Interview Questions
Practice the exact questions companies are asking right now.
Questions
10.0k
Companies
520
Updated
08.21.2026
10.0k Questions 520 Companies08.21.2026
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
Easy
Data ScientistDesign multimodal deployment under compute limits
You need to answer a set of questions related to multimodal model deployment and post-training optimization in an interview. Provide systematic explan...
Machine Learning
20
0
188 people solved
Feb 17, 2026
Easy
Machine Learning Engineer LockedDesign an ML job scheduler
This question evaluates competency in ML systems design, distributed resource scheduling, and cluster resource management for heterogeneous CPU and GP...
ML System Design
4
0
76 people solved
Jan 6, 2026
Easy
Machine Learning EngineerHow would you support ML stakeholders?
You are an ML infrastructure engineer working closely with a data scientist stakeholder. Discuss how you would handle the following situations in a pr...
Behavioral & Leadership
9
0
92 people solved
Jan 6, 2026
Medium
Software Engineer LockedDesign a distributed web crawler
This question evaluates the ability to design scalable, fault-tolerant distributed systems for web crawling, covering competencies such as URL dedupli...
System Design
84
0
588 people solved
Jan 6, 2026
Hard
Software Engineer LockedDesign an ACL authorization checking service
This question evaluates system design and security architecture skills, focusing on centralized authorization/ACL models, API and data modeling, cachi...
System Design
41
0
291 people solved
Jan 6, 2026
Hard
Machine Learning EngineerRespond to long-term concerns after A/B success
Your model performs well in an A/B test (statistically significant lift on the primary metric). However, your manager believes the model may harm long...
Behavioral & Leadership
15
1
106 people solved
Jan 6, 2026
Easy
Software EngineerHow to prepare for a PM partnership round
You’re told an onsite loop has 4 rounds: 2 coding, 1 system design, and 1 “PM partnership” round. Question 1. How is a “PM partnership” interview diff...
Behavioral & Leadership
8
0
117 people solved
Jan 6, 2026
Medium
Software EngineerSenior+Answer Amazon-style leadership deep dives
Behavioral / Leadership Prompt (Principal level) Prepare to answer deep-dive leadership questions with heavy follow-ups. Scenarios to cover - A failed...
Behavioral & Leadership
18
0
365 people solved
Jan 6, 2026
Hard
Software EngineerHow do you handle workplace conflict scenarios?
Answer the following conflict-focused behavioral questions. Use concrete examples from your experience. 1. Conflict with a peer: Describe a time you h...
Behavioral & Leadership
9
0
88 people solved
Jan 6, 2026
Medium
Software EngineerSenior+Group Strings By Anagram Signature
Given a list of strings, group the strings so that each group contains words that are anagrams of each other. Discuss both a sorting-based signature a...
Coding & Algorithms
1
0
11 people solved
Jul 8, 2026
Medium
Data EngineerSenior+Merge Overlapping Time Intervals
You are given a list of closed time intervals. Each interval is represented as [start, end], where start <= end. Write a function that returns the sma...
Coding & Algorithms
0
0
9 people solved
May 3, 2026
Hard
Data Scientist LockedDesign and Interpret an A/B Test
This question evaluates a data scientist's competency in experimental design and applied statistics, encompassing power and sample-size calculations, ...
Analytics & Experimentation
24
0
195 people solved
May 3, 2026
Medium
Android Engineer LockedBuild a Compose Rating Card
This question evaluates proficiency in Android UI development with Kotlin and Jetpack Compose, emphasizing custom composable design (a stateless star-...
Coding & Algorithms
43
2
291 people solved
May 3, 2026
Medium
Software EngineerDesign Emergency Notification System
Design a disaster or emergency notification system for an organization such as a city government, university, or large company. The system should allo...
System Design
7
1
63 people solved
Apr 6, 2026
Medium
Software Engineer LockedWalk Through One Past Project
This question evaluates system design, technical ownership, communication, and leadership competencies, including the ability to explain architecture,...
Behavioral & Leadership
5
0
76 people solved
Feb 17, 2026
Medium
Machine Learning EngineerOptimize Tensor Runtime Kernels
You are responsible for optimizing an ML framework runtime on an accelerator. A model has high latency and occasional memory pressure. Explain how you...
Software Engineering Fundamentals
9
0
71 people solved
Nov 27, 2025
Medium
Software EngineerNew GradSolve interval, grid-fill, and heap tasks
You are asked to solve the following algorithmic problems. Problem 1: Concurrent users from online intervals You are given n inclusive time intervals ...
Coding & Algorithms
16
0
202 people solved
Nov 27, 2025
Medium
Machine Learning EngineerInternDesign an HR Document AI Platform
Design an internal AI platform for a bank's HR organization. The platform should ingest HR documents such as policies, benefits guides, onboarding man...
ML System Design
14
0
102 people solved
Mar 12, 2026
Medium
Software EngineerDesign a Fault-Tolerant Meeting Bot Allocation System
Design a Fault-Tolerant Meeting Bot Allocation System Design the infrastructure between a web UI and a bot pool. A user submits a meeting URL and opti...
System Design
0
0
9 people solved
Dec 16, 2025
Medium
Software EngineerDesign a donations service with 3-day rolling totals
Design a service that ingests donations and serves rolling 3-day donation totals. Requirements Core features 1. Ingest donation events: - Each dona...
System Design
25
0
304 people solved
Dec 16, 2025