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
Meta logo
Meta
Medium
Data Scientist

Evaluate Success of 'Similar Listings' Notification Feature

Evaluate Success of 'Similar Listings' Notification Feature Marketplace Analytics Case: "Similar Listings You May Like" Notifications Context You work...

Analytics & Experimentation
7
0
49 people solved
Aug 4, 2025
Upstart logo
Upstart
Easy
Data Scientist

Assess Probability of Heads in Coin Tosses

Assess Probability of Heads in Coin Tosses Probability with Coin Tosses and the Normal Distribution Context Onsite data scientist screening question a...

Statistics & MathProbability
32
0
112 people solved
Aug 4, 2025
Amazon logo
Amazon
Hard
Software Engineer Locked

Design a Core Dump Collection and Analysis System

Prepare for a Amazon system design interview about design a core dump collection and analysis system. This question focuses on requirements, architect...

System Design
4
0
61 people solved
Jun 4, 2026
Uber logo
Uber
Hard
Software Engineer Locked

Solve Wonderful Strings and Grid Queries

This question evaluates algorithm design and data-structure competencies through two problems: a parity-constrained minimum-cost string transformation...

Coding & Algorithms
7
0
51 people solved
May 13, 2026
TCS logo
TCS
Hard
Data Scientist

Compare Tableau blending, joins, and filters

Tableau Integration Exercise: Joins vs Blends, Filters, and Order of Operations Data You have two sources. Primary (Orders) - Columns: OrderID, State,...

Analytics & ExperimentationBI & Reporting SystemsSQL
15
0
122 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Validate a JSON-like string

This question evaluates parsing and string-processing skills, focusing on structural validation of JSON-like text including matching and nesting of br...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
11
0
153 people solved
Jan 6, 2026
Snapchat logo
Snapchat
Medium
Data Scientist

Determine Optimal Energy Project for 10% ROI Target

Determine Optimal Energy Project for a 10% ROI Target An energy company is evaluating investments in new renewable projects and must hit a 10% annual ...

Analytics & Experimentation
96
0
399 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Design multi-tenant ingestion and processing platform

This question evaluates a candidate's ability to architect scalable, multi-tenant data ingestion and processing platforms, assessing competencies in t...

System DesignSystem Design FundamentalsSandboxing & Isolation
21
0
181 people solved
Jan 6, 2026
Amazon logo
Amazon
Hard
Data Scientist

Diagnose and fix underperforming ML model

Rapidly Improving Recall Under Class Imbalance (One-Day Plan) Context You inherit a binary fraud detection model with severe class imbalance (positive...

Machine LearningModel EvaluationML Fundamentals
12
0
110 people solved
Oct 13, 2025
Bnp logo
Bnp
Easy
Data Scientist

What are linear regression assumptions?

You fit an ordinary least squares (OLS) linear regression model. 1) What are the key assumptions behind OLS (for unbiasedness and for valid inference)...

Machine Learning
5
0
46 people solved
Jan 5, 2026
Citadel logo
Citadel
Medium
Software EngineerIntern

Describe a Difficult Challenge and How You Resolved It

Prompt Tell a specific story about a difficult project challenge. Explain the goal, why the challenge was genuinely hard, the actions you personally t...

Behavioral & Leadership
4
0
37 people solved
May 10, 2025
Nike logo
Nike
Medium
Software Engineer Locked

Design a PDF Ingestion and Retrieval-Augmented Generation Pipeline

Design PDF ingestion and retrieval-augmented generation with page-level citations across selectable text, scans, tables, repeated headers, malformed f...

ML System Design
0
0
9 people solved
Aug 4, 2026
UiPath logo
UiPath
Medium
Machine Learning Engineer

Implement cocktail shaker sort and analyze

Implement the cocktail shaker sort (bidirectional bubble sort) for an array of integers. Optimize it with early termination and shrinking bounds, and ...

Coding & Algorithms
7
0
55 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Medium
Data Scientist

Explain Deep Learning to a 5-Year-Old Child

Explain Deep Learning to a 5-Year-Old Child Microsoft Phone-Screen: Machine Learning Fundamentals You are interviewing for a machine learning/data sci...

Machine Learning
6
0
68 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Software Engineer AI Locked

Solve a Key-Door Corridor Maze

This question evaluates graph search and state-space reasoning by requiring shortest-path computation in a constrained one-dimensional maze with colle...

Coding & Algorithms
3
0
57 people solved
May 14, 2026
Meta logo
Meta
Easy
Data Scientist

Compare Ad-Insertion Strategies: Expected Ads and Probabilities

Newsfeed Ad-Insertion Strategies You are evaluating two ways to insert ads into a user's newsfeed. A user views a contiguous sequence of posts. - Stra...

Statistics & Math
40
0
160 people solved
Jul 12, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Describe an impactful consumer project

Behavioral: End-to-End Consumer Project (Software Engineer) You are interviewing for a software engineering role focused on consumer-facing products. ...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
12
0
95 people solved
Sep 6, 2025
Coinbase logo
Coinbase
Medium
Data Scientist

Write SQL and Python for funnels/retention

Given the following schema and small samples, answer Parts A–C. Assume timestamps are UTC and "today" is 2025-09-01. Schema: users(id INT, country STR...

Data Manipulation (SQL/Python)
2
0
20 people solved
Oct 13, 2025
Airbnb logo
Airbnb
Medium
Data Scientist

Influence Decisions Without Direct Authority: Strategies and Outcomes

Influence Decisions Without Direct Authority This behavioral prompt asks about influencing cross-functional decisions without formal authority in a da...

Behavioral & LeadershipLeadership & InfluenceCommunication & Stakeholders
17
0
146 people solved
Jul 12, 2025
Google logo
Google
Easy
Software Engineer

Describe conflict, ambiguity, and process improvement

Prepare STAR-style responses for these behavioral prompts: - Tell me about a time you had a conflict with your manager. - Tell me about a time you imp...

Behavioral & Leadership
10
0
75 people solved
Jan 1, 2026
Previous1...445446447...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