Tech Interview Questions

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Machine Learning Engineer + Data Scientist + Software Engineer Interview Questions

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9.2k Questions 486 Companies08.11.2026
Showing 20 results
Role
Meta logo
Meta
Medium
Data Scientist

Analyze Seller Activity and Vehicle Listing Interactions

Analyze Seller Activity and Vehicle Listing Interactions listing_interaction +-----------+-----------+------------+------------+----+ | buyer_id | se...

Data Manipulation (SQL/Python)
5
0
44 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Identify Probability of Request Originating from Bad User

Identify Probability of Request Originating from Bad User Measuring Abuse in Friend-Requests: Bayes, Identification, and Precision Scenario A social-n...

Statistics & Math
5
0
35 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Determine User Demand for New Video-Calling Feature

Determine User Demand for New Video-Calling Feature Analytics Design: Demand Sizing, Evaluation Metrics, and Trade-offs for a New Video-Calling Featur...

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

Determine Success Metrics for Instagram Video-Call Feature

Determine Success Metrics for Instagram Video-Call Feature Instagram Group Video-Call MVP: Defining Success and Metrics Context You are the data scien...

Analytics & Experimentation
3
0
27 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Detect and Reduce Spammy Friend Requests Effectively

Detect and Reduce Spammy Friend Requests Effectively Detecting Spammy Friend Requests Context Assume a consumer social platform where users can send f...

Machine Learning
2
0
26 people solved
Aug 4, 2025
Experian logo
Experian
Medium
Data Scientist

Why Join Experian DataLabs? Exploring Cultural Fit and Collaboration

Why Join Experian DataLabs? Exploring Cultural Fit and Collaboration Behavioral: Mission Alignment and Collaboration Context You are interviewing for ...

Behavioral & Leadership
2
0
38 people solved
Aug 4, 2025
Experian logo
Experian
Easy
Data Scientist

Calculate Expected Flips for Two Heads Coin Toss

Calculate Expected Flips for Two Heads Coin Toss Scenario Experian DataLabs online assessment – core probability section. Several short probability pr...

Statistics & Math
7
0
89 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Determine User Need for In-App Video Call Feature

Determine User Need for In-App Video Call Feature Scenario A consumer messaging app is considering launching an in-app Video Call feature. You have ac...

Analytics & Experimentation
2
0
28 people solved
Aug 4, 2025
Capital One logo
Capital One
Easy
Data Scientist

Calculate Profitability and Break-Even for Lyft Partnership Campaign

Calculate Profitability and Break-Even for Lyft Partnership Campaign Credit Card Unit Economics and Lyft Co‑Marketing Break‑Even Context You are evalu...

Analytics & Experimentation
5
0
47 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Boost Engagement and Purchases in Meta Social Products

Boost Engagement and Purchases in Meta Social Products Meta Social Products: Driving Comments in Facebook Groups and In‑App Purchases on Instagram Con...

Analytics & Experimentation
2
0
30 people solved
Aug 4, 2025
Apple logo
Apple
Medium
Data Scientist

Compute and Rank Store Revenue by Region Using Pandas

Sales +------------+---------+------------+--------+---------+ | date | store_id| product_id | units | revenue | +------------+---------+------...

Data Manipulation (SQL/Python)
0
1
10 people solved
Aug 4, 2025
Meta logo
Meta
Easy
Data Scientist

Determine Significance of Model B's Performance Improvement

Determine Significance of Model B's Performance Improvement A/B Test: Two-Proportion Z-Test for Success Rates Scenario You ran an A/B test comparing t...

Analytics & Experimentation
3
0
28 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Data Scientist

Explain Central Limit Theorem and Its Limitations

Explain Central Limit Theorem and Its Limitations Statistics Concepts and Disease-Test Evaluation Context You are assessing core statistical concepts ...

Statistics & Math
7
0
59 people solved
Aug 4, 2025
BetterHelp logo
BetterHelp
Hard
Data Scientist

Optimize Experiment Thresholds for Impactful Feature Launches

Optimize Experiment Thresholds for Impactful Feature Launches Scenario You are the data scientist for a consumer health product running ~100 concurren...

Analytics & Experimentation
7
0
52 people solved
Aug 4, 2025
CloudTrucks logo
CloudTrucks
Medium
Data Scientist

Determine North-Star Metric for CloudTrucks Driver Platform

Determine North-Star Metric for CloudTrucks Driver Platform Product Analytics Case: North-Star Metric and Booking Funnel (Driver Platform) Context You...

Analytics & Experimentation
1
0
19 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Identify Algorithms for Detecting Malicious Duplicated Content

Identify Algorithms for Detecting Malicious Duplicated Content Detecting Malicious Duplicated Text (DOT) Scenario You are selecting technical approach...

Machine Learning
5
0
46 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Reflect on Conflict Resolution and Key Learnings

Reflect on Conflict Resolution and Key Learnings Behavioral Interview Prompts (Data Scientist, Onsite) Instructions Use the STAR framework (Situation,...

Behavioral & Leadership
3
0
28 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Estimate Fake Accounts Using Data Signals and Sampling

Estimate Fake Accounts Using Data Signals and Sampling Estimating Fake Accounts on a Social Network Background A large social platform wants to estima...

Analytics & Experimentation
5
0
42 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Data Scientist

Design a Churn Model: Handle Missing Data and Justify

Design a Churn Model: Handle Missing Data and Justify Churn Prediction on Messy Subscription Data Context You are building a binary churn-prediction m...

Machine Learning
2
0
40 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Data Scientist

Explain Propensity Score Matching and Assess Covariate Balance

Explain Propensity Score Matching and Assess Covariate Balance Propensity Score Matching (PSM) Context You have observational data with a binary treat...

Statistics & Math
3
0
62 people solved
Aug 4, 2025