hypothesis?
Scenario A product team at Meta wants to understand whether content from a viewer's friends (connected authors) drives more 'social' engagement than c...
Evaluate the Health of Facebook Groups
Group Health Metrics and Experiment Design for Threaded Comments Context You are a Data Scientist working on a platform with Groups that range from sm...
Evaluate Social Media's Brand Advertising Effectiveness
Measuring Brand Advertising Effectiveness on Social Media Scenario A retailer runs both direct-response (DR; optimized for immediate conversions) and ...
Determining the optimal ad load in News Feed
Scenario: Balancing Monetization and User Experience You are asked to set a data-driven threshold for ad frequency ("ad load" = number of ads shown pe...
Design Experiment to Measure Shopping Feature Impact
Experiment Design: Measuring Instagram Shopping's Impact Scenario Instagram is launching an in-app Shopping feature (e.g., product tags, shop surfaces...
Design keyword search for social posts
Design a Facebook-like post search feature: - Input: one or more keywords. - Output: all (or top-K) posts that contain the keyword(s). - Assume posts ...
Core Behavioral Reflections
Behavioral & Leadership Interview Prompts (Product Manager, Onsite) Context You are interviewing onsite for a Product Manager role. Provide concise, s...
Program Execution Deep Dive
End-to-End Product Leadership Prompt Describe an end-to-end program or product you led. - How did you capture and prioritize requirements? - How did y...
Hyperlink Request Flow at Facebook
End-to-End Flow: Clicking a Hyperlink in a Facebook Feature Prompt Walk through what happens, end to end, when a user clicks a hyperlink within a Face...
Children’s Bookshelf Product Design
Product Design Prompt: Children's Bookshelf You are asked to design a bookshelf for children. Assume this is a primarily physical product used at home...
[Analytics Reasoning] Impact of Malicious Accounts on Meta
Social Network: Friend-Request Risk and Bad-Account Detection Context and Assumptions - On a large social network (similar to Facebook), 1% of account...
Add two binary strings
You are given two binary strings a and b (each consisting only of characters '0' and '1'). Return their sum as a binary string. Input - a: string, len...
Compute tree right view and target-sum subarrays
You are given two separate programming tasks. --- Task 1: Right-side view of a binary tree You are given the root of a binary tree. Imagine standing o...
Describe conflict resolution and mentoring experiences
You are interviewing for an engineering manager (or senior engineer) role. The interviewer asks you to answer several behavioral questions: 1. Conflic...
Define and analyze product metrics
Product Analytics Case: Short‑Form Video Feed Context: You are evaluating a short‑form video feed feature inside a large social app where users swipe ...
Find mode or minimum with time-space tradeoffs
For an unsorted array of integers, implement two functions: ( 1) return the minimum value; ( 2) return the value that appears most frequently (the mod...
Traverse binary tree by levels with constraints
Given a binary tree and a predicate P(node), perform a level-by-level traversal that collects, for each level, only the nodes whose values satisfy P. ...