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
Meta logo
Meta
Medium
Product Manager

Root-cause a 10% decline in Facebook friend requests

You are a product manager at Meta. The number of friend requests on Facebook is down 10%. Walk through how you would evaluate why it fell. `hint Find ...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
0
0
8 people solved
Mar 9, 2025
Google logo
Google
Medium
Software Engineer Locked

Answer parity-alternation range queries

This question evaluates a candidate's ability to reason about array properties and design efficient range-query processing for alternating-parity suba...

Coding & AlgorithmsArrays & Strings
15
1
128 people solved
Jan 6, 2026
Amazon logo
Amazon
Medium
Software Engineer

Compute rightmost-smaller delay times

Given an integer array priorities, define delay[i] as the distance to the rightmost index j > i such that priorities[j] < priorities[i]; if no such in...

Coding & Algorithms
7
0
65 people solved
Sep 6, 2025
MathWorks logo
MathWorks
Medium
Software Engineer

Design a Scalable Product Authentication Platform

Design the authentication infrastructure for a cloud product. Users log in with email and password; the design should be able to add external identity...

System Design
4
0
34 people solved
Feb 3, 2026
Amazon logo
Amazon
Medium
Applied Scientist Locked

Explain Transformer and MoE Fundamentals

This question evaluates a candidate's conceptual mastery of modern deep-learning internals for large-language models, including distinctions between t...

Machine LearningTransformers & Attention
32
0
240 people solved
May 14, 2026
Amazon logo
Amazon
Medium
Software Engineer

Compute tree diameter

Given a (potentially large) binary tree, compute its diameter (the number of edges on the longest path between any two nodes). Implement an O(n) solut...

Coding & Algorithms
6
0
69 people solved
Sep 6, 2025
Citadel logo
Citadel
Medium
Data Scientist Locked

Relate Y-on-X and X-on-Y coefficients

This question evaluates understanding of simple linear regression theory, specifically the algebraic relationship between the slope of Y on X and the ...

Statistics & Math
12
0
77 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Estimation case: size the market opportunity for Google Translate

How large is the total addressable market for Google Translate? Walk me through your estimate. `hint Decide who pays Most people use Translate for fre...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
May 2, 2024
Meta logo
Meta
Hard
Data Scientist Locked

Model preference without ground truth

This question evaluates a data scientist's competency in uplift modeling, causal inference, experimental design, weak supervision, and bias and shift ...

Machine Learning
3
0
34 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Facebook login security and a 30% satisfaction gap: diagnose causes, critique the survey

Facebook surveyed two groups of users, 50,000 in each, about how satisfied they are. Users in the first group, labeled the experiment group, had certa...

Analytics & ExperimentationCausal InferenceExperiment Design (A/B Testing)
0
0
6 people solved
Apr 19, 2024
Apple logo
Apple
Medium
Product Manager

Articulating Your Career Motivations and How This Role Fits Them

The interviewer wants to know what you are hoping to find in your next job. Explain what you are looking for, and why. `hint Check each want against t...

Behavioral & LeadershipMotivation & Fit
0
0
6 people solved
Dec 20, 2023
Instacart logo
Instacart
Medium
Data Scientist

Write SQL to rank advertisers and profitability

You are given two denormalized tables. Use ANSI SQL (CTEs allowed) and UNPIVOT (or an equivalent UNION ALL approach if UNPIVOT is unavailable). Table:...

Data Manipulation (SQL/Python)
5
0
43 people solved
Oct 13, 2025
Uber logo
Uber
Hard
Data Scientist

Evaluate impact without randomized experiments

Estimating a Promotion's Causal Effect Without an Experiment Context You need to estimate the causal impact of a marketing promotion on engagement (e....

Analytics & ExperimentationCausal Inference
7
0
92 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Technical Program ManagerSenior+

Answer core behavioral questions

You are interviewing for a Senior Program Manager role at Uber. Prepare strong, concise answers to these behavioral questions: 1. Why Uber? 2. Why are...

Behavioral & LeadershipMotivation & FitProject Deep Dive
25
0
322 people solved
May 1, 2025
Point72 logo
Point72
Medium
Data Scientist

Write SQL for top student per department

Schema: Departments(dept_id PK, dept_name) Students(student_id PK, student_name, dept_id FK nullable, gpa numeric(3,2) nullable, enrolled_at date) Sam...

Data Manipulation (SQL/Python)
3
0
28 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Google Market-Entry Call on Vending: Run Machines, Partner or Stay Out

Google is considering a move into the vending machine business. Decide whether it should, and give a clear recommendation. When asked what entering th...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
6 people solved
Oct 26, 2025
Coinbase logo
Coinbase
Medium
Data ScientistSenior+

How would you A/B test first trade rate?

Coinbase wants to increase the rate at which newly signed-up retail users place their first trade. Design an A/B test for a product change intended to...

Analytics & Experimentation
6
0
62 people solved
Mar 25, 2025
Notion logo
Notion
Medium
Product Manager

Pitch Notion's CEO Three Improvement Ideas as a Newly Hired PM in 2021

It is August 2021, and you have just joined Notion as a product manager. The CEO asks you to bring three ideas that would make Notion better and leave...

Product Design & StrategyProduct Design & ImprovementGrowth & Monetization
0
0
8 people solved
Apr 21, 2025
Meta logo
Meta
Medium
Product Manager

Meta Payments Strategy: Build In-House or Partner with a Payments Provider

Suppose Meta had never launched Meta Pay. Would you advise Meta to build its own payment product in-house or to partner with an established payments c...

Product Design & StrategyProduct StrategyPayments & Ledgers
0
0
5 people solved
Sep 12, 2025
Uber logo
Uber
Medium
Product Manager

Product Sense: An App to Support the Daily Work of Trucking Dispatchers

You are a product manager asked to create an app for dispatchers in trucking: the people who decide which driver and truck take each load, stay in tou...

Product Design & StrategyProduct Sense
0
0
6 people solved
Nov 10, 2023
Previous1...772773774...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