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
GoogleMicrosoftAmazon

Also asked at Amazon, Bloomberg, Meta, Cognizant

Easy
Software Engineer

Keep Customers without a Referee or Referred by Someone Other Than Two

Problem Return customer names when referee_id is not 2, or when no referee is recorded. A NULL referee_id represents no referral and must be retained....

Data Manipulation (SQL/Python)SQL
1
0
12 people solved
Apple logo
Apple
Medium
Product Manager

Recommending for or against an AI-adaptive iPhone home screen in iOS

You are a product manager at Apple. The company is weighing whether iOS should use AI to personalize the iPhone home screen. Would you recommend doing...

Product Design & StrategyAI Product ManagementProduct Strategy
0
0
9 people solved
Sep 26, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Build a Progressive Employee Tracker

Build an employee attendance and payroll tracker with shifts, time rankings, scheduled promotions, and double-pay windows. Preserve role and rate snap...

Coding & AlgorithmsSimulation & State MachinesData Structure Design
24
0
237 people solved
Jul 8, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Recruiter Screen: Current Work, What You Want Next, Level and Work Authorization

This is a recruiter screen for a software engineering role. It may be presented as an informal conversation that needs no preparation, but the recruit...

Behavioral & LeadershipMotivation & Fit
2
0
41 people solved
Jul 17, 2026
Harvey logo
Harvey
Medium
Software Engineer Locked

Defend a Project Decision and Its Trade-offs

Prepare a project decision deep dive with concrete alternatives, personal ownership, correctness evidence, accepted costs, and a migration rationale.

Behavioral & LeadershipAmbiguity & Decision MakingSystem Design Fundamentals
6
0
62 people solved
Sep 1, 2026
Medium
Analytics Engineer

Maintain Entry Numbers with Incremental Loads and Historical Backfills

Maintain Entry Numbers with Incremental Loads and Historical Backfills A table contains entry_uuid, context_uuid, visitor_id, created_at, and platform...

System DesignETL & Data PipelinesData Ingestion & CDC
2
0
24 people solved
Sep 12, 2026
Instacart logo
Instacart
Medium
Software Engineer Locked

Add Hold-Available and Loan Due-Date Notifications to a Library Lending System

A software engineering exercise that adds notifications to an existing library lending system: alerting patrons when a held item becomes available and...

Software Engineering FundamentalsDistributed Transactions & IdempotencyJob Scheduling & Workflows
3
0
49 people solved
Sep 3, 2026
Harvey logo
Harvey
Medium
Software Engineer Locked

Spreadsheet Formula Engine with Cycle Detection

This question evaluates a candidate's ability to design a stateful data structure that models dependency relationships and lazily propagates updates, ...

Coding & Algorithms
13
0
188 people solved
Jun 12, 2026
Swiggy logo
Swiggy
Medium
Product Manager

Root-Causing Slower Instamart Deliveries in a Tier-1 City Since Last Week

You are a product manager at Swiggy working on Instamart, its quick-commerce grocery delivery service. Since last week, Instamart orders in a Tier-1 c...

Analytics & ExperimentationMetric Diagnostics
1
0
10 people solved
Oct 9, 2026
Whatnot logo
WhatnotGoogleBridgewater

Also asked at Bridgewater, Amazon, Meta, Bloomberg

Medium
Software Engineer

Count Digit Strings Produced by Knight Moves on a Phone Pad

Problem The numeric keypad has rows 1 2 3, 4 5 6, 7 8 9, and a final row with0 in its middle column; the other two final-row positions are unusable. P...

Coding & AlgorithmsDynamic ProgrammingGraphs
1
2
30 people solved
Netflix logo
Netflix
Medium
Software Engineer Locked

Count Pairs of Strings with Disjoint Character Sets

Count unordered index pairs of lowercase strings whose character sets do not overlap, treating duplicate strings at different positions separately. Co...

Coding & Algorithms
7
1
111 people solved
Jul 31, 2026
Coinbase logo
Coinbase
Hard
Software Engineer AI

Debug and Extend Cursor Queries

You are in an AI-assisted coding interview. You may consult AI-generated suggestions, but you are expected to validate them, explain your reasoning ou...

Software Engineering FundamentalsDebuggingAI-Assisted Development
32
0
607 people solved
Apr 2, 2026
Plaid logo
Plaid
Easy
Software Engineer

Design a ChatGPT-like conversational assistant

Design a ChatGPT-like conversational assistant product. Assume you need to support: - Multi-turn chat with conversation history - Streaming responses ...

System DesignSystem Design FundamentalsLLM Applications
94
0
702 people solved
Feb 4, 2026
Stripe logo
Stripe
Medium
Software Engineer

Plan bicycle routes on a city map

You are given a city bicycle network as a weighted graph where edges encode distance, bike-lane availability, elevation gain, and traffic risk. Comput...

Coding & AlgorithmsGraphs
75
0
858 people solved
Sep 6, 2025
Arm logo
Arm
Easy
Software Engineer

Explain GPU pipeline and execution hazards

Explain the following GPU architecture topics: 1. How a modern GPU renders a triangle from input vertices to final pixels. 2. How register read-after-...

Software Engineering Fundamentals
15
0
138 people solved
Feb 14, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Implement a Snapshot Set Iterator

This question evaluates data structure design, versioning, and iterator consistency concepts within the Coding & Algorithms domain, focusing on implem...

Coding & Algorithms
15
0
129 people solved
May 24, 2026
Two Sigma logo
Two Sigma
Medium
Data Scientist

Analyze Temperatures and Update Regression

You are given historical daily temperature data for New York City and several nearby towns. Each row contains a date, the NYC temperature, and the tem...

Machine LearningML CodingRegression & Statistical Modeling
36
1
400 people solved
Apr 21, 2026
Commure logo
Commure
Hard
Software Engineer

Filter People by Optional Criteria

Filter People by Optional Criteria Implement filter_people(people, min_age, max_age, occupations, min_salary, max_salary). Each item in people is a di...

Coding & Algorithms
8
0
104 people solved
Apr 30, 2026
Reddit logo
Reddit
Easy
Machine Learning Engineer Locked

Design a Tennis Scoring System

This question evaluates object-oriented design, state management, input validation, and the ability to model domain-specific scoring rules for a two-p...

Software Engineering FundamentalsSimulation & State MachinesLow-Level Design (OOP)
9
2
118 people solved
May 23, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Site Reliability Engineer Locked

Troubleshoot a Host That Rejects SSH Connections

Build a layered plan for diagnosing a Linux host that rejects SSH connections, using network, socket, service, log, and client evidence while stating ...

Software Engineering Fundamentals
20
0
255 people solved
Aug 16, 2026
Previous1...130131132...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