Uber

Ride-hailing and delivery platform with massive real-time data challenges.

4 Rounds ~21 Days Hard

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The Interview Loop

Recruiter Screen (30 min)

Standard fit check, behavioral questions, and resume overview.

Technical Loop (3-4 Rounds)

Deep dive into domain knowledge, coding, and system design.

Interview Question Bank

All Roles Cloud Engineer 15 Data Engineer 15 Data Scientist 15 Machine Learning Engineer 15 Product Manager 15 Software Engineer 15

All Topics Algorithms 7 System Design 4 Culture Fit 2 Concurrency 1 Leadership 1

Software Engineer • Behavioral • medium

Tell me about a time you disagreed with a senior engineer or manager on a technical design. How did you resolve the conflict and what was the outcome?

#Conflict Resolution #Communication #Collaboration

Software Engineer • Behavioral • hard

Describe a production outage you were involved in. What was the root cause, how did you mitigate it, and what steps did you take to ensure it never happened again?

#Incident Management #Post-mortems #Reliability #System Architecture

Software Engineer • Behavioral • medium

Uber moves fast. Tell me about a time you had to deliver a project with a very tight deadline. What technical tradeoffs did you make, and would you make the same choices today?

#Time Management #Technical Debt #Prioritization #Agile

Software Engineer • Coding • medium

Given an array of driver locations represented by [x, y] coordinates and a rider's location, find the k closest drivers to the rider.

#Heaps #QuickSelect #Geometry #Sorting

Software Engineer • Coding • medium

Design and implement an LRU (Least Recently Used) Cache. It should support get and put operations in O(1) time complexity.

#Hash Map #Doubly Linked List #Data Structures

Software Engineer • Coding • medium

You are given a list of overlapping ride requests, where each request has a start time and end time. Write a function to merge all overlapping ride times and return the consolidated active driving periods.

#Arrays #Sorting #Intervals

Software Engineer • Coding • medium

Implement a Rate Limiter. Given a user ID and a timestamp, return true if the request should be allowed, and false if it exceeds the limit of N requests per M seconds.

#Sliding Window #Queues #Concurrency #Hash Map

Software Engineer • Coding • medium

Given a grid representing a city map where 0 is a valid road, 1 is a traffic jam (impassable), and a start and end coordinate, find the shortest path for an Uber driver to reach the destination.

#BFS #Shortest Path #Graph Theory #Matrices

Software Engineer • Coding • hard

Given a list of bus routes where each route is a list of bus stops. Return the minimum number of buses you must take to travel from a source stop to a destination stop.

#BFS #Graphs #Hash Maps

Software Engineer • Coding • hard

Implement an autocomplete system for Uber's destination search. Given a list of historical destination strings and a search prefix, return the top 3 most frequently searched destinations matching the prefix.

#Trie #Heaps #String Manipulation #Design

Software Engineer • System Design • hard

Design the backend architecture for Uber Eats, focusing specifically on the order state machine and how to handle real-time updates to the customer, restaurant, and courier.

#Microservices #WebSockets #State Machines #Event-Driven Architecture #Pub/Sub

Software Engineer • System Design • hard

Design a geospatial index to quickly find the nearest available Uber drivers for a rider requesting a trip in a high-density city like New York.

#QuadTrees #Geohashing #Spatial Databases #Scalability #Redis

Software Engineer • System Design • hard

Design Uber's dynamic pricing (surge pricing) system. How would you handle the data ingestion of millions of location pings and calculate the surge multiplier in real-time?

#Stream Processing #Kafka #Apache Flink #Distributed Caching

Software Engineer • System Design • hard

Design a distributed logging and monitoring system for Uber's microservices that can ingest millions of logs per second and provide real-time alerting.

#Elasticsearch #Kafka #Log Aggregation #Observability #Data Pipelines

Software Engineer • Technical • hard

Explain how you would implement a thread-safe task scheduler in Go or Java that can execute delayed tasks (e.g., sending a receipt 5 minutes after a trip ends).

#Multithreading #Priority Queues #Locks #Mutexes #Goroutines

Difficulty Radar

Based on recent AI-sourced data.

Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

Focuses on core competencies, system constraints, and clear communication.

Unwritten Rules

Think Out Loud

Always explain your thought process before writing code or drawing architecture.