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
Medium
Software EngineerSenior+Design streaming error-log counting with moving average
Design a core component in a streaming system: Input: - Multiple upstream services continuously emit log events. - Each event includes at least: servi...
System Design
158
0
2526 people solved
Dec 17, 2025
Medium
Site Reliability EngineerSolve Five Core Python Data-Processing Exercises
Solve Five Core Python Data-Processing Exercises Implement and explain: repeat a message n times with blank lines; square a list then reverse it; Fizz...
Software Engineering Fundamentals
2
0
14 people solved
May 8, 2026
Medium
Software EngineerSenior+ LockedSolve Grid Path and Unique Substring
This question evaluates algorithmic problem solving skills in grid traversal and stateful string processing, specifically testing understanding of pat...
Coding & Algorithms
21
0
152 people solved
Jan 29, 2026
Medium
Software EngineerIntern LockedResolve Conflict and Challenge Project Decisions
This question evaluates conflict resolution, ownership, stakeholder management, technical judgment, and the ability to earn trust and influence within...
Behavioral & Leadership
22
0
191 people solved
May 19, 2026
Medium
Machine Learning Engineer LockedExplain batch inference design
This question evaluates a candidate's competence in designing scalable, reliable batch inference pipelines for machine learning, covering model artifa...
Machine Learning
60
0
440 people solved
Feb 27, 2026
Medium
Machine Learning EngineerDesign Place Recommendation System
Design a machine learning system for a maps or local-discovery product that recommends places a user may want to visit. The system should provide pers...
ML System Design
9
0
167 people solved
Mar 17, 2026
Medium
Backend Engineer LockedScale Word-Frequency Processing Beyond One Machine
Design a distributed word-frequency pipeline for inputs too large for one process while preserving exact tokenization and ranking. Cover immutable obj...
System Design
4
0
36 people solved
Jun 13, 2026
Hard
Software EngineerDesign an airline booking system
System Design: Airline Booking System Design an airline booking platform that lets travelers search for flights, book them, select seats, and modify o...
System Design
85
0
732 people solved
Aug 7, 2025
Easy
Software EngineerMerge Overlapping Intervals
Merge Overlapping Intervals Implement merge_intervals(intervals) for a list of closed integer intervals. Each interval is [start, end] with start <= e...
Coding & Algorithms
1
0
22 people solved
Jul 22, 2026
Hard
Software EngineerDesign game matchmaking and waiting queue
Design a scalable game matchmaking and waiting-queue system You are designing the matchmaking system for a large real-time multiplayer game (think of ...
System Design
52
0
361 people solved
Jul 15, 2025
Medium
Software EngineerSolve four algorithmic coding tasks
You are given four independent coding tasks. They may be solved in any order, and partial test-case credit is awarded for each task. The tasks are rou...
Coding & Algorithms
68
0
460 people solved
Sep 6, 2025
Hard
Data ScientistEvaluate Biker Feature Success
DoorDash is considering launching Biker Mode, a feature for Dashers who deliver by bicycle. Biker Mode may help bicycle Dashers identify suitable shor...
Analytics & Experimentation
69
0
644 people solved
Apr 25, 2026
Hard
Software Engineer LockedFind a Path Between Nodes in a Fibonacci Tree
Practice a Databricks coding interview problem focused on find a path between nodes in a fibonacci tree. The prompt emphasizes edge cases, clean imple...
Coding & Algorithms
1
0
17 people solved
May 30, 2026
Medium
Software EngineerDesign a deck of cards with shuffle/draw
Object-Oriented Design + Randomness: A Deck of Cards Design an in-memory model of a standard 52-card playing deck. Your design will be exercised by cl...
Software Engineering Fundamentals
48
0
358 people solved
Mar 1, 2026
Medium
Software EngineerDesign a personalized news aggregator
Design a Google News-style personalized news aggregator. The system continuously collects articles from many third-party publishers by polling their A...
System Design
36
1
573 people solved
Apr 19, 2026
Medium
Software Engineer LockedAnswer conceptual true/false and caching questions
This question evaluates understanding of integer representation, caching eviction policies and trade-offs (LFU vs LRU) including communication of anal...
Software Engineering Fundamentals
23
0
269 people solved
Jan 20, 2026
Hard
Software EngineerDesign GPU credit allocator
Design a GPU Credit Allocation System Design a GPU credit allocation system for a multi-tenant compute platform (for example, OpenAI's GPU infrastruct...
System Design
344
0
2609 people solved
Aug 4, 2025
Medium
Software EngineerDesign a thread-safe key-value store
You are working on infrastructure for an AI platform. Inside a single process, many worker threads need to share a simple in-memory key–value store; a...
Software Engineering Fundamentals
69
1
594 people solved
Nov 10, 2025
Hard
Software EngineerSolve two coding assessment tasks
The online assessment contained two coding problems: 1. Maximize store revenue You are given an integer array quantity of length n, where quantity[i...
Coding & Algorithms
13
0
146 people solved
Feb 23, 2026
Medium
Software Engineer LockedSimulate room assignments for scheduled meetings
This question evaluates scheduling and event-simulation skills, including time-ordered processing, resource allocation with tie-breaking, and efficien...
Coding & Algorithms
15
0
143 people solved
Jan 6, 2026