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
Meta logo
Meta
Medium
Software Engineer

Design ticketing and coding practice platforms

You are asked two separate system design questions. --- 1. Design an online event ticketing platform (like Ticketmaster) Design a large-scale web serv...

System Design
4
0
61 people solved
Oct 18, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Check if adding edge creates cycle in digraph

You work with a system that stores items and directed relationships between them (for example, item A points to item B). The relationships form a dire...

Coding & Algorithms
11
0
91 people solved
Oct 26, 2025
Perplexity logo
Perplexity
Hard
Software Engineer

Implement resilient LLM provider pool

System Design Task: Resilient Multi‑Provider LLM Client Library Context You are designing a client library used by backend services to call external L...

ML System DesignLLM ApplicationsAPI Integration & HTTP Clients
16
0
264 people solved
Aug 13, 2025
Klaviyo logo
Klaviyo
Hard
Software Engineer

Design banking with scheduled transfers and merges

Design banking with scheduled transfers and merges In-Memory Banking System with Scheduled Payments and Account Merges Design and implement a single-t...

System DesignData Structure DesignSimulation & State Machines
23
0
167 people solved
Jul 15, 2025
Meta logo
Meta
Medium
Software Engineer

Design an Expected O(1) Randomized Container

Design an Expected O(1) Randomized Container Design a generic container that stores distinct elements and supports: - insert(element) -> bool: add an ...

Software Engineering Fundamentals
1
0
25 people solved
Mar 2, 2026
Meta logo
Meta
Medium
Software Engineer

Reverse sublist between equal-value nodes

Given the head of a singly linked list and a target value v that appears at least twice, reverse the sublist starting at the first node with value v a...

Coding & Algorithms
6
0
57 people solved
Sep 6, 2025
Rbcroyalbank logo
Rbcroyalbank
Easy
Data EngineerSenior+

Differentiate pandas objects and SQL filters

Python (pandas) 1. What is the difference between a pandas Series and a pandas DataFrame? - Discuss structure (1D vs 2D), indexing, column labels, ...

Data Manipulation (SQL/Python)SQLPandas & Python Data
4
1
68 people solved
Feb 8, 2026
Google logo
Google
Medium
Software Engineer

Implement Trie Insert and Exact-Word Search

Problem Implement a trie that supports insert(word) and search(word). Insert adds a lowercase word. Search returns true only when the complete word wa...

Coding & Algorithms
6
0
53 people solved
Feb 20, 2026
Uber logo
Uber
Hard
Software Engineer

Find cheapest flight with at most K stops

Problem You are given a directed weighted graph representing flights between cities. Inputs - An integer n: number of cities, labeled 0..n-1. - A list...

Coding & AlgorithmsGraphs
10
0
100 people solved
Dec 25, 2025
Adobe logo
Adobe
Medium
Product Manager

Count Your Product Launches and Break Down the Hardest One You Ran

You are interviewing for a product manager role at Adobe. The interviewer asks two linked questions: roughly how many product launches have you suppor...

Behavioral & LeadershipProject Deep DiveRequirements & Launch Execution
1
0
16 people solved
May 23, 2025
Airbnb logo
Airbnb
Hard
Software Engineer

Flatten a Nested Integer List

Flatten a Nested Integer List A nested list contains either integers or other nested lists, to arbitrary depth. Return all integers in left-to-right o...

Coding & Algorithms
11
0
91 people solved
Apr 21, 2026
Boston Consulting Group logo
Boston Consulting Group
Medium
Data Scientist

Build and evaluate imbalanced binary classifier

Take‑home: Imbalanced Binary Classification with Temporal Split, Calibration, and Operating Point Selection Context You are given an event‑level datas...

Machine LearningSupervised LearningModel Evaluation
6
0
133 people solved
Oct 13, 2025
Capital One logo
Capital One
Hard
Data Scientist

Identify and mitigate risks to break-even

Break-even Risk Assessment for the RH Partnership Offer Context You are evaluating a break-even (BE) analysis for a partnership offer with RH (e.g., a...

Analytics & Experimentation
8
0
96 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Design comment ranking for a news feed

This question evaluates a candidate's ability to design an ML-powered comment-ranking system, testing competencies in personalization, engagement and ...

ML System DesignRanking ModelsPersonalization
8
0
118 people solved
Dec 15, 2025
Amazon logo
Amazon
Medium
Data Scientist

Analyze Top 10 Items' Revenue Contribution by Category

sales +----------+------------+---------+---------+------------+ | order_id | category | item_id | revenue | order_date | +----------+------------+-...

Data Manipulation (SQL/Python)
69
0
255 people solved
Aug 4, 2025
The Trade Desk logo
The Trade Desk
Easy
Data ScientistIntern

Answer common DS behavioral screen questions

You are interviewing for a Data Science internship. Answer the following behavioral questions. 1. Introduce yourself (30–60 seconds). 2. Project deep ...

Behavioral & LeadershipProject Deep DiveModel Evaluation
6
0
112 people solved
Oct 18, 2025
HubSpot logo
HubSpot
Medium
Software Engineer

Implement account CRUD and transfer

Implement account CRUD and transfer Design and Implement Money Movement APIs Context You are building a small money-movement service for a single curr...

Coding & AlgorithmsPayments & LedgersTransactions & Isolation
11
0
129 people solved
Aug 4, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Uber Monthly Active User Decline: Root Causes, Response and Early-Warning Signals

Uber's monthly active users (MAU) fell in August, a few months ago. Work out why the decline might have happened, explain what you would do about it, ...

Analytics & ExperimentationMetric DiagnosticsData Quality & Validation
1
0
16 people solved
Sep 21, 2025
Conde Nast logo
Conde Nast
Medium
Product Manager

Video Streaming Ads: Monetization Models and the Ad Insertion Pipeline

In a product manager interview, you are asked how advertising makes money for a video streaming service. Explain where ads fit among the ways a stream...

System DesignGrowth & MonetizationAds Systems
1
0
11 people solved
Jul 5, 2025
Dropbox logo
Dropbox
Medium
Product Manager

Fleet Sizing: Autonomous Cars Needed to Re-Image All Continental U.S. Roads in One Year

You are a product manager on Google Maps. The team wants to refresh Street View imagery across the entire continental United States using self-driving...

Product / Decision MakingOperations & CapacityEstimation & Market Sizing
0
0
9 people solved
Oct 28, 2025
Previous1...572573574...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