PracHub
QuestionsExperienceLearningGuidesInterview PrepGreen Card
PracHub

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

Product

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

Browse

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

Support

  • support@prachub.com
  • (916) 541-4762

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
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Dark Alpha Capital logo
Dark Alpha Capital
Medium
Software Engineer

Minimize Total Assignment Distance

You are given the coordinates of n analysts and m field devices on a 2D grid, where 1 <= n <= 10 and n <= m <= 15. Each analyst must be assigned exact...

Coding & Algorithms
2
0
39 people solved
Feb 24, 2026
Schneider Electric logo
Schneider Electric
Medium
Software EngineerIntern

Compare JavaScript == and === operators

In JavaScript, what is the difference between the == and === operators? Explain: 1. How each operator compares two values. 2. What type coercion is an...

Software Engineering Fundamentals
3
0
45 people solved
Dec 8, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Compute Differences Between Catalog Trees

You are given two rooted catalog trees. Each node has a unique string key among its siblings and an associated value. Compare the two trees and return...

Coding & AlgorithmsTrees
18
0
147 people solved
Sep 6, 2025
Amazon logo
Amazon
Hard
Data Scientist

Estimate Treatment Effects Using PSM, DiD, and DML Methods

Estimate Treatment Effects Using PSM, DiD, and DML Methods Causal Impact of Marketing Campaigns: PSM, DiD, Synthetic Control, and DML Scenario You hav...

Statistics & MathCausal Inference
25
0
147 people solved
Aug 4, 2025
Instacart logo
Instacart
Medium
Software Engineer

Validate password strength and repair

Given a password policy—length between 8 and 20 characters; must include at least one lowercase letter, one uppercase letter, and one digit; and must ...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
14
0
145 people solved
Aug 1, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Can You Place N Objects?

This question evaluates array traversal, adjacency-constraint reasoning, and greedy placement intuition, emphasizing handling of boundary conditions a...

Coding & AlgorithmsGreedyArrays & Strings
13
0
111 people solved
Mar 22, 2026
Meta logo
Meta
Medium
Software Engineer

Design a ride-sharing system like Uber

Design a ride-sharing system. Requirements: - Riders request trips with pickup/dropoff. - Drivers send frequent location updates. - Match riders to ne...

System Design
6
0
60 people solved
Feb 25, 2026
Airbnb logo
Airbnb
Medium
Software Engineer Locked

Design a Distributed Key-Value Store

This question evaluates expertise in distributed systems and large-scale storage design, covering API design, partitioning, replication, request routi...

System DesignKey-Value StoresConsistency & Availability
13
0
242 people solved
Jan 9, 2026
Amazon logo
Amazon
Hard
Software Engineer

Explain attention and Transformers

Explain attention and Transformers Scaled Dot-Product Self-Attention, Transformer Architecture, and BERT vs GPT You are interviewing for a software en...

Machine LearningTransformers & Attention
11
0
121 people solved
Jul 15, 2025
Instacart logo
Instacart
Medium
Software Engineer

Parse a password from a matrix

Given an m x n matrix of characters, a starting coordinate (row, col), and a string of moves consisting of 'U', 'D', 'L', 'R', parse a password by vis...

Coding & AlgorithmsGrids & Matrices
10
0
108 people solved
Aug 1, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer

Introduce yourself and discuss challenges

Behavioral Interview Prompt: 5‑Minute Self‑Introduction + Challenge (STAR) Context You are interviewing for a Software Engineer role and have an HR sc...

Behavioral & LeadershipMotivation & Fit
13
0
132 people solved
Sep 6, 2025
xAI logo
xAI
Medium
Software Engineer

Explain ACID and transactions

ACID Transactions: Definitions, Enforcement, Isolation Levels, and Example Context You are designing a service backed by a relational database that su...

System DesignTransactions & IsolationDatabase Internals
14
0
194 people solved
Aug 12, 2025
J.P. Morgan logo
J.P. Morgan
Medium
Data ScientistNew Grad Locked

Explain Overfitting and Transformer Basics

This question evaluates proficiency in core machine learning competencies such as overfitting and generalization, selection and regularization of loss...

Machine Learning
7
0
53 people solved
Apr 7, 2026
Google logo
Google
Medium
Software Engineer Locked

Find top-k distinct elements

This question evaluates understanding of algorithms and data structures for selecting distinct top-k values and enforcing ordering constraints. It is ...

Coding & AlgorithmsHeaps & Priority Queues
29
1
210 people solved
Mar 1, 2026
Microsoft logo
Microsoft
Medium
Machine Learning Engineer Locked

Design quality checks for spreadsheet LLM data

This question evaluates a candidate's competency in designing data-quality validation pipelines and in assessing the need for fine-tuning of pretraine...

ML System Design
6
0
86 people solved
Mar 10, 2026
Affirm logo
Affirm
Easy
Software Engineer

Design a High-Card Game with a Persistent Tie Pot

Design a High-Card Game with a Persistent Tie Pot Model and implement a card game. A shuffled deck is split evenly among two players. In each round, e...

Software Engineering Fundamentals
9
0
91 people solved
Oct 9, 2024
Capital One logo
Capital One
Medium
Product Manager

Design a New Credit Card

You are interviewing for a Product Manager product case. Work through this prompt in a structured way: You are a Product Manager for Capital One's cre...

Product Design & StrategyProduct SenseGrowth & Monetization
24
0
183 people solved
Jul 20, 2023
Meta logo
Meta
Medium
Software Engineer

Solve various LeetCode data-structure questions

Question LeetCode 129. Sum Root to Leaf Numbers LeetCode 2089. Find Target Indices After Sorting Array LeetCode 270. Closest Binary Search Tree Value ...

Coding & Algorithms
19
0
73 people solved
Jul 29, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Solve tree distance and design file system

Solve tree distance and design file system Given a binary tree, find the maximum distance between two 'alive' nodes, where 'alive' nodes are initially...

Coding & Algorithms
8
0
99 people solved
Aug 4, 2025
Imc logo
Imc
Medium
Data Scientist Locked

Run EDA and train models while preventing overfitting

This question evaluates proficiency in exploratory data analysis, feature preprocessing, baseline linear regression and small neural network training,...

Machine Learning
5
0
67 people solved
Jan 14, 2026
Previous1...381382383...606Next
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
  • Stripe

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