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Master your tech interviews with 10,000+ real questions from top companies.

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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
160
Companies
569
Updated
10.14.2026
160 Questions 569 Companies10.14.2026
PLTCHK testimonial
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_ testimonial
_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"

Chris testimonial
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 testimonial
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."

Jake testimonial
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 testimonial
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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
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."

Andy testimonial
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 testimonial
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."

Shruti testimonial
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 testimonial
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."

Bianca testimonial
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 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
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 testimonial
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_ testimonial
_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"

Chris testimonial
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 testimonial
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."

Jake testimonial
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 testimonial
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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
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."

Andy testimonial
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 testimonial
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."

Shruti testimonial
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 testimonial
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."

Bianca testimonial
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 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
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 10 results
Da Vinci Trading logo
Da Vinci Trading
Hard
Software Engineer

Design an in-memory order matching engine

You are asked to design an in-memory order book / order matching system for a single electronic trading venue. The implementation language is C++, and...

System DesignTrading SystemsConcurrency
146
0
1039 people solved
Dec 8, 2025
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Design a One-to-One Chat System

Design durable one-to-one messaging with ordered history, offline recovery, multi-device delivery, and optional receipt state. Important concerns incl...

System Design
7
0
62 people solved
May 9, 2026
Harvey logo
Harvey
Medium
Software Engineer

Design a Cloud File Storage Service

Design a cloud file storage and collaboration service similar to Google Drive or Dropbox. At a high level, the service must let users store files in a...

System DesignFile & Media StorageStorage & Sharding
24
1
354 people solved
Apr 12, 2026
Candid Health logo
Candid Health
Easy
Software Engineer

Implement a Callback Signaling Registry with Register, Unregister and Signal

Implement a small in-process signaling system, essentially a minimal publish/subscribe registry: callbacks subscribe to a signal id, and signaling tha...

Software Engineering FundamentalsLow-Level Design (OOP)Data Structure Design
1
0
16 people solved
Oct 8, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design ChatGPT: Streaming Replies over SSE and Rendering Long Conversations

Design ChatGPT: a web chat application in which a user sends a message and a large language model's reply appears token by token as it is generated, w...

System DesignReal-Time SystemsLLM Applications
0
0
15 people solved
Jul 29, 2026
Robinhood logo
Robinhood
Medium
Software Engineer

Design a live and historical stock quote API fed by a redundant exchange trade feed

Design the market data API for a retail stock-trading app. Clients call two endpoints: - GET /quotes/{symbol}/live returns the real-time quote for one...

System DesignTrading SystemsCaching
1
0
14 people solved
Oct 2, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Design the GPU Job Scheduler for a Text-to-Video Generation Service

This system design question evaluates a candidate's ability to design a resource-scheduling layer for scarce, expensive compute under sustained overlo...

System DesignGPU InfrastructureJob Scheduling & Workflows
71
1
1283 people solved
Jun 26, 2026
Vanta logo
Vanta
Medium
Software Engineer

Design a DAU/MAU metrics system

Question Design a system that computes and serves product engagement metrics — DAU (Daily Active Users) and MAU (Monthly Active Users) — for a large c...

System DesignBatch & Stream ProcessingData Ingestion & CDC
85
0
694 people solved
Feb 23, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Review an inference API design for scale

System Design Review: A Machine-Learning Inference API at Scale Background You are reviewing a teammate's design document for a production machine-lea...

ML System DesignLLM Inference & ServingFault Tolerance & Failover
33
0
510 people solved
Sep 6, 2025
OpenAI logo
OpenAI
Medium
Software Engineer

Design a Slack-Like Messaging System

Design a Slack-like team messaging system focused on sending and receiving messages in real time. Your design should support workspaces with channels ...

System DesignReal-Time SystemsMessaging & Event-Driven
66
0
1015 people solved
Apr 26, 2026
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