Uber Data Scientist Interview Questions
If you’re preparing for Uber Data Scientist interview questions, expect a mix that reflects Uber’s massive, time-sensitive two‑sided marketplace: interviewers evaluate your ability to turn large, temporal datasets into actionable business decisions under operational constraints. Distinctive elements include heavy SQL usage (especially window functions and time‑based aggregations), experimentation and causal reasoning for A/B testing, product‑analytics cases that probe metric design and root‑cause analysis, plus Python and occasional machine‑learning discussions. Interviewers look for clear problem framing, pragmatic tradeoffs, and the ability to communicate results to cross‑functional partners. For interview preparation focus on three things: practice writing concise, correct SQL for real‑world time‑series problems; rehearse product analytics and experiment design scenarios with quantified tradeoffs; and polish behavioral stories that show ownership and collaboration. Simulate live coding on plain editors or CoderPad, time yourself on case problems, and prepare to explain assumptions and next steps rather than chasing perfect answers. This approach helps you demonstrate the speed, judgment, and impact Uber typically expects from its data scientists.

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Design a robust email A/B test
A/B Test Design: New Email Subject Line for Weekly Campaign You manage a weekly email campaign to 10 million users. Baseline unique click-through rate...
Demonstrate business impact from a project
Behavioral Deep-Dive: Business Impact of a Prior Project (Technical Screen) Context: In a Data Scientist technical screen for a large two‑sided market...
How to experiment on ETA reduction
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Move zeros to the front
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How would you build UberEats ranking?
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How would you evaluate UberEats growth?
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Evaluate business value of lower ETA
This question evaluates experimental design, causal inference, metric definition, statistical interpretation, and marketplace analytics in the context...
Design an Uber feature and analyze safety
You are interviewing for a Data Scientist summer internship at a ride-sharing marketplace. Part A: Product case Uber wants ideas for a new rider-facin...
Derive a CDF from a PDF
This question evaluates a candidate's understanding of the relationship between probability density functions and cumulative distribution functions, i...
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...
Improve Estimated Time of Arrival for Uber Riders
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Calculate January-2024 SF Promotion Impact Using SQL Queries
campaign_users +---------+-----------+ | user_id | treatment | +---------+-----------+ | 1001 | control | | 1002 | test | | 1003 | con...
Transform DataFrame and compute diff-in-diff
You are given a pandas DataFrame df with the following columns: - unit_id (string): entity identifier (e.g., user, city, driver) - group (string): eit...
Design metrics and A/B test for maps and ETA
This question evaluates proficiency in metrics design, causal inference, and experimentation for product and marketplace features, specifically testin...
Formulate OR model to reduce driver backtracking
Define and reduce driver ‘backtracking’ in a marketplace. First, define a quantitative backtracking metric B per driver-hour from GPS and assignment l...
Design station experiment with interference and rush-hour spillovers
This question evaluates a data scientist's competency in experimental design and causal inference under interference and non-stationarity, covering sk...
Differentiate Type I vs II errors under costs
This question evaluates understanding of hypothesis testing (Type I/II errors), cost-sensitive decision theory, sample size calculation for proportion...
Write SQL for active counts and YTD top driver
Given the following schema and sample data, write SQL to: (a) return the total count of active riders and active drivers on the platform; (b) return t...
Estimate causal effect with interference
A/B Test With Noncompliance and Interference: Causal Effect of Surge Recommendations on Completed Trips Context You ran an A/B test that assigned some...
Choose between A/B and switchback for spillovers
This question evaluates experimental-design and causal-inference competencies, specifically handling interference and spillovers, defining experimenta...