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
639
Companies
980
Updated
11.10.2026
639 Questions 980 Companies11.10.2026
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
Snowflake logo
Snowflake
Hard
Software Engineer

Design a concurrent web crawler

Web Crawler System Design (Onsite) Problem Design and implement a concurrent web crawler that: - Starts from a given URL. - Uses a provided interface ...

System DesignConcurrencyRate Limiting
38
0
269 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software Engineer

Solve two set and graph problems

Implement solutions for the following two data-structure / algorithm problems. --- Problem 1: Friend-purchase recommendations You are given three enti...

Coding & AlgorithmsGraphs
22
0
205 people solved
Oct 31, 2025
Google logo
Google
Medium
Software Engineer Locked

Find Earliest Fully Connected Time

This question evaluates a candidate's understanding of dynamic graph connectivity, time-ordered event processing, and state maintenance in graphs, inc...

Coding & AlgorithmsGraphs
38
2
525 people solved
Apr 5, 2026
Meta logo
Meta
Hard
Software Engineer

Check and infer custom alphabet

You are working with an unknown language that uses a custom alphabetical order, such as ['a', 'd', 'c', 'b', ...]. Implement the following: 1. Check s...

Coding & AlgorithmsGraphs
6
1
94 people solved
Feb 28, 2026
Cresta logo
Cresta
Medium
Software Engineer

Design sequence decoding with greedy and beam search

Design sequence decoding with greedy and beam search Next-Token Decoding: Greedy and Beam Search Context You are given a probabilistic next-token dict...

Machine LearningGreedyHeaps & Priority Queues
106
0
893 people solved
Aug 8, 2025
Snowflake logo
Snowflake
Medium
Software Engineer

Deep-Copy a Linked List Whose Nodes Also Carry a Random Pointer

Each node of a singly linked list has a value, a next pointer and a random pointer. The random pointer can point to any node of the list, including th...

Software Engineering FundamentalsLinked Lists
1
0
12 people solved
Apr 28, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Implement a same-host web crawler

Implement a web crawler. Given a start URL and a function get_links(url) -> list of URLs, return all URLs that share the same hostname as the start. A...

Coding & AlgorithmsGraphs
27
0
192 people solved
Aug 1, 2025
Airtable logo
Airtable
Hard
Software Engineer

Design JSON serialization for circular references

Design a JSON Serialization/Deserialization Strategy With Cycles and Determinism You are designing a JSON-based serializer/deserializer for a graph of...

System DesignParsing & InterpretersGraphs
37
0
415 people solved
Sep 6, 2025
Uber logo
Uber
Medium
Software Engineer

Compute build order from dependencies

Given a set of package build dependencies, output a valid build order so that each package is built only after all of its dependencies. The input is a...

Coding & AlgorithmsGraphs
13
0
103 people solved
Sep 6, 2025
Uber logo
Uber
Medium
Data Scientist

Design airport dispatch with ETA uncertainty

You control airport pickups with streaming ETAs for arriving flights and live driver locations/queues. Design an online dispatch algorithm that minimi...

Coding & AlgorithmsGeo & Delivery SystemsGraphs
18
0
127 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Child-Friendly Explanation of PageRank and Link-Based Web Page Ranking

Explain PageRank, the link-based method Google introduced for judging how important a web page is, in a way a five-year-old could follow. The explanat...

Software Engineering FundamentalsCommunication & StakeholdersSearch Relevance
0
0
8 people solved
Jan 5, 2026
LinkedIn logo
LinkedIn
Medium
Machine Learning Engineer

Find shortest word transformation with caching

Find shortest word transformation with caching You are given a start word and an end word of equal length, and a dictionary of valid words. In one mov...

Coding & AlgorithmsGraphsCaching
16
0
165 people solved
Jul 16, 2025
Nuro logo
Nuro
Hard
Backend Engineer

Implement BFS and a Job Scheduler

The interview report described two coding questions: grid reveal with BFS and a concurrent periodic job scheduler. Constraints & Assumptions - For the...

Coding & AlgorithmsGrids & MatricesConcurrency
14
0
142 people solved
Feb 4, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer

Solve six algorithmic problems

Answer the following independent algorithmic prompts. For each, explain your approach, justify data structures, analyze time/space complexity, and pro...

Coding & AlgorithmsTreesArrays & Strings
12
0
208 people solved
Sep 6, 2025
NVIDIA logo
NVIDIA
Medium
Software Engineer

Implement core graph algorithms for graphics

Implement core graph algorithms for graphics Given a scene or dependency graph, implement topological sort, BFS/DFS, and shortest path (Dijkstra). Dis...

Coding & AlgorithmsGraphs
12
0
115 people solved
Aug 9, 2025
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Find grid cell minimizing sum distances

You are given an m x n 2D grid with k marked points. Movement is allowed in four directions (up, down, left, right) with unit cost per step. Find a gr...

Coding & AlgorithmsGrids & Matrices
42
0
295 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Path-Planning Algorithm for a Wheeled Robot Crossing a Room Around Fixed Obstacles

Design an algorithm that gets a robot from a starting point A to a destination point B inside a room, and walk through it step by step. The setting: -...

Software Engineering FundamentalsGraphsGrids & Matrices
1
0
11 people solved
Nov 23, 2025
Uber logo
Uber
Medium
Machine Learning Engineer

Solve DFS grid and keypad problems

You may be asked to solve one or more DFS/backtracking problems: 1. Grid connectivity problem: Given an m x n grid where 1 represents land and 0 repre...

Coding & AlgorithmsGrids & MatricesBacktracking & Recursion
25
1
197 people solved
Mar 1, 2026
Google logo
Google
Medium
Software Engineer

Validate course catalog dependencies

Design a function to validate an e-learning course catalog. You are given: ( 1) a set of course IDs, and ( 2) a list of prerequisite pairs (u, v) mean...

Coding & AlgorithmsGraphs
8
0
128 people solved
Aug 1, 2025
Citadel logo
Citadel
Medium
Data Scientist

Speed Up a Slow Async Python DAG Runner by Merging Single-Parent Jobs

You are given a fairly large Python codebase that runs asynchronous tasks. The jobs and their dependencies form a directed acyclic graph (DAG): a job ...

Software Engineering FundamentalsDebuggingGraphs
0
0
9 people solved
Nov 3, 2025
Previous1...272829...32Next
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