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
Hard
Software EngineerDesign a distributed key-value store at scale
Design a distributed key-value store at scale System Design Prompt: Globally Distributed, Read-Optimized Key-Value Store Context and minimal assumptio...
System Design
30
0
301 people solved
Jul 26, 2025
Medium
Software Engineer LockedDesign KV store with sliding-window QPS metrics
This question evaluates designing an in-memory key–value store with sliding-window throughput metrics, testing competencies in data structures, concur...
System Design
22
0
273 people solved
Nov 8, 2025
Medium
Software EngineerSenior+ LockedSolve Tree Diameter and Palindromic Counts
This two-problem prompt evaluates proficiency in tree algorithms and recursion for computing longest paths in binary trees, along with string processi...
Coding & Algorithms
2
0
18 people solved
May 21, 2026
Medium
Software EngineerSenior+ AI LockedSolve Tree Columns And Maze Variants
This question evaluates tree traversal and column-based grouping skills along with grid-based graph search, state modeling, and handling dynamic maze ...
Coding & Algorithms
2
0
23 people solved
May 21, 2026
Medium
Software Engineer LockedDesign a Ride-Hailing Platform
This question evaluates system design and distributed systems competencies, focusing on real-time location tracking, scalable API and storage design, ...
System Design
4
0
65 people solved
Apr 7, 2026
Hard
Software EngineerCount Ordered Sequences That Sum to a Target
Count Ordered Sequences That Sum to a Target Given a positive target n and a set of unique positive order sizes, count the distinct ordered sequences ...
Coding & Algorithms
0
0
4 people solved
Apr 28, 2026
Medium
Software EngineerNew GradDesign a pizza ordering system
Design the core object-oriented model for a pizza ordering system used by a small restaurant. The system should allow customers to: - browse a menu of...
Software Engineering Fundamentals
10
1
170 people solved
Oct 24, 2025
Medium
Software EngineerDescribe mentorship, conflict, and project impact
Behavioral questions discussed in the interview included topics like: - Walk through a project you worked on end-to-end. What was the goal, what trade...
Behavioral & Leadership
19
0
140 people solved
Jan 7, 2026
Hard
Software EngineerDescribe failure impact and resolve cross-functional conflict
You are in a behavioral interview. Answer the following prompts using a structured method (e.g., STAR or CARL). Provide specific details, metrics wher...
Behavioral & Leadership
15
0
254 people solved
Oct 9, 2025
Hard
Software EngineerSenior+Count Substrings with No Repeated Characters
Count Substrings with No Repeated Characters Given a lowercase English string s, return the number of nonempty contiguous substrings whose characters ...
Coding & Algorithms
1
0
23 people solved
Jul 16, 2026
Medium
Data ScientistNew Grad LockedEvaluate a cold-start rating launch
This question evaluates a data scientist's competency in marketplace analytics, causal inference, experimentation design and measurement, specifically...
Analytics & Experimentation
20
0
286 people solved
Apr 6, 2026
Medium
Software EngineerDesign a Layover Activity Recommendation App
You are designing a mobile app for travelers who have free time during an airport layover. The app should recommend useful activities the traveler can...
System Design
20
0
151 people solved
Apr 27, 2026
Medium
Software EngineerSenior+ LockedExplain a Challenging Project, Influence, and Mentorship
Build a coherent behavioral interview narrative spanning a challenging technical project, influence without authority, and mentorship. Clarify your ow...
Behavioral & Leadership
1
0
20 people solved
Jun 15, 2026
Medium
Software EngineerNew Grad LockedCaesar Cipher with Translation-Table Optimization
This question tests practical string manipulation and modular arithmetic by requiring implementation of a classic Caesar cipher with correct case-pres...
Coding & Algorithms
2
0
13 people solved
Jun 15, 2026
Hard
Machine Learning Engineer LockedImplement local maxima, bagging, and k-means
This question evaluates skills in algorithm implementation and machine learning fundamentals—specifically streaming local maxima detection, bootstrap ...
Coding & Algorithms
6
0
82 people solved
Jan 22, 2026
Hard
Software EngineerHow to prepare for a hiring manager round
You have an upcoming hiring manager (HM) / behavioral interview round (plus a separate HR round) for a quantitative/tech role. Question 1. What does a...
Behavioral & Leadership
10
0
140 people solved
Jan 22, 2026
Medium
Software Engineer LockedDesign a transaction class for deposits/withdrawals
This question evaluates understanding of stateful component design, transactional integrity, concurrency control, data modeling for transaction histor...
Software Engineering Fundamentals
12
0
123 people solved
Jan 22, 2026
Medium
Software EngineerSenior+ LockedDesign authorization and audit logging systems
This question evaluates competency in designing secure authorization and audit logging systems, including access-control models (RBAC/ABAC/hybrid), po...
System Design
22
0
200 people solved
Jan 22, 2026
Medium
Software Engineer LockedDesign a restaurant reservation system
This question evaluates system design competencies including API design, data modeling, distributed systems considerations, consistency and transactio...
System Design
15
0
136 people solved
Jan 22, 2026
Medium
Machine Learning Engineer LockedDesign a computer-use agent end-to-end
This question evaluates competency in designing end-to-end multimodal interactive ML systems, including perception from pixels and accessibility trees...
ML System Design
16
0
127 people solved
Jan 22, 2026