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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Last Truck to Leave a One-Dimensional Lane
Last Truck to Leave a One-Dimensional Lane Implement last_exit_time(lane_length, positions, velocities). Distinct trucks start at integer positions st...
Kth Employee Reached in an Ordered Hierarchy
Kth Employee Reached in an Ordered Hierarchy Implement kth_recipients(boss, queries). Employees are numbered 0 through n - 1. boss[0] == -1; for every...
Minimum Delivery Cost Between Cities
Minimum Delivery Cost Between Cities Implement minimum_delivery_costs(delivery_charges, queries). There are n cities indexed from 0 to n - 1, and city...
Design a Ride-Sharing System (Uber-style Core Platform)
Design a Ride-Sharing System (Uber-style Core Platform) Design the core backend of a ride-sharing platform like Uber. Riders open the app, see nearby ...
Design a Real-Time Top-K Ranking System
Design an object-oriented, real-time Top-K ranking system. The system continuously receives score updates for a large set of entities — for example us...
Design a Food-Delivery Backend (Uber Eats-style)
This system design question tests a candidate's ability to architect a large-scale, multi-actor backend involving geospatial matching, real-time data ...
Design a Real-Time Chat System
This system design question tests a candidate's ability to architect a scalable real-time messaging platform, focusing on transport protocol selection...
Design a Food Delivery Cart
This question evaluates competency in designing stateful, user-facing subsystems including data modeling, API design, session persistence, caching, co...
Design a Distributed Logging System
This question evaluates a candidate's ability to architect a large-scale distributed logging system, testing competency in data ingestion pipelines, f...
Bar Raiser: Architecture Depth, Technical Influence & Ownership
Bar Raiser: Architecture Depth, Technical Influence & Ownership This is a senior-level Bar Raiser interview that blends behavioral signal with archite...
Design a Parking Lot
This question evaluates object-oriented modeling, API design, resource allocation, and concurrency control by asking for classes, relationships, key m...
Design Uber Eats Restaurant Recommendations
This question evaluates a candidate's ability in end-to-end machine learning system design for personalized restaurant recommendations in a food-deliv...
Implement CLIP Contrastive Loss
Given a minibatch of paired image and text embeddings, implement the symmetric contrastive loss used in CLIP-style image-text representation learning....
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[...
Shortest Path in a Grid with Blocked Cells
This question tests a candidate's practical grasp of graph traversal algorithms applied to 2D grid problems, specifically BFS for unweighted shortest-...
Design a Parking Garage Object Model
Design an object-oriented model for a multi-level parking garage. The garage should support: - Multiple floors and parking spots. - Different vehicle ...
Design an Uber Eats Cart Service
This question evaluates a candidate's ability to design a distributed shopping-cart service for a food-delivery platform, testing competencies in syst...
Present a Marketplace ML Project Deep Dive
In a Machine Learning Engineer interview for a pricing, marketplace, or growth team, present a recent representative ML project. Your deep dive should...
Design a Stock Trading Platform
This question evaluates a candidate's ability to design a robust, scalable brokerage platform covering distributed systems architecture, transactional...
Design Product Page View Tracking
Design a view-tracking system for a large e-commerce product detail page. When a shopper opens a product page on web or mobile, the system should reco...