PracHub
QuestionsExperienceLearningGuidesInterview Prep
Visa Tools

Visa Tools

Visa Sponsors

Find employers with sponsorship filings

H-1B Odds Calculator

Explore your lottery selection odds

Visa Bulletin

Monthly green-card priority dates

PracHub

Master your tech interviews with 18,000+ real questions from top companies.

Product

  • Questions
  • Learning Tracks
  • Interview Guides
  • Resources
  • Green Card Tracker
  • Premium
  • Practice with AI agents
  • For Universities
  • Careers

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • Blind 75
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 PracHub. All rights reserved.

Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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 20 results
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, Zoho, TikTok, Apple, Rokt, Infosys, TCS, ByteDance, Snowflake, Oracle, Accenture

Hard
Software Engineer

Match an Entire String with Dot and Star

Problem Determine whether the pattern pattern matches all of the string text. Return a boolean result. A pattern element is either a lowercase English...

Coding & AlgorithmsString AlgorithmsDynamic Programming
13
1
100 people solved
OpenAI logo
OpenAI
Hard
Software EngineerNew Grad

Cheapest Daily Shirt Colors With No Color Repeated on Consecutive Days

A store has a sale on blue, green and red shirts for the next n days. On day i, a blue shirt costs blue_costs[i] dollars, a green shirt costs green_co...

Coding & AlgorithmsDynamic Programming
28
0
328 people solved
Oct 6, 2026
OpenAI logo
OpenAI
Hard
Software EngineerNew Grad

Microorganism Eating Simulation: Largest Survivor After Left-to-Right Rounds

Several microorganisms are lined up in a row. Each one belongs to a family, identified by a letter, and has a size, a positive integer. A microorganis...

Coding & AlgorithmsSimulation & State Machines
46
0
329 people solved
Oct 6, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Recruiter Screen: Company Knowledge, Daily AI Use, Job-Change Motivation and AI Safety

A recruiter phone screen for a software engineering role at an AI company consisted of five open-ended questions and no technical exercise. The recrui...

Behavioral & LeadershipMotivation & FitAI-Assisted Development
4
0
63 people solved
Oct 18, 2026
Snowflake logo
Snowflake
Hard
Software Engineer

Check Whether the Last Move Wins a Game of Connect Four

Connect Four is played on a vertical grid. Two players take turns dropping pieces into it, and a player wins by lining up four of their own pieces in ...

Coding & AlgorithmsGrids & Matrices
10
0
73 people solved
Oct 21, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design an Online Devbox Service for On-Demand Cloud Development Environments

Design an online devbox service: a platform that gives engineers development environments ("devboxes") that run in the cloud instead of on their lapto...

System DesignSystem Design FundamentalsContainers & Orchestration
28
0
302 people solved
Oct 12, 2026
Capital One logo
Capital One
Medium
Software Engineer

Count Pairs of Points Within 2 Units on Both Axes

You are given a list of points on a plane with integer coordinates. Two points intersect when their x-coordinates differ by at most 2 and their y-coor...

Coding & AlgorithmsArrays & Strings
19
0
165 people solved
Oct 16, 2026
Stripe logo
Stripe
Medium
Software Engineer

Fix Seekable POST Body Replay After a 307 Redirect in Python requests

You are working in a checkout of the open-source Python HTTP library requests. When a server answers a POST with 307 Temporary Redirect, the client mu...

Software Engineering FundamentalsDebuggingAPI Integration & HTTP Clients
44
0
518 people solved
Sep 24, 2026
Abridge logo
Abridge
Medium
Software EngineerNew Grad

Simulate Wind Moving Leaves on a Grid

A rectangular grid stores the number of leaves in each cell. Apply a sequence of wind directions U, D, L, and R. Leaves that move outside the grid dis...

Coding & AlgorithmsSimulation & State Machines
4
0
48 people solved
Oct 31, 2026
OpenAI logo
OpenAI
Hard
Software EngineerSenior+

Design a Real-Time Multiplayer Typing Race Game

Design an online multiplayer typing game. The interviewer compared it to designing online chess: players are matched into a game, the game's state has...

System DesignMultiplayer Game SystemsReal-Time Systems
6
0
95 people solved
Oct 14, 2026
Google logo
Google
Medium
Software EngineerIntern

Merge Two YAML Configuration Trees with Per-Node Merge Rules

You are given two configuration trees, each parsed from a YAML file: a base tree and an overlay tree. Implement a function that merges them into a sin...

Software Engineering FundamentalsTreesLow-Level Design (OOP)
30
0
295 people solved
Oct 9, 2026
Elevenlabs logo
Elevenlabs
Medium
Software Engineer

Design an AI Voice Chat Assistant for a Sneaker Retailer's Website

Design a voice chat system for a retailer's website. The example given was the online store of a sneaker and sportswear chain such as Foot Locker: a s...

System DesignReal-Time SystemsAI Agents
1
0
22 people solved
Nov 8, 2026
OpenAI logo
OpenAI
Hard
Software EngineerSenior+

Design a power grid monitoring and control system

Design a system for monitoring and controlling a power grid. The report gives only this one-line prompt, so settle the scope with the interviewer firs...

System DesignSystem Design FundamentalsFault Tolerance & Failover
15
0
105 people solved
Oct 12, 2026
Nutanix logo
Nutanix
Medium
Software EngineerSenior+

Design a Windowed Hit Counter with Fixed Buckets and Concurrency

Design a hit counter and discuss three follow-ups: many hits at the same timestamp, reducing storage and operation cost with two fixed-size arrays, an...

Software Engineering FundamentalsData Structure DesignConcurrency
3
0
37 people solved
Nov 2, 2026
LinkedIn logo
LinkedIn
Medium
Machine Learning EngineerSenior+

Feed Ranking System Design to Increase User Time Spent

Design how you would use a feed ranking system to increase the time users spend in the feed. The report gives only this goal, so settle the scope with...

ML System DesignRanking ModelsMetrics & KPIs
7
0
55 people solved
Oct 23, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Key-Value Store Persistence: Length-Prefixed Bytes, Size-Capped Chunks, Thread Safety

Implement an in-memory key-value store whose contents survive a restart. While the program runs, the store serves reads and writes from memory. When s...

Software Engineering FundamentalsKey-Value StoresConcurrency
31
0
220 people solved
Oct 9, 2026
Abridge logo
Abridge
Medium
Software EngineerNew Grad

Return Word Frequencies in Alphabetical Word Order

Given a list of words, count each distinct word and return a list of counts ordered alphabetically by the corresponding distinct words. The output con...

Coding & AlgorithmsArrays & StringsSorting
4
0
38 people solved
Oct 31, 2026
Amazon logo
Amazon
Medium
Software Engineer

Find the Maximum Overlap of Closed Intervals

Given a collection of closed intervals [start,end], return the largest number of intervals containing the same point. Both endpoints count: [1,2] and ...

Coding & AlgorithmsIntervals & SchedulingSorting
6
1
48 people solved
Oct 24, 2026
Google logo
Google
Medium
Software Engineer

Resolving Disagreements with a Coworker, Another Team and a Mentee Who Resists Direction

A behavioral round made of three prompts about conflict and influence at work. For each one, describe a specific situation from your own experience: t...

Behavioral & LeadershipConflict & CollaborationMentoring & Team Growth
15
0
126 people solved
Oct 16, 2026
Google logo
Google
Medium
Software Engineer

Explore the Island at a Given Cell With BFS, Then Count Lakes Enclosed by Land

A satellite image is given as an N × M grid of characters, where 'X' is land and '.' is water. You are also given the coordinate (r, c) of one cell in...

Software Engineering FundamentalsGrids & Matrices
20
1
136 people solved
Oct 14, 2026
Previous1...678...929Next
Popular Categories
SQLBlind 75
Daily Quest

Sign in to earn XP for every problem you solve.

Choose your next challenge

All learning

Blind 75

75 free coding problems to build your foundations, with hints, explanations, and a progress checklist.

Arrays · Graphs · Dynamic programming

Explore Blind 75

ML System Design

Work through the decisions behind machine learning systems, from data to serving.

Data · Models · Evaluation

Explore the course

System Design Interview

Practice reasoning about architecture, scale, and the tradeoffs that shape a system.

Architecture · Scale · Tradeoffs

Explore the course

Explore by company

All companies
  • Meta
  • Google
  • Amazon
  • Apple
  • Microsoft
  • Netflix
  • Capital One
  • TikTok
  • DoorDash
  • Uber
  • Coinbase
  • Airbnb
  • LinkedIn
  • Salesforce
  • Snapchat
  • Spotify
  • PayPal
  • Lyft
  • Pinterest
  • Anthropic
  • OpenAI
  • Databricks
  • Rippling
  • Jane Street

Explore by role

  • Data Scientist
  • Software Engineer
  • Machine Learning Engineer
  • Product Manager
  • Data Engineer
  • Data Analyst
  • Frontend Engineer
  • Backend Engineer
  • Site Reliability Engineer
  • Technical Program Manager

Explore by category

  • Blind 75
  • Coding & Algorithms
  • System Design
  • Machine Learning
  • ML System Design
  • SQL & Python
  • Analytics & Experimentation
  • Behavioral & Leadership
  • Statistics & Math
  • Product / Decision Making
  • Product Design & Strategy
  • SWE Fundamentals

Popular interview guides

  • Meta SWE
  • Meta DS
  • Meta PM
  • Google SWE
  • Google DS
  • Google MLE
  • Amazon SWE
  • Amazon DS
  • Amazon DE
  • Apple SWE
  • Apple MLE
  • Microsoft SWE
  • Microsoft DS
  • TikTok SWE
  • TikTok DS
  • Uber SWE
  • Uber DS
  • DoorDash SWE
  • DoorDash DS
  • Airbnb SWE
  • Airbnb DS
  • LinkedIn SWE
  • LinkedIn DS
  • Netflix SWE
  • Coinbase SWE
  • Capital One DS
  • OpenAI SWE
  • Anthropic SWE

Popular question categories

  • Blind 75
  • Meta Coding
  • Google System Design
  • Amazon Coding
  • Meta Analytics
  • Google ML
  • Amazon System Design
  • Capital One SQL
  • TikTok ML
  • Meta SQL
  • Uber Analytics
  • DoorDash Coding
  • Google Coding
  • Netflix System Design
  • Airbnb Analytics
  • LinkedIn SQL