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
Snowflake logo
Snowflake
Medium
Software Engineer

Compute shortest path between tree nodes

Question You are given the root of a binary tree (not necessarily a BST) whose nodes have integer values, and two target values u and v. Implement a f...

Coding & AlgorithmsTrees
9
0
160 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software EngineerIntern

Manipulate time-series with Pandas groupby

Given a DataFrame events(user_id, event_type, ts_utc, revenue): 1) Parse ts_utc as timezone-aware, convert to America/Los_Angeles, and handle DST tran...

Data Manipulation (SQL/Python)
4
0
40 people solved
Aug 10, 2025
ByteDance logo
ByteDance
Medium
Software EngineerIntern Locked

Choose Precision, Recall, or F1 for Agent Evaluation

Choose precision, recall, or F1 to evaluate three agents by error costs, decision thresholds, and representative ground-truth evidence.

Machine LearningModel Evaluation
5
0
42 people solved
Aug 23, 2026
Apple logo
Apple
Medium
Machine Learning Engineer Locked

Debug a PyTorch U-Net shape mismatch

This question evaluates proficiency in PyTorch model implementation, convolutional output shape arithmetic, channel configuration, and debugging of U-...

Coding & AlgorithmsML CodingComputer Vision
21
0
210 people solved
Mar 1, 2026
Airwallex logo
Airwallex
Medium
Data ScientistSenior+

Funnel SQL: Cohort Signup Rate, Campaign KYC Submit Rates and Monthly Visitor Growth

A fintech company that serves businesses tracks its website acquisition funnel in three tables. A visitor arrives in a session, sometimes through a ma...

Data Manipulation (SQL/Python)SQLSegmentation & Cohort Analysis
0
0
2 people solved
Aug 15, 2026
Figma logo
Figma
Medium
Data Scientist Locked

Present a Relevant Data Science Project to a Hiring Manager

Prepare a hiring-manager walkthrough of a data science project from problem framing through validation and stakeholder decision. Show your personal ow...

Behavioral & Leadership
4
0
46 people solved
Jul 14, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Create a Binary Tree from Parent-Child Descriptions

Problem Build a binary tree from parent-child descriptions. Each description is [parentValue, childValue, isLeft], where isLeft is 1 for a left child ...

Coding & Algorithms
6
0
53 people solved
Mar 12, 2026
Scale AI logo
Scale AI
Medium
Machine Learning Engineer

Implement universal adversarial attack on GPT-2

Robustness Evaluation: Universal Adversarial Prompts for GPT-2 You are in a Machine Learning Engineer interview. Explain how you would build a control...

Machine LearningAI Safety & AlignmentLLM Evaluation
23
0
232 people solved
Jul 8, 2025
Tinder logo
Tinder
Medium
Product Manager

Design a Tinder Feature to Cut Ghosting After Users Match

You are a product manager at Tinder. The company wants to cut down on ghosting, where one person in a match goes silent without any explanation and th...

Product Design & StrategyProduct Design & ImprovementExperiment Design (A/B Testing)
0
0
7 people solved
Sep 27, 2026
Akuna Capital logo
Akuna Capital
Medium
Software Engineer

Solve swaps, graph paths, and movie DP

Solve swaps, graph paths, and movie DP Design and implement solutions for three tasks derived from a HackerRank-style assessment. 1) Minimum swaps to ...

Coding & Algorithms
9
0
154 people solved
Aug 8, 2025
Intuit logo
Intuit
Hard
Data Scientist

Diagnose rising delivery cost precisely

Problem: Delivery Cost per Order Increased — Design an Analysis Plan Context A restaurant reports a significant increase in delivery cost per order in...

Analytics & Experimentation
11
0
77 people solved
Oct 13, 2025
OpenAI logo
OpenAI
Hard
Machine Learning Engineer Locked

Select high-quality math documents from crawls

This ML System Design question evaluates the ability to design scalable, production-grade pipelines for extracting and quality-scoring mathematical co...

ML System DesignAnnotation & Label QualityData Ingestion & CDC
20
0
197 people solved
Dec 15, 2025
Nextdoor logo
Nextdoor
Hard
Data Engineer

Design KPI dashboard tables: retention, weekly rollups, timezone

Question You are designing the analytical data model behind a fast KPI dashboard for a large-scale photo-sharing app. The dashboard is reported daily ...

System DesignDimensional ModelingBI & Reporting Systems
18
0
146 people solved
Feb 8, 2026
Rippling logo
Rippling
Medium
Software Engineer

Compute unique-dasher concurrency with tie-breaking

You are given N delivery assignments, each as (dasherId, startTime, endTime) with 0 <= startTime < endTime. A single dasher may hold multiple overlapp...

Coding & AlgorithmsIntervals & SchedulingSorting
32
1
307 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Machine Learning EngineerIntern AI Locked

Derive Linear Regression Solution

This question evaluates understanding of one-dimensional linear regression estimation, the statistical derivation of the mean squared error objective ...

Machine Learning
17
0
123 people solved
Feb 8, 2026
Uber logo
Uber
Medium
Software Engineer

Implement uniform sampling in squares

Implement uniform sampling in squares Implement a class Square representing an axis-aligned square on the 2D plane that supports sampling a uniformly ...

Coding & AlgorithmsMath & Number TheoryProbability
9
0
108 people solved
Jul 15, 2025
Google logo
GoogleBloombergAmazonMeta

Also asked at Amazon, Meta

Medium
Software Engineer

Count All Maximum-Length Strictly Increasing Subsequences

Problem Return the number of longest strictly increasing subsequences in nums. Subsequences preserve index order but need not be contiguous. Different...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
9 people solved
Amazon logo
Amazon
Medium
Product Manager

Amazon Behavioral Deep-Dive

Amazon PM Behavioral Deep-Dive Prompt Set Prepare concise STAR stories for the Amazon Product Manager behavioral round. The interviewer may probe any ...

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
31
0
246 people solved
Jul 4, 2025
Amazon logo
Amazon
Medium
Applied Scientist Locked

Debug online worse than offline model performance

This question evaluates the ability to diagnose discrepancies between offline and online model performance by reasoning about data distributions, feat...

ML System Design
6
0
82 people solved
Jan 6, 2026
Google logo
Google
Hard
Software Engineer Locked

Design street-view image ingestion and storage system

This question evaluates understanding of large-scale system design for media ingestion, covering distributed ingestion pipelines, durable storage and ...

System DesignFile & Media StorageAuthentication & Authorization
30
0
333 people solved
Jan 22, 2026
Previous1...451452453...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