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
DoorDash logo
DoorDash
Medium
Product Manager

Choose and Redesign the Most Painful Moment in a Ticketmaster Fan's Journey

Think about everything a fan does with Ticketmaster, from buying tickets for a live event to using them. Which part of that experience is the worst, a...

Product Design & StrategyProduct Design & Improvement
0
0
8 people solved
Sep 30, 2025
TikTok logo
TikTok
Easy
Software EngineerIntern Locked

Give a Technical Research-Project Deep Dive

Present a research project through its question, personal contribution, experimental design, evaluation evidence, limitations, and next decisive exper...

Behavioral & LeadershipProject Deep Dive
6
0
44 people solved
Sep 5, 2026
PayPal logo
PayPal
Hard
Data Scientist

Compute Variance from a Python List

Given a Python list of numeric values, write a function to compute the variance without using external libraries such as NumPy or pandas. Clarify any ...

Coding & AlgorithmsProbability
13
0
113 people solved
Oct 29, 2025
Meta logo
Meta
Medium
Data Engineer

Demonstrate behavioral competencies

Demonstrate behavioral competencies Behavioral Interview Prompt: Prepare STAR Stories Context You are preparing for an onsite Behavioral & Leadership ...

Behavioral & Leadership
5
0
55 people solved
Aug 4, 2025
DoorDash logo
DoorDash
Hard
Machine Learning Engineer

Discuss ML infrastructure fundamentals

Discuss ML infrastructure fundamentals ML System Design: Infra Stack, Feature Store, Reproducibility, and Monitoring Context: You are designing and op...

ML System DesignML Data Pipelines & Feature StoresMLOps & Model Serving
27
0
209 people solved
Jul 29, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Reinventing the classic globe: users, pain points, features and success metrics

You are a product manager at Microsoft, and the interviewer's prompt is short: design a globe. Nothing else is specified, so deciding what kind of glo...

Product Design & StrategyProduct SenseMetrics & KPIs
2
0
15 people solved
Dec 29, 2025
Databricks logo
Databricks
Medium
Product Manager

PM behavioral: walk through a hard technical problem you helped solve

Walk the interviewer through a difficult technical problem you faced and how you got it solved. `hint Make your part visible Pick a problem whose tech...

Behavioral & LeadershipProject Deep DiveTechnical Tradeoffs for PMs
1
0
15 people solved
Jan 1, 2024
Instacart logo
Instacart
Medium
Product Manager

Instacart home screen redesign: pick a customer segment and prioritize improvements

You are interviewing for a product manager role at Instacart. How would you make the home screen of the Instacart app better? Decide who you are impro...

Product Design & StrategyProduct Design & ImprovementExperiment Design (A/B Testing)
0
0
9 people solved
Sep 14, 2025
PayPal logo
PayPal
Medium
Data Scientist

Identify Users with Specific Page Navigation Patterns

page_visits +------------+---------+---------+---------------------+ | visit_date | user_id | page_id | ts | +------------+---------+...

Data Manipulation (SQL/Python)
2
0
37 people solved
Aug 4, 2025
Perplexity logo
Perplexity
Medium
Product Manager

Perplexity Product Sense: Choose a User Segment and Pitch the Next Feature to Build

You are interviewing for a product manager role at Perplexity, the AI answer engine. Pitch one feature Perplexity does not offer today and argue why i...

Product Design & StrategyProduct Design & ImprovementAI Product Management
0
0
6 people solved
May 7, 2026
TikTok logo
TikTok
Medium
Software Engineer Locked

Explain how Kafka works

This question evaluates understanding of Kafka and distributed streaming system concepts, covering core entities (broker, topic, partition, producer, ...

Software Engineering Fundamentals
8
0
66 people solved
Jan 22, 2026
Citadel logo
Citadel
Medium
Data Scientist

Derive distribution of an inverse transform

Change of Variables via the Logistic Map You are given a random variable X with density f_X supported on (0, 1). Define the strictly increasing logist...

Statistics & Math
4
0
81 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Software Engineer

Find Earliest Full Connectivity Timestamp

You are given: - A list of all user IDs in a ride-sharing system. - A chronological text log of ride-sharing events. Each relevant event contains a ti...

Coding & Algorithms
2
0
28 people solved
Apr 26, 2026
Meta logo
Meta
Hard
Data Scientist

Design cluster-randomized test under network effects

A/B Test Design for a New Group Call Feature with Network Effects You are designing an experiment for a Group Call feature where social network effect...

Analytics & Experimentation
10
0
73 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Design a donation service for a 3‑day charity

This question evaluates a candidate's system design skills around building a reliable, scalable online donation service, emphasizing competencies in p...

System DesignPayments & LedgersDistributed Transactions & Idempotency
24
0
391 people solved
Jan 18, 2026
Meta logo
Meta
Medium
Software Engineer

Design keyword search for social posts

Design a Facebook-like post search feature: - Input: one or more keywords. - Output: all (or top-K) posts that contain the keyword(s). - Assume posts ...

System Design
6
0
47 people solved
Oct 2, 2025
Disney logo
Disney
Medium
Software Engineer

Solve grid shortest path with BFS

Given a 2D grid containing 0s (open cells) and 1s (walls), and coordinates for a start (sr, sc) and a target (tr, tc), return the length of the shorte...

Coding & Algorithms
10
0
100 people solved
Sep 6, 2025
Capital One logo
Capital One
Medium
Product Manager

First-Year P&L Measurement for a Newly Launched Capital One Product

You are a product manager at Capital One, and a new product has just launched. How would you measure whether it makes or loses money over its first tw...

Analytics & ExperimentationBusiness Case AnalysisCausal Inference
1
0
9 people solved
May 8, 2025
Meta logo
Meta
Hard
Data Scientist

Compute Heavy-Caller Percentages

You are given two tables that track voice calls and daily active users for a messaging app. Table: call_events - call_id BIGINT — unique call identifi...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
10
1
83 people solved
Jan 2, 2026
Google logo
Google
Medium
Product Manager

Google Search Success Metrics: North-Star, Supporting Signals and Guardrails

Explain how you would judge whether Google Search is succeeding. Define what success means for the product, propose the primary metric you would use, ...

Analytics & ExperimentationMetrics & KPIs
0
0
7 people solved
Dec 24, 2025
Previous1...586587588...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