Uber Data Scientist Interview Questions
If you’re preparing for Uber Data Scientist interview questions, expect a mix that reflects Uber’s massive, time-sensitive two‑sided marketplace: interviewers evaluate your ability to turn large, temporal datasets into actionable business decisions under operational constraints. Distinctive elements include heavy SQL usage (especially window functions and time‑based aggregations), experimentation and causal reasoning for A/B testing, product‑analytics cases that probe metric design and root‑cause analysis, plus Python and occasional machine‑learning discussions. Interviewers look for clear problem framing, pragmatic tradeoffs, and the ability to communicate results to cross‑functional partners. For interview preparation focus on three things: practice writing concise, correct SQL for real‑world time‑series problems; rehearse product analytics and experiment design scenarios with quantified tradeoffs; and polish behavioral stories that show ownership and collaboration. Simulate live coding on plain editors or CoderPad, time yourself on case problems, and prepare to explain assumptions and next steps rather than chasing perfect answers. This approach helps you demonstrate the speed, judgment, and impact Uber typically expects from its data scientists.

"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"

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

"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."

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

"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."
How to evaluate lowering ETA?
Uber wants to estimate the business value of reducing ETA, where ETA is the predicted time from when a rider requests a trip until the driver arrives ...
Evaluate UberEATS priority delivery and membership
You are a Data Scientist at UberEATS evaluating two monetization features. Assume the marketplace has customers, merchants, and couriers sharing limit...
Model Driver Acceptance Probability
Design a machine learning system to predict the probability that a driver accepts a trip or delivery offer. Your answer should cover: - the prediction...
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 ...
Move zeros to front
Given an integer array nums, move all 0 values to the beginning of the array in place while preserving the relative order of all non-zero elements. Re...
Design ETA prediction for Uber rides
System Design: Real‑Time Pickup and Drop‑off ETA Prediction Context: You’re designing an end‑to‑end system that predicts pickup and drop‑off ETAs at t...
Measure feature impact with switchback, PSM, and CACE
You work at a ridesharing company and want to measure the impact of a new membership feature on rides-per-user (RPU). Across the parts below you will ...
Design an Uber feature and analyze safety
You are interviewing for a Data Scientist summer internship at a ride-sharing marketplace. Part A: Product case Uber wants ideas for a new rider-facin...
How to experiment on ETA reduction
Context You work on a consumer app where users see an ETA (estimated time to arrival/delivery) during a funnel (e.g., browsing → checkout → order plac...
Measure YouTube Ad Effectiveness
Uber is running marketing ads on YouTube and wants to understand whether the campaign creates incremental business value, not just whether users watch...
Build and deploy an uplift targeting model
Uplift Modeling and Policy Design for Free Trial/Bonus Targeting You ran a past randomized test that offered some users a free trial/bonus (treatment)...
Build and assess CTR prediction
CTR Prediction with Delayed Feedback and Extreme Class Imbalance You are building a model to predict the probability that an ad impression results in ...
Design an Uber A/B experiment end-to-end
Experiment Design: Pickup ETA Card Redesign Context: After a rider requests a trip, the app shows a pickup ETA card. The hypothesis is that clearer ET...
How would you evaluate UberEats growth?
You have just joined UberEats as a senior data scientist. The interviewer asks you to reason about marketplace health and causal impact. Answer the fo...
Analyze the Accident-Rate Spike
A monthly line chart shows the accident rate for Uber trips in one city. The accident rate increases sharply from June through November, then drops qu...
Evaluate business value of lower ETA
Uber wants to evaluate a marketplace intervention that reduces ETA, defined as the estimated number of minutes from a rider's request until the driver...
Can one car serve all riders?
Given a list of passenger waiting intervals, determine whether a single car can serve all passengers without any scheduling conflict. Each interval is...
Check anagrams under real-world constraints
Given two strings s and t, determine whether they contain exactly the same multiset of characters (e.g., 'abc' and 'cab' → true; 'aab' and 'ab' → fals...
Move zeros to the front
Given an integer array nums, move all elements equal to 0 to the beginning of the array while preserving the relative order of all non-zero elements. ...
How should Uber evaluate lower ETA?
Uber wants to estimate the business value of reducing pickup ETA, where ETA refers to the rider-facing estimated time for a driver to arrive at the pi...