Tech Interview Questions
Interview Questions
Practice the exact questions companies are asking right now.
Questions
8.5k
Companies
451
Updated
06.24.2026
8.5k Questions 451 Companies06.24.2026
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."
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."
Company
Role
Category
Difficulty
Round
Most PopularLatestKnowledge Hub
Showing 20 results
Role
AllSWEDSMLEPM
OpenAINoneSoftware EngineerDesign a Distributed Rate LimiterDesign a distributed rate limiting system for a large API platform. The platform runs many API gateways and backend services across multiple regions. ...System Design69225213 people solvedMay 11, 2026
AnthropicHardSoftware EngineerDesign a prompt playgroundDesign a prompt playground for developers and prompt engineers. The product lets users write prompts, choose model settings, run prompts against AI mo...System Design17111680 people solvedMay 24, 2026
AnthropicMediumSoftware EngineerDesign a One-on-One Chat ServiceDesign a scalable one-on-one (1:1) chat service. The service lets registered users exchange private text messages in real time across web and mobile c...System Design1121746 people solvedMay 31, 2026
OpenAIMediumMachine Learning EngineerImplement 1NN with NumPyImplement a 1-nearest-neighbor (1NN) classifier from scratch using NumPy, then show that the same decision can be expressed as a neural-network-style ...Machine Learning17031615 people solvedMay 19, 2026
PlaidMediumMachine Learning EngineerDesign RAG Evaluation and DebuggingYou own a production RAG-powered semantic search feature for a fintech product. Users enter natural-language questions; the system retrieves relevant ...ML System Design130107 people solvedJun 19, 2026
GoogleMediumSoftware EngineerDesign a Security Monitoring FrameworkDesign a security monitoring framework for a cloud infrastructure environment. The framework must continuously monitor hosts and workloads for suspici...System Design740555 people solvedMay 26, 2026
GoogleMediumData ScientistMeasure Bird Species SegregationYou are a data scientist analyzing bird observations from a forest. The ecology team wants to know whether different bird species are spatially segreg...Statistics & Math160316 people solvedMay 28, 2026
LyftMediumData ScientistInvestigate Metric Drops and Coupon RetentionYou are a Data Scientist for a ride-sharing marketplace operating in Toronto. This is a multi-part product-analytics case. Work through the three rela...Analytics & Experimentation230418 people solvedMay 28, 2026
DoorDashMediumSoftware EngineerDesign a Food Rating SystemDesign a rating and review system for a food delivery marketplace (e.g. DoorDash). Users of the system should be able to: - Rate a food item on a fixe...System Design120146 people solvedJun 5, 2026
UberHardSoftware EngineerDesign a Real-Time Top-K Ranking SystemDesign an object-oriented, real-time Top-K ranking system. The system continuously receives score updates for a large set of entities — for example us...Software Engineering Fundamentals39525163 people solvedMay 2, 2026
NotionMediumSoftware EngineerDesign a Todo List Object ModelDesign the object-oriented model for a todo list application. The product should allow a user to: - Create multiple todo lists or projects. - Create t...Software Engineering Fundamentals140191 people solvedJun 1, 2026
OpenAIMediumSoftware EngineerDesign an Instagram-like Feed SystemDesign an Instagram-like photo-sharing application, focusing on feed generation and delivery. Your design should support: - Users creating posts conta...System Design370340 people solvedMay 25, 2026
StripeMediumSoftware EngineerDesign a Superhero Dispatch SystemDesign the backend for a superhero rescue marketplace — a dispatch platform that connects civilians in distress with nearby superheroes. Civilians rep...System Design191205 people solvedMay 28, 2026
AnthropicMediumSoftware EngineerDiscuss Ethical Judgment and Unwanted WorkYou are interviewing for a senior infrastructure software engineering role. This is the Culture / behavioral round, and the interviewer is often not a...Behavioral & Leadership9067 people solvedJun 14, 2026
NotionMediumSoftware EngineerDesign a Shared Calendar ServiceDesign a Shared Calendar Service Design a shared calendar service similar to a modern online calendar product (think Google Calendar / a Notion-style ...System Design180164 people solvedJun 1, 2026
OpenAIMediumSoftware EngineerDesign Video Generation OrchestrationDesign a scalable system to orchestrate AI video generation (think Sora-style text-to-video). Users submit text prompts to generate videos. For each s...System Design4070 people solvedJun 12, 2026
OpenAIHardSoftware EngineerDesign a Distributed Crossword SolverDesign a Distributed Crossword Solver Design a distributed system that solves crossword-like word puzzles at scale. You are given a rectangular grid o...System Design460758 people solvedMay 12, 2026
StripeHardSoftware EngineerDebug Validation Error AggregationYou are working in a Python schema-validation library modeled on Colander. A schema is a tree of nodes; each node can run multiple validators. When va...Software Engineering Fundamentals780604 people solvedMay 14, 2026