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
Google
Medium
Product Manager

Google Maps Live Location Sharing: Architecture for Freshness, Battery and Privacy

You are a product manager on Google Maps, and the interviewer wants to see how well you understand the engineering behind location sharing: the featur...

System DesignTechnical Tradeoffs for PMsReal-Time Systems
1
0
12 people solved
Jan 24, 2025
Blinkit logo
Blinkit
Medium
Product Manager

Laundry pickup and delivery service built on Blinkit's quick-commerce fleet

In a product manager interview, you are asked to design a laundry product for Blinkit, the Indian quick-commerce company known for delivering grocerie...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
8 people solved
Jul 4, 2026
Amazon logo
Amazon
Medium
Product Manager

Behavioral: Persistent Questioning and Investigation to Uncover the Full Picture

Tell me about a time when you needed to keep asking questions or investigate further before you fully understood something. Walk through what you were...

Behavioral & LeadershipAmbiguity & Decision Making
0
0
7 people solved
Jan 18, 2026
Optiver logo
Optiver
Medium
Software Engineer

Count nonnegative buy/sell sequences

You must perform exactly 2n unit trades starting with 0 shares and ending with 0 shares. Each trade is either a buy (+1 share) or a sell (−1 share), a...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
29
0
204 people solved
Jul 16, 2025
Google logo
Google
Medium
Software Engineer

Prepare Behavioral Stories for Stakeholders, Mistakes, and Ownership

Prepare behavioral stories for stakeholders, simplifying systems, mistakes, learning new technology, disagreement, and ownership. `hint Hint 1 Start b...

Behavioral & LeadershipCommunication & StakeholdersFailure & Learning
6
0
61 people solved
Apr 28, 2026
Meta logo
Meta
Medium
Software Engineer

Solve four algorithmic problems

Solve the following coding tasks. For each, describe your approach, complexity, and handle edge cases. 1) Make parentheses string valid with minimal d...

Coding & Algorithms
10
0
80 people solved
Oct 12, 2025
Citadel logo
Citadel
Medium
Data Scientist

Explain multicollinearity and OLS assumptions

Explain multicollinearity and OLS assumptions Linear Regression Technical Screen: OLS Assumptions and Multicollinearity Context: You are asked to summ...

Statistics & MathRegression & Statistical Modeling
9
0
104 people solved
Jul 27, 2025
Affirm logo
Affirm
Medium
Product Manager

Spotify Growth Plan: Converting Free Listeners and Reducing Premium Churn

You are a product manager on Spotify Premium. Put together a plan to grow the number of people paying for Premium, and explain how you would know it i...

Product Design & StrategyGrowth & Monetization
1
0
7 people solved
Oct 9, 2025
Amazon logo
Amazon
Medium
Software Engineer

Compute unique visitors by department

You have two tables: products(product_id, department, category, subcategory) where department > category > subcategory form a parent–child hierarchy, ...

Data Manipulation (SQL/Python)
3
0
37 people solved
Jul 26, 2025
Bloomberg logo
Bloomberg
Hard
Software Engineer

Solve Stack Decoding and Fuel-Constrained Paths

You are given two independent coding tasks. Task 1: Decode a Repeated-Pattern String Given a valid encoded string, return its fully decoded form. The ...

Coding & Algorithms
8
1
60 people solved
Dec 31, 2025
Character.AI logo
Character.AI
Medium
Software Engineer Locked

Find Shortest Covering Substring

This question evaluates proficiency in string processing, handling character multiplicities, and designing time- and space-efficient algorithms for su...

Coding & Algorithms
1
0
22 people solved
May 22, 2026
Microsoft logo
Microsoft
Easy
Data Scientist Locked

Traverse org chart level by level

This question evaluates understanding of hierarchical data modeling and tree traversal, specifically breadth-first (level-order) traversal and reconst...

Coding & Algorithms
14
0
110 people solved
Feb 9, 2026
Rippling logo
Rippling
Medium
Software Engineer

Find minimum of unknown convex function

You are given access to an unknown univariate convex function \(f(x)\) defined on a closed interval \([L, R]\) on the real line. - You cannot see the ...

Machine LearningBinary Search
9
0
149 people solved
Dec 8, 2025
SocialPilot logo
SocialPilot
Medium
Product Manager

Product Sense: Build a Seller Tool for Running a Shop Through Instagram

You are a product manager asked to design a product, on the web, on mobile or both, that helps people sell their products through Instagram. Decide wh...

Product Design & StrategyProduct SenseMetrics & KPIs
1
0
7 people solved
May 21, 2026
Instacart logo
Instacart
Hard
Data Scientist

Improve low R² without p‑hacking

Predicting Contribution per Order with Low R² Context You are modeling contribution per order (a continuous per-order outcome such as margin or profit...

Machine LearningRegression & Statistical ModelingFeature Engineering
14
0
120 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer

Implement weighted random index picker

Implement weighted random index picker Design a class WeightedPicker that is initialized with an array of positive integer weights w and supports pick...

Coding & Algorithms
5
0
49 people solved
Jul 15, 2025
American Express logo
American Express
Medium
Product Manager

Your Product Operating Model and How You Turn Strategy into Measurable Goals

An interviewer for a product manager role at American Express asks a two-part behavioral question about how you work: first, how you approach product ...

Behavioral & LeadershipMetrics & KPIsRoadmapping & Planning
1
0
16 people solved
Aug 28, 2025
Walmart Labs logo
Walmart Labs
Medium
Software Engineer

Design an online ticket marketplace

Design a Ticketmaster-like system for discovering events and buying tickets. Your design should cover: - Functional requirements (e.g., browse/search ...

System DesignSystem Design FundamentalsPayments & Ledgers
18
0
165 people solved
Mar 4, 2026
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Extract stream prefix before stop token

This question evaluates streaming string processing, incremental substring detection across chunk boundaries, and memory-efficient algorithm design fo...

Coding & Algorithms
5
0
92 people solved
Feb 1, 2026
Cerebras logo
Cerebras
Medium
Software EngineerSenior+

Explain Learning and Conflict Approaches

Behavioral Questions: Learning in Ambiguity, Conflict Management, and Learning Approach Context: You are interviewing for a Software Engineer role in ...

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
11
0
127 people solved
Sep 6, 2025
Previous1...537538539...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