Uber Interview Questions
Practice 290 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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Simulate a Rank-Based Tournament
You are given an array ranks, where ranks[i] is the rank of player i in the initial bracket order. A smaller rank value means a stronger player. The t...
Find minimum reversals to orient edges away from root
You are given a connected graph with n nodes labeled 0..n-1 and n-1 directed edges. If you ignore edge directions, the edges form a tree. Each directe...
Solve stock profit and vertical tree traversal
You have a 60-minute coding interview with two algorithm questions: 1) Max profit from one stock trade - Input: an integer array prices, where prices[...
Find possible robot positions
You are given a 2D grid where '.' represents an open cell and '#' represents a wall. A hidden robot is standing on one open cell. The robot's sensor r...
Check if each prefix forms 1..k permutation
You are given an integer array arr of length n that is a permutation of the numbers 1..n (each number appears exactly once), but in arbitrary order. F...
Design a meeting scheduler and shopping cart
You are asked to do two system-design prompts. Prompt A: Meeting Scheduler Design a meeting scheduling system (similar to a calendar + scheduling assi...
Design a meeting room reservation API
Meeting room reservation (OOD) You are designing a small in-memory meeting reservation system. Requirements - The system starts with N meeting rooms (...
Implement Streaming Clustering for Numbers
You receive a continuous stream of numeric values. Choose an appropriate clustering algorithm and implement it so that each incoming number can be ass...
Design Pricing Model Experiment
You work as a data scientist for a ride-hailing marketplace. The company wants to launch a new pricing model that may change the price shown to riders...
Design a pickup-area driver queue
Design an internal service for a ride-hailing company that maintains a driver queue for each pickup area, such as an airport pickup zone or staging lo...
Build cold-start restaurant ratings
Uber Eats wants a cold-start rating system for newly onboarded restaurants before they accumulate enough real reviews. You are asked to design the mod...
Find the First Unique Log
You are given a list of log entries in the order they were produced. Each log entry can be treated as a string. Return the first log entry that appear...
Compute CDF from a PDF Function
You are given a callable function pdf(t) that returns the probability density of a normal distribution at value t. Implement a function cdf(x) that re...
Answer Common Behavioral Questions
Prepare strong responses for these behavioral prompts: - Describe a difficult project you worked on. - Describe a conflict with a coworker and how you...
How do you manage performance and disagreements?
Manager behavioral prompts Answer the following as a people manager (or manager-level tech lead). Use real examples where possible. 1. Scope and owner...
Design a Maps Address Search Bar
Design the search experience for a map application's address bar, similar to the search box in Google Maps. The system should handle multiple user int...
Determine Threshold-Constrained Connectivity
You are given an undirected weighted graph with n nodes labeled from 0 to n - 1 and a list of edges, where each edge is represented as (u, v, w) meani...
Design Global Nearby Restaurant Search
Design a simplified global food-delivery platform similar to a restaurant marketplace. Requirements: - Merchants can register and manage restaurants. ...
Compute time for virus to infect grid
You are given an m x n grid representing the state of individuals in a lab. - 0 = empty cell (no one) - 1 = healthy individual - 2 = infected individu...
Design Stock Price Alerts
Design a stock price alert system that allows users to create alerts for securities and receive notifications when the market price crosses a specifie...