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
Oracle logo
Oracle
Medium
Software Engineer Locked

Solve the Hardest Project Challenge

Prepare a hardest-project narrative that makes uncertainty, evidence, course correction, and residual trade-offs concrete.

Behavioral & Leadership
2
0
23 people solved
Aug 18, 2026
Amazon logo
Amazon
Easy
Data ScientistIntern

Answer Amazon Leadership Principle Scenarios

In an Amazon Data Scientist intern virtual interview, answer behavioral questions using the STAR method and tie each story to Amazon Leadership Princi...

Behavioral & LeadershipLeadership & InfluenceAmbiguity & Decision Making
39
0
273 people solved
Apr 3, 2026
Snapchat logo
Snapchat
Medium
Data Scientist

Compute User Retention and Analyze Event Data

user_events +---------+---------------------+------------+-------+ | user_id | event_time | event_type | page | +---------+-----------------...

Data Manipulation (SQL/Python)
91
0
348 people solved
Aug 4, 2025
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Software Engineer

Count subarrays with odd zero count

Count subarrays with odd zero count Given an integer array nums, return how many contiguous subarrays contain an odd number of zeros. Provide an O(n) ...

Coding & AlgorithmsArrays & Strings
12
0
226 people solved
Aug 8, 2025
Amazon logo
Amazon
Medium
Data Scientist

Diagnose MySQL joins and GROUP BY/HAVING errors

You are using MySQL 8.0 with ONLY_FULL_GROUP_BY enabled. Answer all parts precisely. Provide the exact SQL you would run and the final result shapes/v...

Data Manipulation (SQL/Python)
1
0
29 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Highest-total path through a binary tree encoded in level order

A binary tree stores an integer at every node, and values may be negative. A path is a sequence of nodes in which each pair of consecutive nodes is jo...

Coding & AlgorithmsTreesDynamic Programming
1
0
13 people solved
Jun 21, 2026
Shopify logo
Shopify
Easy
Software Engineer

Simulate rover movement on a grid

You are building a rover navigation simulator. The exercise is incremental: you implement a single rover on a 2D grid, then extend the design to many ...

Coding & AlgorithmsSimulation & State MachinesLow-Level Design (OOP)
81
1
700 people solved
Jan 27, 2026
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Design a Short-Video Recommendation System

This question evaluates competency in designing large-scale short-video recommendation systems, including machine learning model selection, candidate ...

ML System DesignRecommendation SystemsRanking Models
12
0
132 people solved
Feb 28, 2026
Meta logo
Meta
Medium
Product Manager

Pick a North Star and Guardrails for Instagram's Close Friends Story Sharing

Instagram lets someone share a story with a hand-picked Close Friends list instead of with all of their followers. You are a product manager at Meta. ...

Analytics & ExperimentationMetrics & KPIsLaunch Evaluation
1
0
9 people solved
Jul 23, 2026
TikTok logo
TikTok
Medium
Product Manager

Evidence-Grounded RAG Assistant for TikTok Misinformation Reviews

You are a product manager at TikTok. Design a system built on retrieval-augmented generation (RAG) that helps the content moderation team spot misinfo...

Product Design & StrategyAI Product ManagementTrust & Safety
1
0
12 people solved
Apr 17, 2026
Google logo
Google
Hard
Software Engineer

Use the Fewest Fixed-Length Bit Flips to Make Every Bit One

Problem A move flips every bit in a contiguous length-k window of binary nums. Return the minimum moves needed to make all bits1, or -1 if impossible....

Coding & AlgorithmsGreedyBit Manipulation
0
0
10 people solved
Netflix logo
Netflix
Hard
Data Engineer Locked

Implement a Weighted Eviction Cache

This question evaluates proficiency with data structures and algorithmic design for resource-constrained caching, specifically weight-aware eviction p...

Coding & Algorithms
9
0
91 people solved
Nov 27, 2025
Snowflake logo
Snowflake
Hard
Software Engineer

Compute Inherited Role Privileges

You are given n roles. The array initialPrivileges has length n, where initialPrivileges[i] is the list of privileges directly assigned to role i. You...

Coding & Algorithms
15
0
115 people solved
Apr 5, 2026
Meta logo
Meta
Medium
Data Scientist

Write SQL to compare social-only vs game-only engagement

You are given two tables capturing Oculus app usage. Define an 'active day' as a UTC date on which a user generates at least one event. Consider only ...

Data Manipulation (SQL/Python)SQLSegmentation & Cohort Analysis
45
1
382 people solved
Oct 13, 2025
OpenAI logo
OpenAI
Medium
Product Manager

Forecasting the Generative AI Skills Product Teams Will Need Most in the Coming Year

Which generative AI skills do you expect to become critical over the next year, and why? `hint Tie each skill to a shift For every skill you name, poi...

Machine LearningAI Product Management
0
0
9 people solved
Apr 23, 2026
Two Sigma logo
Two Sigma
Medium
Data Scientist

Analyze NYC taxi trips efficiently over last 7 days

Use today = 2025-09-01. Consider NYC taxi trip data over the last 7 days inclusive (2025-08-26 to 2025-09-01, America/New_York). You receive two datas...

Data Manipulation (SQL/Python)
4
0
73 people solved
Oct 13, 2025
Wells Fargo logo
Wells Fargo
Medium
Software EngineerSenior+ Locked

Highest Salary Using Java Streams

This question tests a software engineer's practical proficiency with the Java Stream API, specifically the ability to perform aggregate operations on ...

Coding & Algorithms
2
0
40 people solved
Jun 24, 2026
Coinbase logo
Coinbase
Medium
Product Manager

Favorite-product prompt: defend the meal ordering app you rely on and improve it

Which app for ordering food do you like best? Make the case for it: who it serves, what it does better than the alternatives, and where it still falls...

Product Design & StrategyProduct SenseMarket & Competitive Analysis
1
0
10 people solved
Feb 27, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Design a Reliable Payment Processing System

Design a Reliable Payment Processing System Design a payment-processing service for merchants. A client creates a payment, the service submits it to a...

System Design
8
0
79 people solved
May 2, 2026
Google logo
Google
Medium
Software Engineer

Find horizontal cut balancing square areas

Given a 2D table with top-left origin (0, 0), you are provided a finite set of n non-overlapping, axis-aligned square cakes. Each square i has real-va...

Coding & Algorithms
13
1
151 people solved
Sep 6, 2025
Previous1...355356357...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