Interview Questions
Practice the exact questions companies are asking right now.
Questions
9.8k
Companies
511
Updated
08.16.2026
9.8k Questions 511 Companies08.16.2026
PLTCHK
"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"
_The_TaNk_
"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"
ChrisSenior SWE, LinkedIn
"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."
sleepy33
"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."
JakeSenior ML Engineer, Lyft
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
nuggetlord
"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."
CarlosFull Stack, Shopify
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
boba.tea.vibes
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
AndySWE-II, Google
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
couchpotato99
"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."
ShrutiData Engineer, Salesforce
"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."
midnightramen
"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."
BiancaFrontend Eng, Figma
"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."
tambrahm007
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
toa
"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."
Showing 20 results
Role
Hard
Software EngineerDesign an Online Game Leaderboard
Question Design the backend system for an online game's leaderboard. The system should support: 1. Recording and updating player scores from game sess...
System Design
18
0
152 people solved
Apr 27, 2026
Medium
Data Scientist LockedMeasure a Discovery Boost in a Two-Sided Marketplace
Design a measurement plan for a discovery change in a two-sided marketplace. The interview question evaluates metric selection, experiment design, int...
Analytics & Experimentation
1
0
19 people solved
May 23, 2026
Medium
Data Scientist LockedDebug a Python Aggregation Loop with Dictionaries and Lists
Review a Python aggregation routine that uses dictionaries, lists, and loops, then explain how you would make it correct and robust. This interview ex...
Software Engineering Fundamentals
5
0
40 people solved
May 23, 2026
Medium
Data ScientistMeasure Shopify App Store Success
You are a Data Scientist working on the Shopify App Store, a marketplace that connects Shopify merchants with third-party app developers. Merchants us...
Analytics & Experimentation
14
0
115 people solved
Apr 3, 2026
Medium
Data ScientistDiagnose Weekly Session Conversion Anomalies
You are a Data Scientist supporting an e-commerce platform. You receive a weekly time-series dashboard covering the past three years. The dashboard in...
Analytics & Experimentation
14
0
119 people solved
Apr 3, 2026
Easy
Data ScientistInternAnswer Amazon Leadership Principle Scenarios
In an Amazon Data Scientist intern virtual interview, answer behavioral questions using the STAR method and tie each story to Amazon Leadership Princi...
Behavioral & Leadership
30
0
210 people solved
Apr 3, 2026
Medium
Software EngineerSenior+Model Direct-Sold DSP Orders
Design a data model for tracking a direct-sold demand order in a demand-side advertising platform. Context: - The platform manages advertiser demand a...
Software Engineering Fundamentals
20
0
156 people solved
Apr 3, 2026
Easy
Data ScientistInternPick a Number 1-100 Where the Higher Pick Pays a 10-Point Penalty: Optimal Strategy
Two players simultaneously each pick an integer from 1 to 100 (inclusive). The winner is decided as follows: take the larger of the two picks, subtrac...
Machine Learning
8
0
65 people solved
Jul 22, 2025
Medium
Data ScientistEstimate Revenues and Costs for New Amusement Park Launch
Estimate Revenues and Costs for New Amusement Park Launch Amusement Park Case: Revenue, Costs, Profit, and Go/No-Go Context You are advising an amusem...
Analytics & Experimentation
37
0
422 people solved
Aug 4, 2025
Medium
Data Engineer LockedWrite queries for follows and bookings
This question evaluates the ability to manipulate temporal event logs, enforce bidirectional relational integrity, and implement efficient graph and i...
Coding & Algorithms
27
1
183 people solved
Mar 1, 2026
Medium
Data EngineerDeep-dive XGBoost handling and overfitting
Technical / ML Deep Dive You used gradient-boosted decision trees (e.g., XGBoost/LightGBM) for a credit risk or response prediction problem. Answer th...
Machine Learning
21
0
172 people solved
Mar 1, 2026
Medium
Software EngineerExplain scope and impact under pressure
Behavioral prompt (pressure-style) An interviewer repeatedly interrupts and challenges you to be precise. 1. Tell me about a project you led. 2. For e...
Behavioral & Leadership
29
0
226 people solved
Mar 1, 2026
Medium
Data ScientistSealed-Bid Auction for a Box of 200 Coin Flips (and an Informed Opponent)
You are one of two bidders in a sealed-bid auction for a box. The box's payout is determined by flipping 200 fair coins: it pays \$1 for every coin th...
Machine Learning
8
0
80 people solved
Oct 10, 2025
Medium
Machine Learning EngineerDerive MLE and Bayesian posterior for Bernoulli
Bernoulli/Binomial Inference Task You observe n independent Bernoulli trials with unknown success probability p, and you record k successes (so K ~ Bi...
Statistics & Math
61
0
537 people solved
Aug 11, 2025
Medium
Software EngineerSelect words to maximize unique characters
Problem You are given an array of strings words. You may choose any subset of these strings and concatenate the chosen strings in any order. Your goal...
Coding & Algorithms
39
0
523 people solved
Dec 15, 2025
Medium
Software EngineerDesign a Payment Fraud Detection Service
Design a real-time fraud detection service for a payment platform. When a user submits a payment attempt, the platform calls your service before autho...
System Design
10
0
87 people solved
Apr 14, 2026
Easy
Software EngineerWhen should products use AI?
A product-oriented interview asks you to discuss AI adoption in software products. Explain how you would decide whether a feature should use AI or a t...
Machine Learning
15
0
116 people solved
Apr 2, 2026
Hard
Data ScientistNew GradHow to deploy and tune multimodal models?
Question You are interviewing for a new-grad machine learning / data scientist role at ByteDance. Answer the following related machine-learning and LL...
Machine Learning
12
0
83 people solved
Jan 10, 2026
Medium
Software EngineerHandle teamwork, prioritization, and feedback scenarios
Answer the following behavioral questions (use specific examples from your experience): 1. Describe a complex project you worked on. 2. Tell me about ...
Behavioral & Leadership
8
0
64 people solved
Jan 10, 2026
Medium
Product ManagerAmazon Leadership Principles – Behavioral Deep Dive
Amazon Leadership Principles Behavioral Deep Dive Prepare for an Amazon Product Manager Leadership Principles behavioral interview. For each prompt, t...
Behavioral & Leadership
25
0
142 people solved
Jul 4, 2025