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
Amazon logo
Amazon
Medium
Applied ScientistSenior+ Locked

Designing a Bayesian Classifier for Case Analysis

Practice source-bounded Bayesian classifier reasoning by stating assumptions, modeling informative missingness, updating priors, and validating calibr...

Machine Learning
4
0
50 people solved
Aug 15, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Design stack with O(1) minimum query

This question evaluates understanding of stack-based data structures, constant-time operation constraints, and handling edge cases such as empty queri...

Coding & AlgorithmsData Structure DesignStacks & Queues
67
0
508 people solved
Feb 1, 2026
Microsoft logo
MicrosoftGoogleAmazon

Also asked at Amazon, Bloomberg, Swiggy, Meta

Easy
Software Engineer

Exchange One Box Each to Equalize Two Candy Totals

Problem Each value in aliceSizes or bobSizes is the candy count in one box owned by that person. Exchange exactly one box from each person so their ne...

Coding & AlgorithmsArrays & StringsMath & Number Theory
0
0
7 people solved
Google logo
GoogleAmazonAT&T

Also asked at AT&T, Microsoft, Meta, Bloomberg

Medium
Software Engineer

Choose a Highest-Sum Distinct Subarray

Problem Erase exactly one nonempty contiguous subarray of the positive array nums. Its values must all be distinct, and its score is their sum. Return...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
9 people solved
Google logo
GoogleIntuitTikTok

Also asked at TikTok, Amazon, Microsoft, Snapchat, Meta, Oracle, DoorDash, Verkada, Motive

Hard
Software Engineer

Evaluate Parenthesized Integer Arithmetic

Problem Evaluate the valid arithmetic string s containing nonnegative integer tokens, +, -, *, / and parentheses. Apply ordinary precedence, grouping ...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
17 people solved
Netflix logo
Netflix
Medium
Software Engineer Locked

Discuss Collaboration, Feedback, and Conflict

Prepare three real examples that demonstrate collaboration, response to feedback, and constructive conflict. For each, clarify the shared goal, your c...

Behavioral & Leadership
6
0
85 people solved
Jun 24, 2026
Tesla logo
Tesla
Easy
Software Engineer Locked

Shortest Bridge to Connect Two Islands

This question evaluates understanding of grid-based graph traversal, specifically combining flood fill with multi-source breadth-first search. It test...

Coding & Algorithms
15
0
104 people solved
Jun 29, 2026
StackAdapt logo
StackAdapt
Medium
Machine Learning Engineer

Camel and Bananas: Maximize Bananas Delivered Across the Desert

A camel has to move bananas from a starting point across a desert to a market. Assume the standard parameters of this classic brainteaser: - 3,000 ban...

Statistics & MathPuzzles & Brainteasers
3
0
58 people solved
Sep 9, 2026
Scribd logo
Scribd
Medium
Software Engineer Locked

Many-to-Many Schema Design With a Join Table, Composite Primary Key, and Queries

A database schema and SQL question that asks you to model a many-to-many relationship between documents and tags with a join table and a composite pri...

Data Manipulation (SQL/Python)SQLIndexing & Query Performance
1
0
23 people solved
Sep 4, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Compare Stack and Heap Memory and Probe Stack Direction

Compare automatic stack storage with dynamic heap allocation in C++, including lifetime, ownership, cost, size, and failure modes. Then design a neste...

Software Engineering Fundamentals
4
0
95 people solved
May 15, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Resolve Package Dependencies with Cycle Detection

Produce a deterministic dependency-first build order for every package reachable from a target. Candidates must handle shared dependencies, references...

Coding & Algorithms
10
0
78 people solved
Jul 29, 2026
Harvey logo
Harvey
Medium
Backend Engineer

Implement tag matcher and filesystem

This interview reportedly included two coding problems: 1. Tag matching in text Given a sentence and a list of tags or keywords, return the tags th...

Coding & AlgorithmsString AlgorithmsOperating Systems
13
0
168 people solved
Feb 18, 2026
Quora logo
Quora
Medium
Product Manager

Building a Q&A Product That Can Win Askers and Answerers Away from Quora

You are asked to design a new product that competes with Quora, the platform where people post questions and other users write, vote on and discuss an...

Product Design & StrategyProduct SenseGrowth & Monetization
1
0
12 people solved
Aug 8, 2026
Pinduoduo logo
Pinduoduo
Medium
Software Engineer

Clockwise Spiral Matrix Traversal That Turns at Blocked Cells

Given an m x n matrix of integers, return its values in clockwise spiral order: start at the top-left cell, go right along the top row, down the right...

Coding & AlgorithmsGrids & MatricesSimulation & State Machines
2
0
18 people solved
Jul 17, 2026
Amazon logo
AmazonGoogleDoorDash

Also asked at DoorDash, Meta, Bloomberg, Goldman Sachs, Sprinklr

Medium
Software Engineer

Detect a Strict 132 Pattern

Detect a Strict 132 Pattern Given an integer array nums, determine whether it contains three indices i < j < k such that: `text nums[i] < nums[k] < nu...

Coding & AlgorithmsStacks & QueuesArrays & Strings
0
0
6 people solved
Pinduoduo logo
Pinduoduo
Easy
Software Engineer Locked

Discuss Your Background, Job-Change Motivation, and Offer Acceptance Factors

Prepare a recruiter conversation about education and work history, job-change motivation, compensation expectations, reporting lines, and cross-region...

Behavioral & LeadershipMotivation & Fit
1
0
21 people solved
Sep 2, 2026
Salesforce logo
Salesforce
Medium
Member of Technical Staff Locked

Implement Merge Sort and Return a Sorted Array

Implement merge sort from first principles and return integers in nondecreasing order without a built-in sort. The exercise covers empty input, duplic...

Coding & Algorithms
8
0
77 people solved
Aug 31, 2026
Box logo
Box
Hard
Machine Learning Engineer Locked

Improve Keyword Search Ranking

This question evaluates an ML engineer's search system design competency, including information retrieval and ranking principles, feature and model se...

ML System DesignRanking ModelsAnnotation & Label Quality
25
0
174 people solved
Jun 5, 2026
Databricks logo
Databricks
Hard
Software Engineer Locked

Design a Visa-like payment processing system

This question evaluates a candidate's ability to design a secure, low-latency card payment processing network, testing knowledge of distributed system...

System DesignPayments & LedgersDistributed Transactions & Idempotency
31
0
541 people solved
Feb 12, 2026
Meta logo
Meta
Hard
Machine Learning Engineer

Design Nearby and Notification Ranking

Two machine learning system design prompts were mentioned: 1. Nearby place recommendation for a mobile user Design a real-time recommendation syste...

ML System DesignRanking ModelsRecommendation Systems
14
0
206 people solved
Jan 30, 2026
Previous1...243244245...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