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

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
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Write SQL for top spender and non-spenders

This question evaluates SQL querying skills including aggregation and grouping, date/time windowing for previous-calendar-month calculations, joins an...

Software Engineering FundamentalsSQL
9
0
81 people solved
Jan 22, 2026
Citadel logo
Citadel
Hard
Data Scientist

Diagnose outliers and influence in linear regression

OLS Diagnostics: Outliers, Leverage, Influence, and Cook's Distance Context You are fitting an ordinary least squares (OLS) linear regression with an ...

Machine LearningRegression & Statistical ModelingModel Evaluation
10
0
172 people solved
Oct 13, 2025
Google logo
Google
Hard
Software Engineer

Find secret word with match-count feedback

Problem You are given a list of unique lowercase words, all of the same length (e.g., length = 6). One of these words is a secret word. You can intera...

Coding & Algorithms
22
0
228 people solved
Feb 11, 2026
Google logo
Google
Medium
Software Engineer Locked

Find where to cut cake into equal areas

This question evaluates geometric area computation, handling of piecewise-constant profiles formed by adjacent rectangles, and attention to numerical ...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
13
0
120 people solved
Jan 6, 2026
Affirm logo
Affirm
Easy
Software Engineer

Implement an LRU cache

Problem Design and implement an LRU (Least Recently Used) cache that supports the following operations in average O(1) time: - get(key) -> value: Retu...

Coding & AlgorithmsData Structure Design
15
0
128 people solved
Nov 6, 2025
Snowflake logo
Snowflake
Medium
Software Engineer

Compute height after deletions; enumerate valid delete sets

Warm-up: You are given a rooted binary tree with unique node ids and a list of ids to delete. When a node is deleted, promote all of its children to b...

Coding & AlgorithmsTreesBacktracking & Recursion
22
0
160 people solved
Sep 6, 2025
TikTok logo
TikTok
Easy
Data Scientist

Design multimodal deployment under compute limits

You need to answer a set of questions related to multimodal model deployment and post-training optimization in an interview. Provide systematic explan...

Machine LearningMLOps & Model ServingFine-Tuning & Alignment Techniques
23
0
212 people solved
Feb 17, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Handle a Conflict with a Colleague or Manager

Explain a conflict with a colleague or manager through the decision involved, what each person was optimizing, how evidence or authority resolved it, ...

Behavioral & Leadership
2
0
18 people solved
Aug 11, 2026
Amazon logo
Amazon
Medium
Software Engineer

Compute grid shortest path with obstacles

You are given an m x n grid of integers where cells with value -1 represent obstacles and all other cells are traversable. Starting at (0, 0) and targ...

Coding & Algorithms
9
0
69 people solved
Sep 6, 2025
Chime logo
Chime
Medium
Data Scientist

Propose Innovative Ideas and Convince Others Effectively

Propose Innovative Ideas and Convince Others Effectively Behavioral Interview Prompts (Data Scientist, Phone Screen) Context You are interviewing for ...

Behavioral & LeadershipLeadership & InfluenceAmbiguity & Decision Making
79
0
406 people solved
Aug 4, 2025
Google logo
Google
Hard
Data Scientist Locked

Design a Causal Upgrade Experiment

This question evaluates competency in causal inference and experimental design, focusing on handling selection bias, defining intent-to-treat and trea...

Analytics & ExperimentationCausal InferenceExperiment Design (A/B Testing)
20
0
139 people solved
Dec 3, 2025
Shopify logo
Shopify
Hard
Machine Learning Engineer

Design a baseline loan recommendation system

System Design: Baseline Loan Recommendation System Context Design a baseline system that recommends loan offers to users on a digital platform. The sy...

ML System DesignFairness & BiasRecommendation Systems
18
0
248 people solved
Sep 6, 2025
Waymo logo
Waymo
Medium
Machine Learning Engineer

Explain Model Compression Techniques

Explain quantization-aware training, knowledge distillation, evaluation mode in deep learning frameworks, and contrastive learning. For each topic, de...

Machine LearningNeural Networks & Training
7
0
128 people solved
Nov 27, 2025
Databricks logo
Databricks
Hard
Software Engineer

How do you handle conflicting interviewer hints?

In a technical interview, you are solving a problem and have a clear approach in mind. The interviewer offers a hint that appears to push you toward a...

Behavioral & LeadershipAmbiguity & Decision MakingCommunication & Stakeholders
10
0
155 people solved
Nov 6, 2025
Amazon logo
Amazon
Hard
Data Scientist

Compare Tableau live vs extract and filters

Scenario You are building an interactive dashboard over a 100M-row fact table. Compare Tableau connection options and performance behaviors for this s...

Analytics & ExperimentationBI & Reporting SystemsIndexing & Query Performance
8
0
92 people solved
Oct 13, 2025
Capital One logo
Capital One
Hard
Data Scientist

Choose cashback segment and model post-launch impact

Credit-Card Cashback Launch: Segment Prioritization and Measurement Plan Context You are evaluating which customer segment to launch a new cashback fe...

Analytics & Experimentation
7
0
80 people solved
Oct 13, 2025
Apple logo
Apple
Medium
Software Engineer

Design a deck of cards with shuffle/draw

Object-Oriented Design + Randomness: A Deck of Cards Design an in-memory model of a standard 52-card playing deck. Your design will be exercised by cl...

Software Engineering FundamentalsLow-Level Design (OOP)Probability
56
0
419 people solved
Mar 1, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design a GPT chat UI with snapshots and sharing

System Design: End-to-End Web App for Interacting with a GPT-like Model Context You are designing a multi-tenant, browser-based SaaS application that ...

System DesignReal-Time SystemsLLM Applications
20
0
243 people solved
Sep 6, 2025
Harvey logo
Harvey
Medium
Backend Engineer

Resolve conflict across teams

Describe a time when you had to coordinate between two teams that were in conflict or seriously misaligned. What caused the disagreement, how did you ...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
18
0
143 people solved
Feb 18, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Design consistent hashing with a sorted map

Design consistent hashing with a sorted map Consistent Hashing with a Sorted Map (Virtual Nodes) Context You are building a client-side library to map...

System DesignPartitioning & Consistent Hashing
23
0
222 people solved
Aug 7, 2025
Previous1...328329330...610Next
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