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
  • Affiliate Program
  • 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
Microsoft logo
Microsoft
Hard
Machine Learning Engineer

Presenting a UX Proposal to an Engineering Team, and Defending an AI-Built Prototype

You are an engineer on a team made up of engineers plus one UI designer. In a project deep dive, the interviewer sets up a scenario: if you were asked...

Behavioral & LeadershipCommunication & StakeholdersProject Deep Dive
1
0
15 people solved
Oct 23, 2026
OpenAI logo
OpenAI
Hard
Machine Learning Engineer Locked

Compute Prefix Matrix Products

Practice cumulative left-to-right multiplication over a sequence of square matrices with exact ordered output.

Coding & Algorithms
75
2
592 people solved
Aug 23, 2026
Harvey logo
Harvey
Medium
Software Engineer Locked

Find Duplicate Files While Handling Symbolic-Link Cycles

Find duplicate files with cycle-safe directory traversal, explicit symlink policies, streamed hashes, exact byte checks, and changing-file handling.

Software Engineering FundamentalsOperating SystemsGraphs
28
0
224 people solved
Sep 1, 2026
Fireworks logo
Fireworks
Medium
Machine Learning Engineer Locked

Recommend Connections Through Mutual Friends and Evaluate the Ranking

Build mutual-friend connection recommendations, define bounded candidate scores, and distinguish affinity ranking from NDCG evaluation with independen...

ML System DesignRecommendation SystemsGraphs
13
1
181 people solved
Sep 11, 2026
Roblox logo
Roblox
Medium
Frontend Engineer Locked

Design a Notification UI with History and Live Updates

Design notification history and live delivery together, with server-side cursor pagination, read-state updates, initial-load synchronization, and reco...

System DesignState ManagementAPI Design
4
0
96 people solved
Sep 15, 2026
Affirm logo
Affirm
Medium
Data AnalystSenior+

Investigate a Quarterly Increase in Loan Delinquency

Investigate a Quarterly Increase in Loan Delinquency A lending business sees its delinquency rate rise in the past quarter. Explain how you would inve...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
16
0
115 people solved
Sep 27, 2026
Roblox logo
Roblox
Medium
Software Engineer

Search Autocomplete from a Timestamped Query Log, Ranked by Count with Tie-Breaks

You are building autocomplete for a search bar. You are given a log of past searches, each with the time it happened, and a list of autocomplete reque...

Coding & AlgorithmsSortingArrays & Strings
6
1
96 people solved
Aug 5, 2026
Amazon logo
Amazon
Medium
Software Engineer

Behavioral: Verifying AI Output, Team-Wide AI Wins, and Investigating AI Errors

The behavioral part of a software engineering phone screen focuses entirely on how you use AI tools in your work. Answer each of the three questions w...

Behavioral & LeadershipAI-Assisted Development
6
0
53 people solved
Oct 1, 2026
IBM logo
IBM
Easy
Software Engineer Locked

Find the Minimum Shared Increment on Nonadjacent Array Positions

Choose nonadjacent indices for one common nonnegative increment to make an array nondecreasing, or determine that no operation can succeed.

Coding & AlgorithmsArrays & Strings
31
1
224 people solved
Sep 15, 2026
Pinterest logo
Pinterest
Hard
Software Engineer Locked

Design a Merchant Catalog Update Pipeline with Bulk Files and Image Resizing

Design a system for merchants to update product price, stock status, descriptions, and images through single-item edits and whole-catalog bulk files, ...

System DesignSystem Design FundamentalsStorage & Sharding
7
0
106 people solved
Sep 2, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Aggregate Internal Services with Critical and Optional Dependencies

Build a backend endpoint that calls multiple internal services and aggregates their data into one response. Some dependencies are critical; if a noncr...

Software Engineering FundamentalsAPI Integration & HTTP ClientsConcurrency
0
0
9 people solved
Oct 23, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Compare Multithreading and Multiprocessing

Compare multithreading with multiprocessing and explain when each execution model is appropriate.

Software Engineering Fundamentals
11
0
102 people solved
Aug 30, 2026
Autodesk logo
Autodesk
Medium
Software Engineer

Design a Real-Time Multi-Source Change Data Pipeline

Design a real-time data-processing system that consumes changes from operational databases, combines data from multiple sources, and maintains a query...

System DesignData Ingestion & CDCBatch & Stream Processing
8
0
85 people solved
Oct 4, 2026
Capital One logo
Capital One
Hard
Software Engineer

Sum of Distinct Values on the Borders of All Maximum-Sum Square Frames

You are given a rectangular matrix of integers and an integer frame_size. A frame is any square submatrix made of frame_size consecutive rows and fram...

Coding & AlgorithmsGrids & Matrices
5
0
101 people solved
Sep 10, 2026
Stripe logo
Stripe
Medium
Product Manager

System Design: An E-Signature Service Like DocuSign With Tamper-Evident Audit Trails

Design a service like DocuSign that lets people send documents to others for electronic signature and sign them online. `hint Proof outlives the signa...

System DesignTechnical Tradeoffs for PMsSystem Design Fundamentals
3
0
32 people solved
Sep 15, 2026
Snowflake logo
Snowflake
Easy
Software Engineer

Design a URL Shortener That Gives Each Long URL Exactly One Short URL

Design a URL shortener in the style of TinyURL. A user submits a long URL and gets back a short URL; anyone who opens the short URL is redirected to t...

System DesignSystem Design FundamentalsStorage & Sharding
1
0
11 people solved
Oct 21, 2026
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, TCS, Meta, Bloomberg, Apple, JPMorgan Chase, Infosys, Oracle, EPAM Systems, TikTok

Medium
Software Engineer

Return the Unique Sorted Target Pair as One-Based Indices

Problem In a nondecreasing sorted array, find the unique pair of different positions whose values sum to target. Return the two one-based indices in i...

Coding & AlgorithmsTwo Pointers & Sliding Window
4
0
24 people solved
DoorDash logo
DoorDash
Medium
Software Engineer

Revisit a Past Project from a Product Perspective

If you could redo a past project from a product perspective, what would you change and why? Explain the user problem, the original choice, and the evi...

Behavioral & LeadershipProduct Design & ImprovementProject Deep Dive
1
0
14 people solved
Oct 24, 2026
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Design Monitoring and Reliability for 99.99% Availability

Design golden-signal monitoring and reliability controls for 99.99% availability, with indicators, error budgets, dependency analysis, and recovery te...

System DesignReliability & SREObservability
18
0
220 people solved
Sep 4, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Diagnose I/O, Memory, and CPU Constraints

Describe concrete I/O-, memory-, and CPU-bound situations, including the measurements, changes, correctness checks, and outcomes for each bottleneck.

Software Engineering Fundamentals
13
0
109 people solved
Aug 30, 2026
Previous1...515253...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