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
Disney logo
Disney
Easy
Software Engineer

How would you run a mentoring-focused code review?

Scenario You’re given a poorly written frontend code change (e.g., a React/TypeScript component + related state and API calls) authored by a junior en...

Software Engineering FundamentalsCode Quality & MaintainabilityMentoring & Team Growth
9
0
99 people solved
Nov 24, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Answer rapid-fire behavioral questions

Answer rapid-fire behavioral questions In the DoorDash software engineer technical screen, you are asked to answer a rapid-fire battery of behavioral ...

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
21
0
177 people solved
Jul 31, 2025
IXL Learning logo
IXL Learning
Hard
Software EngineerNew Grad Locked

Maintain a Stream Median

This question evaluates the ability to design and implement efficient online data structures and algorithms for maintaining dynamic order statistics a...

Coding & Algorithms
7
0
60 people solved
Feb 22, 2026
Microsoft logo
Microsoft
Medium
Product Manager

Behavioral: Pushing Back on an Unrealistic Customer Demand While Keeping the Relationship

In a product manager interview, you are asked to talk about a time a client asked you for something unreasonable. Explain how you handled the request ...

Behavioral & LeadershipCommunication & StakeholdersConflict & Collaboration
0
0
12 people solved
Jun 30, 2026
xAI logo
xAI
Medium
Machine Learning Engineer

What are processes vs threads?

Question Explain the difference between multiprocessing and multithreading in the context of building concurrent applications. Cover the following: - ...

Software Engineering FundamentalsOperating Systems
41
0
275 people solved
Feb 12, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Data Scientist

Find probability of overlapping blooms

Overlap Probability of Two Random Bloom Periods Assumptions - Time is measured in days over a 30-day horizon. - Each flower begins blooming once, at a...

Statistics & MathProbability
53
0
364 people solved
Aug 11, 2025
C3 AI logo
C3 AI
Medium
Data ScientistIntern

Identify What Does Not Fix Vanishing Gradients

Identify What Does Not Fix Vanishing Gradients Which change is not a reliable remedy for vanishing gradients in a deep neural network: adding skip con...

Machine LearningNeural Networks & Training
2
0
23 people solved
Sep 15, 2026
DoorDash logo
DoorDash
Medium
Data Scientist

Resolve Conflicts and Deliver Results Under Pressure

Behavioral Interview: Conflict, Limited Resources, and Critical Feedback You are in cross-functional and hiring-manager interviews for a Data Scientis...

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
77
0
220 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Software Engineer

Implement a versioned in-memory DB with CAS and history

In-Memory DB V2: TTL + Compare-And-Set/Delete + Historical Reads Implement an in-memory database keyed by (key, field) supporting TTL, conditional upd...

Coding & AlgorithmsKey-Value StoresData Structure Design
10
0
99 people solved
Feb 11, 2026
Two Sigma logo
Two Sigma
Medium
Data Scientist Locked

Compute robust linear interpolation with edge cases

Derive the linear interpolant through two points given in either order, evaluate it at a query, and rewrite it as a convex combination. Define a rule ...

Statistics & MathMath & Number Theory
10
0
106 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Software Engineer

Find minimum activations to absorb all balls

You are given n balls on a 2D plane, where ball i is at coordinate \((x_i, y_i)\). You are also given a distance threshold d. Two balls are considered...

Coding & AlgorithmsGraphs
23
0
287 people solved
Mar 1, 2026
Revolut logo
Revolut
Medium
Product Manager

Revolut Activation Funnel: Plan a 15% Lift from Sign-Up to First Outgoing Payment

You are a product manager at Revolut. Revolut's onboarding journey starts when a new customer signs up and ends when that customer makes their first o...

Product Design & StrategyUser Behavior & FunnelsExperiment Design (A/B Testing)
1
0
18 people solved
Nov 22, 2025
Google logo
Google
Medium
Product Manager

Define NotebookLM's Strategic Position Within Google's Gemini Product Lineup

Google offers NotebookLM next to a growing family of Gemini-branded products. As a PM at Google, decide what job NotebookLM should do within that line...

Product Design & StrategyProduct Strategy
1
0
8 people solved
Jun 13, 2026
Capital One logo
Capital One
Medium
Product Manager

Diagnosing an Instagram daily active user decline while monthly actives stay flat

You are a product manager at Meta. Instagram's daily active users (DAU) are falling, while monthly active users (MAU) have stayed flat. How would you ...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
1
0
15 people solved
Jan 26, 2026
Quantbot Technologies logo
Quantbot Technologies
Hard
Data Scientist Locked

Implement GLM Training and Prediction from an Explicit Family and Link

Explain a from-scratch generalized linear model through family and link selection, consistent loss and gradients, numerical stability, and prediction ...

Machine LearningRegression & Statistical ModelingML Coding
2
0
26 people solved
Sep 13, 2026
Medium
Software Engineer

Implement an LRU Cache with Constant-Time Operations

Implement an LRU cache with a positive capacity. get(key) returns the stored value and makes that entry most recently used, or returns -1 if absent. p...

Coding & AlgorithmsData Structure DesignLinked Lists
1
0
8 people solved
May 11, 2026
Amazon logo
AmazonGoogleMicrosoftMeta

Also asked at Microsoft, Meta

Easy
Software Engineer

Count Odd Integers in an Inclusive Range

Problem Return how many odd integers lie between nonnegative low and high,inclusive. `cpp class Solution { public: int countOdds(int low, int high...

Coding & AlgorithmsMath & Number Theory
0
0
10 people solved
Uber logo
Uber
Medium
Data Scientist

Design a Ride-Hailing ETA System

You are a Data Scientist at a ride-hailing company. Design an ETA system used in the rider and driver apps to estimate both pickup ETA and trip ETA. D...

Machine Learning
8
0
84 people solved
Jan 14, 2026
Yelp logo
Yelp
Medium
Product Manager

Setting Yelp's ad load: trading ad revenue against user and advertiser experience

Yelp earns money by showing ads from local businesses next to its listings and reviews. As a product manager at Yelp, how would you work out the right...

Analytics & ExperimentationGrowth & MonetizationExperiment Design (A/B Testing)
1
0
11 people solved
May 2, 2026
xAI logo
xAI
Medium
Software Engineer Locked

Explain process vs thread and memory-sharing risks

This question evaluates a candidate's understanding of OS concurrency fundamentals, specifically the distinction between processes and threads, memory...

Software Engineering FundamentalsOperating SystemsConcurrency
12
0
142 people solved
Oct 27, 2025
Previous1...406407408...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