Uber Coding & Algorithms Interview Questions
Practice 303 real Uber interview questions for 2026. Covers top categories — Coding & Algorithms, Analytics & Experimentation, Machine Learning, Behavioral & Leadership, Statistics & Math — across Software Engineer, Data Scientist, Machine Learning Engineer, and Technical Program Manager roles. Real questions from actual interviews with detailed solutions, focused guidance, and concrete interview preparation so you can practice the exact problem types Uber asks. Expect a coding-heavy loop for software engineering candidates: timed algorithm problems, online-assessment style OAs, and system-design tasks. For Software Engineer roles the recurring technical themes here are algorithm puzzles (kth-smallest-in-BST, knight/grid and reversal problems, prime-ending path counts), OA-style coding questions, and product-oriented design prompts such as a pickup-area driver queue and global nearby-restaurant search. Data Scientist questions center on membership/discount experiments, cold-start restaurant ratings and their launch evaluation, driver-acceptance modeling, and marketplace-impact analyses. Machine Learning Engineer prompts focus on completion-rate gaps, implementing attention and regression models, feed-ranking and restaurant-recommendation design, and pickup-location optimization. TPM items emphasize delivery-address fixes, competitive product comparisons, and leadership stories. Prepare by timing practice coding, rehearsing marketplace case studies, building short model write-ups, and polishing STAR examples for behavioral rounds.
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Can one car serve all riders?
This question evaluates understanding of interval scheduling and conflict detection, testing skills in time-interval reasoning, sorting, and efficient...
Simulate views on an n-ary tree
Given a rooted, ordered n-ary tree (each node has a value and an ordered list of children), simulate an observer who starts at the bottom-left, moves ...
Design structure for bottom-K customers by revenue
This question evaluates data structure design and algorithmic complexity for dynamic order-statistics and update operations, focusing on maintaining c...
Solve Two OA Algorithm Problems
These problems evaluate algorithmic optimization and graph connectivity competencies, specifically cost-constrained integer resource allocation for th...
Fix unclear delivery addresses
A customer does not receive a delivery because the delivery address is unclear. As a product or operations leader, explain how you would diagnose the ...
Answer core behavioral questions
You are interviewing for a Senior Program Manager role at Uber. Prepare strong, concise answers to these behavioral questions: 1. Why Uber? 2. Why are...
Produce a valid deployment order
You are given N services and a list of dependency pairs (A, B) meaning service B must be deployed before service A. Compute any valid deployment order...
Define market-only rider experience metrics
Market-only Rider Experience Metrics and Market Balance Index (MBI) You are designing a metric suite for a rides marketplace where "rider experience" ...
Investigate ride declines and test free trials
LA Shared Rides Down 10% MoM — Diagnostic And Action Plan Context: The Los Angeles market is seeing a 10% month-over-month decline in completed rides ...
Analyze Cancellation Change with Statistics
A/B change in cancellation rate (before vs after) Context: You are evaluating a small product tweak intended to reduce cancellations. Treat each trip ...
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...
Evaluate impact without randomized experiments
Estimating a Promotion's Causal Effect Without an Experiment Context You need to estimate the causal impact of a marketing promotion on engagement (e....
Design an RCT for app-open discount
Design an RCT for an "X dollars off on app open" promotion in a two‑sided marketplace Context You operate a two‑sided marketplace mobile app (e.g., ri...
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...
Evaluate Push Notification Impact on Rideshare Supply Shortages
Evaluate Push Notification Impact on Rideshare Supply Shortages Experiment Design: Push Notifications for Airport Surge Shortage Resolution Context Wh...
Enforce ordered execution across threads
Enforce ordered execution across threads Implement a class with three methods alpha(), beta(), and gamma() that may be called by three different threa...
Solve Several Algorithm Problems
This collection evaluates proficiency in string processing (longest palindromic substrings), graph connectivity and union‑find style concepts for 2D p...
Design Global Nearby Restaurant Search
This question evaluates a candidate's ability to design a large-scale, low-latency distributed system that supports geospatial indexing, API and data ...
Assess Cultural Fit and Leadership Potential in Candidates
Behavioral Phone Screen: Cultural Fit and Leadership Potential You are in a Data Scientist phone screen focused on cultural fit, leadership potential,...
Evaluate Email Subject Line Performance Using Hypotheses
Email Subject Line A/B Test: Hypotheses, CLT, and Sample Size An email marketing team wants to evaluate whether a new subject line improves click-thro...