Tech Interview Questions

Practice 9,160+ interview questions from top companies including Google, Meta, Amazon, and more. Filter by company, role, and category.

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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
Uber logo
Uber
Hard
Data Scientist

Evaluate New Model's Impact on Rider and Driver Experience

Evaluate New Model's Impact on Rider and Driver Experience Airport Pickups ETA Model: Evaluation and Experiment Design Context A new model predicts ri...

Analytics & Experimentation
11
0
82 people solved
Aug 4, 2025
Uber logo
Uber
Hard
Data Scientist

Improve Estimated Time of Arrival for Uber Riders

Improve Estimated Time of Arrival for Uber Riders Scenario Ride-hailing platform: understanding and improving the Estimated Time of Arrival (ETA) show...

Analytics & Experimentation
9
0
114 people solved
Aug 4, 2025
Yahoo logo
Yahoo
Medium
Data Scientist

Prove Equal Probability Impossible with Relabeled Dice Faces

Prove Equal Probability Impossible with Relabeled Dice Faces Uniform Sums from Two Relabeled Fair Dice Setup You have two fair six-sided dice. You may...

Statistics & Math
71
0
40 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Quantify Latent Demand for Group Video Calling Feature

Quantify Latent Demand for Group Video Calling Feature Scenario A consumer messaging app is preparing to launch group video calling. You have access t...

Analytics & Experimentation
3
0
25 people solved
Aug 4, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Design Experiments to Measure Promotion Scheduling Impact

Design Experiments to Measure Promotion Scheduling Impact Scenario A food delivery marketplace is releasing flexible promotion scheduling (e.g., time-...

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

Analyze Key Metrics for Notification System Success

Analyze Key Metrics for Notification System Success Scenario You are evaluating a new push-notification system for a social app. The goal is to determ...

Analytics & Experimentation
3
0
48 people solved
Aug 4, 2025
Upstart logo
Upstart
Easy
Data Scientist

Calculate Particle Survival Probability After Time t

Calculate Particle Survival Probability After Time t Radioactive-Decay Style Probability Context You have 100 identical, independent particles. Each p...

Statistics & Math
7
0
113 people solved
Aug 4, 2025
Spokeo logo
Spokeo
Medium
Data Scientist

Solve Logic Puzzles: Algorithms and Proofs Required

Solve Logic Puzzles: Algorithms and Proofs Required Scenario On-site logic/algorithm quiz with hiring manager and VP Question Solve six AMC-8–level ma...

Coding & Algorithms
4
0
34 people solved
Aug 4, 2025
Spokeo logo
Spokeo
Medium
Data Scientist

Design a Controlled TV-Advertising Experiment for Sign-Ups

Design a Controlled TV-Advertising Experiment for Sign-Ups Controlled TV Advertising Experiment: Incremental Website Sign-ups Context You are asked to...

Analytics & Experimentation
4
0
29 people solved
Aug 4, 2025
Spokeo logo
Spokeo
Medium
Data Scientist

Explain Key Terms in Model Evaluation for Fraud Detection

Explain Key Terms in Model Evaluation for Fraud Detection Model Evaluation Terminology and Business Trade-offs Scenario Phone screen focused on unders...

Machine Learning
3
0
36 people solved
Aug 4, 2025
Spokeo logo
Spokeo
Medium
Data Scientist

Answer Statistics Questions for Spokeo DS Role Quiz

Answer Statistics Questions for Spokeo DS Role Quiz Timed Statistics Quiz: Short-Answer Concepts Answer the following independent questions succinctly...

Statistics & Math
2
0
27 people solved
Aug 4, 2025
OneMain Financial logo
OneMain Financial
Easy
Data Scientist

Calculate Break-even for New Credit Card Product Launch

Calculate Break-even for New Credit Card Product Launch Break-Even for a Credit Card with Annual Fee, Interchange, and Cashback Context You are evalua...

Analytics & Experimentation
14
0
108 people solved
Aug 4, 2025
Experian logo
Experian
Medium
Data Scientist

Align Personal Goals with Experian DataLabs' Mission

Align Personal Goals with Experian DataLabs' Mission Behavioral Question — Motivation, Mission Alignment, and AWS Experience Context You are interview...

Behavioral & Leadership
2
0
31 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Influence Stakeholders for Product Decision at Meta

Influence Stakeholders for Product Decision at Meta Behavioral: Influencing Stakeholders To Drive a Product Decision Scenario Cross-functional product...

Behavioral & Leadership
4
0
35 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Design A/B Test to Evaluate New Video-Feed Feature

Design A/B Test to Evaluate New Video-Feed Feature Scenario A consumer social-media app is launching a short‑video feed (TikTok-style). A newly added ...

Analytics & Experimentation
2
0
28 people solved
Aug 4, 2025
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

Convince Leadership to Launch Group Chat Feature

Convince Leadership to Launch Group Chat Feature Evaluating a Group Chat / Group Video-Call Feature for Instagram Context You are a Data Scientist ask...

Analytics & Experimentation
6
0
43 people solved
Aug 4, 2025