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
DoorDash logo
DoorDash
Medium
Software Engineer

Compute earliest arrival in time-grid

Question LeetCode 778. Swim in Rising Water – Given an n x n integer grid where grid[i][j] is the earliest time you can enter the cell, starting from ...

Coding & Algorithms
4
0
77 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Evaluate Impact of Targeting Ads to High-Intent Users

Evaluate Impact of Targeting Ads to High-Intent Users A product manager proposes allocating all ad impressions to users predicted to be high intent, a...

Analytics & Experimentation
55
0
243 people solved
Jul 12, 2025
Adobe logo
Adobe
Medium
Software Engineer

Design an Extensible Tree Traversal Library

Question Design a reusable tree-traversal library that supports preorder, inorder, postorder, and level-order traversal. Callers supply their own acti...

Software Engineering Fundamentals
1
0
13 people solved
Apr 19, 2026
Medium
Data Scientist

Solve window-function SQL without joins

You must use only window functions (no JOINs). CTEs are allowed. Given the schemas and tiny samples below, write SQL for each sub-question and explain...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
10
0
78 people solved
Oct 13, 2025
Antra logo
Antra
Medium
Software Engineer Locked

Character Frequency Count in a String

This question tests a candidate's practical ability to traverse strings and use hash-based data structures for frequency counting while preserving ins...

Coding & Algorithms
1
0
13 people solved
Jun 20, 2026
StubHub logo
StubHub
Medium
Software Engineer

Explain a resume project end-to-end

End-to-End Project Walkthrough (Technical Screen — Software Engineer) Prompt Walk me through one project on your resume end-to-end. Please cover 1. Pr...

Behavioral & LeadershipProject Deep Dive
10
0
90 people solved
Sep 6, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Protect SLA and Choose Storage

You own a service that calculates delivery-order payments from order lifecycle events. Discuss two design questions: 1. If an upstream dependency sudd...

System DesignFault Tolerance & FailoverStorage & Sharding
13
0
122 people solved
Jan 9, 2026
Point72 logo
Point72
Medium
Quantitative Researcher

Maximum Profit with Unlimited Stock Transactions

Maximum Profit with Unlimited Stock Transactions Given daily stock prices, compute the maximum profit from any number of buy-and-sell transactions. Yo...

Coding & Algorithms
4
0
32 people solved
Dec 14, 2025
Microsoft logo
Microsoft
Medium
Machine Learning EngineerSenior+ Locked

Compare preference alignment methods for LLMs

This question evaluates expertise in preference alignment techniques for large language models—including supervised fine-tuning, RLHF-style reward-mod...

Machine LearningFine-Tuning & Alignment TechniquesAI Safety & Alignment
14
0
106 people solved
Jan 6, 2026
Apple logo
Apple
Hard
Data Scientist

Compute optimal matrix-chain multiplication order

Matrix Chain Multiplication: Optimal Parenthesization and Analysis You are given five matrices to multiply: A1 (10×30), A2 (30×5), A3 (5×60), A4 (60×2...

Coding & Algorithms
9
0
89 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Demonstrate Amazon leadership principles

Demonstrate Amazon leadership principles Behavioral & Leadership Interview (Software Engineer — Onsite) Provide STAR-structured answers (Situation, Ta...

Behavioral & Leadership
7
0
48 people solved
Aug 4, 2025
Bnp logo
Bnp
Easy
Data Scientist

Explain and compute option delta

In options trading, what is an option’s delta? 1) Give the definition of delta and explain its intuition/sign for calls vs puts. 2) Under the Black–Sc...

Software Engineering Fundamentals
6
0
56 people solved
Jan 5, 2026
Amazon logo
Amazon
Medium
Software Engineer

Detect words formed by multiple dictionary parts

Given an array words of up to 100,000 non-empty lowercase strings (total characters ≤ 1,000, 000), return all strings that can be formed by concatenat...

Coding & Algorithms
4
0
68 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Find when failures started in log stream

This question evaluates understanding of monotonic sequences and search algorithms (such as binary search), along with algorithmic reasoning about cor...

Coding & AlgorithmsBinary Search
5
0
97 people solved
Jan 22, 2026
Meta logo
Meta
Hard
Data Scientist

Communicate trade-offs and influence launch

Product Experiment Trade‑off: Notifications for Multi‑Account Users Context You ran an experiment on notification delivery to users who often maintain...

Behavioral & Leadership
3
0
47 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Design metrics and an A/B test for an app

Pick a consumer digital app you love. Assume the interviewer knows nothing about it. 1) Explain the product, core jobs-to-be-done, target audience seg...

Analytics & Experimentation
5
0
68 people solved
Oct 13, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Verify and modify inorder subsequence

Question Given a binary tree and a sequence of numbers, design an algorithm to check in O(n) time and O( 1) extra space whether the sequence is a subs...

Coding & AlgorithmsTreesDynamic Programming
20
1
157 people solved
Aug 4, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Discuss large language models

Discuss large language models LLMs: Advances, Product Integration, Production Challenges, and Risk Mitigation Context You are interviewing for a Softw...

Machine Learning
4
0
80 people solved
Aug 4, 2025
Capital One logo
Capital One
Hard
Data Scientist

Evaluate merchant partnership for high-value customers

Partnership evaluation to acquire high‑LTV cardholders: Home‑sharing (RH) vs Big‑box retailer Context C1, a credit‑card issuer, is considering marketi...

Analytics & Experimentation
6
0
71 people solved
Oct 13, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Review Python geodata code

Question You are given a Python codebase that performs geolocation data processing. Conduct a thorough code review: identify readability, correctness,...

Coding & Algorithms
12
0
55 people solved
Jul 29, 2025
Previous1...428429430...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