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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Measure feature impact with switchback, PSM, and CACE
You work at a ridesharing company and want to measure the impact of a new membership feature on rides-per-user (RPU). Part A — Switchback experimentat...
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
Context You work on Uber’s driver app. Drivers can navigate using either Google Maps or Uber Maps. Separately, Uber shows riders an estimated time of ...
Design an Uber A/B experiment end-to-end
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Design a switchback and choose block length
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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...
Explain and validate A/B test assumptions
A/B Test Validity: Core Assumptions, Violations, Diagnostics, and Mitigations You are designing and evaluating an online A/B test for a large, multi-s...
Design station experiment with interference and rush-hour spillovers
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Compute A/B sample size under clustering
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Formulate hypotheses and compute AB test significance
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Compute maximum concurrent trips from intervals
You’re given n trip intervals [start, end) in seconds, where start < end, representing when a rider’s trip starts and ends in a city on a specific day...
Design an ETA experiment under interference
Experiment Design: Estimating Causal Impact of a New Rider ETA Model in a Two-Sided Marketplace Context You are testing a new rider ETA model that cha...
Design an A/B test for promo-targeting models
Experiment Design: Compare Two Ranking Models (M1 vs M0) for $5 Promotions Context You have two models, M0 (current) and M1 (new), that rank users for...
Choose between A/B and switchback for spillovers
Airport Driver-Queue Algorithm: Experiment Design and Causal Reasoning Background A new driver-queue algorithm is being tested at a single airport wit...
Design and Evaluate an Experiment on Surge
Experiment Design: Surge-Cap Algorithm for NYC (20:00–22:00) Context A new surge-cap algorithm is proposed to improve rider trip completion in NYC dur...
Define ride success metric for Uber
Define a single primary metric for "Uber ride success" Design one primary, comparable metric for ride success across markets and cohorts. Provide: 1) ...
Measure Impact of Updated Rider ETA Algorithm
Scenario A ride-hailing company has updated its rider ETA-prediction algorithm (the ETA shown to riders before they request a trip) and wants to quant...
Differentiate Type I vs II errors under costs
Ship/No-Ship Decision: Type I/II Errors, Cost-Sensitive Testing, Sample Size, and Multiple Testing Context You are deciding whether to ship a new disp...
Diagnose location-sorted recommender causing revenue drop
Eats recommendations were changed to rank items primarily by distance to the user; after launch, add-to-cart rate rose but revenue per session fell. D...
Implement sqrt with Newton vs binary search
Implement numerically robust square-root routines and analyze convergence Task 1 — sqrt_newton(x, tol=1e-12) Implement a Python function that returns ...