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
Medium
Software EngineerDesign Rolling-Window Ad Frequency Capping
Design a frequency-capping service for an advertising platform. The ad platform receives ad requests for users and must decide whether a candidate ad,...
System Design
24
0
165 people solved
Apr 17, 2026
Hard
iOS EngineerSenior+Design a BLE Command Handler
Design a Bluetooth Low Energy (BLE) command handler for an iOS application. The app needs to send commands to a wearable device over BLE. Commands mus...
System Design
5
0
44 people solved
Apr 17, 2026
Medium
Software Engineer LockedMulti-Agent Collision Simulator (Unicycle Kinematics)
This question tests practical coding ability in robotics simulation, specifically implementing unicycle kinematics and discrete-time modeling via forw...
Coding & Algorithms
0
0
6 people solved
Jun 21, 2026
Medium
Data Analyst LockedBuild a Gap-Free Monthly Booking Summary
Build a PostgreSQL monthly report that fills missing calendar periods for each product and booking type. Practice distinct-customer counts, cumulative...
Data Manipulation (SQL/Python)
2
0
17 people solved
May 28, 2026
Easy
Data Scientist LockedDesign experiment for ads in chat with budgets
This question evaluates a data scientist's skills in experimental design, causal inference, metrics selection, and handling allocation constraints for...
Analytics & Experimentation
9
0
63 people solved
Dec 11, 2025
Medium
Software Engineer LockedDesign a Scalable News Feed
This question evaluates a candidate's competency in large-scale system design, specifically architecture, data modeling, API design, feed delivery str...
System Design
68
0
515 people solved
Mar 12, 2026
Medium
Product ManagerAmazon PM Behavioral & Leadership Deep-Dive
Amazon Product Manager Behavioral and Leadership Deep-Dive The Amazon Product Manager onsite loop is a behavioral deep-dive. Across several interviewe...
Behavioral & Leadership
37
0
233 people solved
Jul 4, 2025
Medium
Machine Learning EngineerSenior+ LockedImplement Gradient Descent Regression
This question evaluates understanding of linear regression and gradient-based optimization, including loss formulation, gradient derivation, parameter...
Machine Learning
3
0
62 people solved
Feb 7, 2026
Medium
Software EngineerImplement toy-language types and generic substitution
Problem: Toy Language Type System (Printing + Generic Resolution) You are implementing a small type system for a custom “Toy Language”. Types can be: ...
Coding & Algorithms
74
1
1149 people solved
Nov 13, 2025
Medium
Software EngineerDesign a 911 emergency calling service
System Design Prompt Design a 911 emergency calling service (or emergency call routing platform) that allows users to place emergency calls from mobil...
System Design
14
0
223 people solved
Oct 18, 2025
Medium
Software EngineerExplain How You Use AI in Engineering Work
Explain How You Use AI in Engineering Work Prompt How do you use AI-assisted tools in your day-to-day engineering work? Give one concrete example, exp...
Behavioral & Leadership
2
0
25 people solved
May 6, 2026
Medium
Software Engineer LockedDesign a jigsaw puzzle (OOD)
This question evaluates object-oriented design skills, including class and relationship modeling, state and behavior encapsulation, validation logic, ...
Software Engineering Fundamentals
35
0
246 people solved
Jan 22, 2026
Medium
Software EngineerChoose best/worst actions in workplace ethics scenarios
You are taking a situational judgment test (SJT). For each scenario below, the test presents four possible actions. You must select: - Most likely / b...
Behavioral & Leadership
16
0
139 people solved
Jan 22, 2026
Medium
Software Engineer LockedDesign a banking system with payments and merging
This question evaluates competency in large-scale system design for financial backends, covering distributed transactions, consistency and idempotency...
System Design
103
0
723 people solved
Jan 22, 2026
Easy
Software Engineer LockedDesign a game leaderboard service
This question evaluates a candidate's ability to design scalable, low-latency backend systems and distributed data architectures, covering competencie...
System Design
14
0
174 people solved
Jan 22, 2026
Medium
Software Engineer LockedDesign centralized log ingestion and query system
This question evaluates a candidate's ability to design scalable, reliable log ingestion and query systems, covering distributed systems, high-through...
System Design
63
0
485 people solved
Jan 22, 2026
Easy
Data ScientistDescribe your best team and your role
Question This is a two-part behavioral question. Answer both parts with concrete, specific examples (use STAR where relevant), and connect what you va...
Behavioral & Leadership
14
0
130 people solved
Feb 22, 2026
Hard
Software EngineerDesign a global restaurant menu update system
Design a menu update system for a global chain of restaurants. Context: - The chain operates in many countries. - Each restaurant may have multiple ki...
System Design
14
0
157 people solved
Nov 12, 2025
Medium
Software EngineerDescribe a major challenge you faced
In a behavioral interview for a software engineering or technical role, you are asked: > Describe the most significant challenge you have faced in an ...
Behavioral & Leadership
6
0
68 people solved
Dec 8, 2025
Medium
Software EngineerDesign a scalable game app store
You are asked to design a backend system for a game app store. The product is similar in spirit to an app marketplace but focused on games. Requiremen...
System Design
29
0
209 people solved
Dec 8, 2025