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
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Implement type AST and infer generics

This question evaluates a candidate's ability to design an abstract syntax tree representation and implement generic type inference for a small langua...

Coding & AlgorithmsParsing & Interpreters
32
2
443 people solved
Feb 11, 2026
Deshaw logo
Deshaw
Hard
Software Engineer

Explain and Compare SGD and Adam

Explain and Compare SGD and Adam Explain how stochastic gradient descent updates model parameters and how Adam modifies those updates using moving est...

Machine Learning
2
0
40 people solved
Apr 20, 2026
Amazon logo
Amazon
Medium
Machine Learning Engineer

Implement Multi-Head Attention with a KV Cache and Cached Grouped-Query Attention

Implement the attention layer of a decoder-only transformer from scratch, in three steps that build on each other: standard multi-head attention, a ke...

Machine LearningTransformers & AttentionML Coding
2
0
25 people solved
Jan 3, 2026
Chalk logo
Chalk
Hard
Software Engineer

Implement Python feature and resolver metaprogramming

You are given a skeleton for a small Python "feature" framework. The goal is to use metaprogramming to: 1. Parse type-annotated classes into Feature o...

Coding & AlgorithmsProgramming Languages
108
0
791 people solved
Sep 27, 2025
Snowflake logo
Snowflake
Medium
Frontend Engineer Locked

Design Calendar Frontend State for Recurring Events

Design frontend state and APIs for a calendar with bounded views, recurring series, and single-occurrence rescheduling. Separate normalized server dat...

System Design
7
0
85 people solved
Aug 3, 2026
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Count the Ways to Split a Digit String into Primes

This question evaluates dynamic programming combined with number theory, specifically counting valid partitions of a digit string under a primality co...

Coding & Algorithms
6
0
44 people solved
Jun 30, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Implement a GPU credit manager

Implement a GPU credit manager for a compute cluster. Each user has a nonnegative credit balance that can be increased (grantCredits(user, amount)), c...

Coding & AlgorithmsData Structure DesignGPU Infrastructure
33
0
411 people solved
Aug 8, 2025
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Build a File-Driven Data Visualization and Replay UI

Build a small web app that loads a data file and visualizes its contents. Include controls to replay the visible data over time. Constraints & Assumpt...

Software Engineering FundamentalsReact & UI FrameworksParsing & Interpreters
1
0
18 people solved
Jun 17, 2026
Optiver logo
Optiver
Medium
Software EngineerIntern

Implement a News Publishing System with Topic Subscriptions and Delivery Limits

You are building the core delivery engine for a news publishing service. The service continuously receives news items, stores them, and — whenever a p...

Coding & AlgorithmsData Structure DesignStacks & Queues
12
2
180 people solved
Nov 25, 2025
Datologyai logo
Datologyai
Easy
Software Engineer

Text Editor with a Cursor: Typing, Backspace, and Four-Way Cursor Movement

Implement a TextEditor class that holds one document and a cursor. The cursor sits between two characters, or at the start or end of the text, and eve...

Software Engineering FundamentalsData Structure DesignStacks & Queues
1
0
20 people solved
Jan 1, 2026
Figma logo
Figma
Medium
Data Engineer

Validate an IPv4 address string

Given a string s, determine whether it is a valid IPv4 address. A valid IPv4 address: - Has exactly 4 parts separated by dots (.): x1.x2.x3.x4 - Each ...

Coding & AlgorithmsArrays & Strings
18
0
215 people solved
Jan 20, 2026
Waymo logo
Waymo
Easy
Data Scientist Locked

Use Bayes to interpret a broken radar alarm

This question evaluates Bayesian probabilistic reasoning, understanding of base rates, sensitivity/specificity, decision-theoretic trade-offs between ...

Analytics & ExperimentationProbabilityHypothesis Testing
23
0
315 people solved
Jan 17, 2026
Applied Intuition logo
Applied Intuition
Easy
Software Engineer

Find intersection of two line segments

Problem Given two 2D line segments AB and CD, determine whether they intersect. Each segment is defined by its endpoints: - A(x1, y1), B(x2, y2) - C(x...

Coding & Algorithms
6
0
91 people solved
Feb 12, 2026
Datadog logo
Datadog
Medium
Software Engineer Locked

Build span trees from unordered trace spans

This question evaluates skill in reconstructing hierarchical relationships from unordered span records, testing understanding of tree structure assemb...

Coding & AlgorithmsTrees
32
0
251 people solved
Feb 12, 2026
Robinhood logo
Robinhood
Hard
Software Engineer

Explain Project Complexity and Scalability in a Deep Dive

Walk through a project you built and explain its technical complexity and scalability. Use a design diagram to make the important decisions and busine...

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
3
0
37 people solved
Apr 14, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Answer culture-fit reflection questions

This question evaluates intrinsic motivation and accountability, probing sustained self-driven curiosity and the ability to recognize and own mistakes...

Behavioral & LeadershipConflict & CollaborationFailure & Learning
74
0
532 people solved
May 11, 2026
C3 AI logo
C3 AI
Hard
Data Scientist Locked

Compare Transformers and RNNs and Derive Attention Complexity

Compare Transformers and RNNs while deriving dense self-attention complexity. Separate projection and score costs, training parallelism, generation ca...

Machine Learning
3
0
27 people solved
Aug 21, 2026
Brex logo
Brex
Medium
Software Engineer

Build a React color multi-select dropdown UI

Implement a React UI that lets users multi-select colors from a dropdown and view details. You are given a JavaScript object where each key is a color...

Software Engineering FundamentalsReact & UI FrameworksState Management
7
0
126 people solved
Feb 10, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Architect an AI Chatbot for Enterprise Users

Prepare for a Amazon system design interview about architect an ai chatbot for enterprise users. This question focuses on requirements, architecture, ...

System DesignLLM ApplicationsAI Safety & Alignment
17
0
164 people solved
Jul 1, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Debug a driver assignment bug

Given a service that selects the best delivery driver ("dasher") for an order, users report incorrect assignments. With a provided codebase and failin...

Coding & AlgorithmsDebuggingTesting & Quality
53
0
412 people solved
Aug 13, 2025
Previous1...181182183...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