Uber Interview Questions
Practice 263 real interview questions from Uber. Covers Coding & Algorithms, Analytics & Experimentation, Machine Learning, System Design. For roles including Software Engineer, Data Scientist, Machine Learning Engineer, Technical Program Manager.
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
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"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
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"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Design a Real-Time Top-K Ranking System
Design an object-oriented real-time Top-K ranking system. The system receives score updates for many entities, such as users, drivers, restaurants, or...
Design a Food Delivery Cart
Design the cart subsystem for a food delivery platform similar to Uber Eats. The cart should let users: - add, update, and remove items - choose item ...
Design Restaurant Search and Monitoring
Design the search component for a food delivery application. Users should be able to search for restaurants and menu items by text query, for example ...
Design a Parking Lot
In an AI-assisted coding round, design the core object model and APIs for a parking lot system. The system should support: - multiple floors - multipl...
Design a Food Delivery Recommender
Design a recommendation system for a food delivery app similar to Uber Eats. When a user opens the home page, the system should recommend restaurants ...
Evaluate Promotions for Uber Eats Users
Uber Eats wants to send promotions or coupons to users. Design an experiment and analysis plan to evaluate whether the promotion is effective. Address...
Schedule Non-Overlapping Meetings Efficiently
Implement a meeting scheduler that stores meetings as half-open intervals [start, end), where start and end are integer timestamps and start < end. Th...
Design Uber Eats Restaurant Recommendations
Design a restaurant recommendation system for the Uber Eats home page. A user opens the Uber Eats app and should see a ranked feed of restaurants avai...
Implement a Referral Revenue Tracker
Implement an in-memory revenue tracking system for customers in a referral network. Each customer has their own direct revenue. A customer may also ha...
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...
Evaluate a cold-start rating launch
Uber Eats is considering showing an initial rating for newly onboarded restaurants that have little or no historical review data. This is a two-sided ...
Describe a Trade-off Design Change
Tell me about a time when you changed a system design because of an important trade-off. Explain the original design, the competing goals or constrain...
Solve BST and Grid Query Problems
Solve the following coding problems. Problem A: Find the kth largest value in a BST You are given the root of a binary search tree and an integer k. R...
Determine Whether Queries Can Zero Array
You are given an integer array nums of length n and a list of range operations queries, where each query is of the form [l, r, val]. Process the queri...
Design cart management lifecycle service
Scenario You are designing the backend for an on-demand delivery app (restaurants and grocery). Users can create a cart, modify items from multiple de...
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...
Should Uber double member discounts?
Uber is considering increasing the member discount on rides from 5 percent to 10 percent. This can affect rider demand, driver supply, marketplace bal...
Determine Whether Queries Can Zero Array
You are given an integer array nums of length n and a list of range queries queries, where each query is of the form [l, r, val]. For a query [l, r, v...
Design Global Nearby Restaurant Search
Design a simplified global food-delivery platform similar to a restaurant marketplace. Requirements: - Merchants can register and manage restaurants. ...
Implement Store Autocomplete
You are given a list of store names, for example: `text ["McDonald's", "KFC", "Burger king", "Bites", "Biscuit shop"] ` Implement an autoComplete(s) m...