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
Anthropic logo
Anthropic
Medium
Software Engineer

Design One-to-One Chat

Design a scalable one-to-one chat system. Scope: - Only direct one-to-one messaging is required. - Group chat, public channels, workspace features, an...

System DesignReal-Time SystemsMessaging & Event-Driven
64
1
583 people solved
Mar 2, 2026
Pinterest logo
Pinterest
Medium
Data ScientistSenior+ Locked

Implement Bootstrap and Jackknife Estimates on a DataFrame

Implement bootstrap and jackknife uncertainty estimates for a statistic computed from a pandas DataFrame. Learn correct positional resampling, confide...

Statistics & MathSampling & EstimationPandas & Python Data
16
2
159 people solved
Jun 14, 2026
Google logo
Google
Medium
Software Engineer Locked

Find A Threshold-Limited Path With Minimum Required Safety

Practice a graph path interview problem that asks for the minimum required safety value along a threshold-limited path. The prompt targets minimax pat...

Coding & AlgorithmsGraphs
27
5
179 people solved
Jul 6, 2026
Notion logo
Notion
Medium
Software Engineer Locked

Design a Todo List Object Model

This question evaluates object-oriented design and API modeling skills, focusing on domain modeling, class responsibilities, encapsulation, and design...

Software Engineering FundamentalsLow-Level Design (OOP)Code Quality & Maintainability
54
0
742 people solved
Jun 1, 2026
Capital One logo
Capital One
Hard
Software Engineer

Solve multiple algorithmic interview questions

Below are several independent coding tasks. For each task, implement a function that returns the required output. Assume: - Arrays/lists are 0-indexed...

Coding & AlgorithmsArrays & Strings
24
0
421 people solved
Feb 12, 2026
Waymo logo
Waymo
Medium
Software Engineer Locked

Parse a Raw CSV String Into a Structure for Downstream Teams, Handling Corrupted Rows

Parse a raw CSV string from scratch into a data structure other engineering teams can consume, with the prompt given verbally and only one sample reco...

Software Engineering FundamentalsParsing & InterpretersData Cleaning & Wrangling
4
0
72 people solved
Sep 10, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Build and Debug a Dasher-to-Order Assignment Service, Then Prepare It for Production

This onsite round is billed as debugging, but most of it is building. You receive starter code for a service that assigns dashers (delivery drivers) t...

Software Engineering FundamentalsData Structure DesignDebugging
4
0
39 people solved
May 14, 2026
New Relic logo
New Relic
Medium
Backend Engineer

Compress a String by Run-Length Counts, Keeping the Original When Not Shorter

Implement basic string compression based on runs of repeated characters. Replace every maximal run of consecutive identical characters with that chara...

Coding & AlgorithmsArrays & Strings
2
0
21 people solved
Sep 23, 2026
Nubank logo
Nubank
Easy
Software Engineer Locked

Design a chargeback ingestion and export system

This question evaluates system design skills around reliable ingestion and scheduled export of financial transaction records, specifically testing com...

System DesignPayments & LedgersDistributed Transactions & Idempotency
33
0
260 people solved
Jun 4, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Zoho, Microsoft, Apple, Oracle, Josh Technology

Easy
Software Engineer

Measure the Boundary of One Island

Measure the Boundary of One Island A rectangular binary grid describes a map: 1 is land and 0 is water. Land cells connect through horizontal or verti...

Coding & AlgorithmsGrids & Matrices
0
0
8 people solved
Capital One logo
Capital OneeBayGoogle

Also asked at Google, Microsoft, Bloomberg

Medium
Software Engineer

Count Alternating Groups around a Circle

Problem The array colors describes tiles arranged in a circle: 0 denotes a red tile and 1 denotes a blue tile. You are also given an integer k. A grou...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
15 people solved
Waymo logo
Waymo
Medium
Software Engineer Locked

Design a Shared-Ride Matching and Trip Service

Design a shared-ride platform with geospatial candidate generation, route-insertion scoring, atomic seat and driver reservation, ordered trip states, ...

System Design
7
0
54 people solved
Aug 6, 2026
Databricks logo
Databricks
Medium
Software EngineerSenior+

Find optimal commute mode in a city graph

You are designing a route planner that suggests the best way to commute between two points in a city using different transportation modes. The city is...

Coding & AlgorithmsGraphs
56
0
523 people solved
Oct 19, 2025
Bank of America logo
Bank of America
Easy
Software EngineerIntern Locked

Return Cash-Register Change in Named Denominations

Compute cash-register change from exact decimal price and payment strings using the supplied named coin and bill denominations. Return the required er...

Coding & Algorithms
17
0
119 people solved
Jun 13, 2026
Google logo
GoogleRocketLaneMeta

Also asked at Meta, Microsoft, Amazon, Oracle, Rippling, ServiceNow, Expedia, Waymo, LinkedIn, NVIDIA

Hard
Software Engineer

Count Visible People to the Right

Problem People stand from left to right with distinct heights given by heights. Person i can see person j to the right when every person strictly betw...

Coding & AlgorithmsStacks & Queues
2
0
16 people solved
Databricks logo
Databricks
Medium
Software Engineer Locked

Implement Fixed-Window Get and Put QPS Tracking

Design a key-value service with put, get, and load-reporting APIs. Make the API or object boundaries explicit, then cover invariants, edge cases, test...

Software Engineering Fundamentals
4
0
82 people solved
Jun 21, 2026
Amazon logo
Amazon
Medium
Product Manager

Amazon PM Behavioral: Invent and Simplify Story of Reducing a Complex Problem

In a product manager behavioral interview at Amazon, you are asked to describe a time you faced a complicated problem and solved it with a simple solu...

Behavioral & LeadershipInnovation & Simplification
1
0
13 people solved
Jul 14, 2026
Rippling logo
Rippling
Medium
Software Engineer

Design a delivery cost system

Question Design an object-oriented, in-memory delivery cost dashboard for a food-delivery company. Drivers register with an hourly rate, completed del...

System DesignData Structure DesignIntervals & Scheduling
247
1
2283 people solved
Jul 31, 2025
Engelhart logo
Engelhart
Medium
Software Engineer

Python Virtual Environments, Conda and Poetry, and Everyday Linux Commands

Explain what Python virtual environments are and why you need them, where tools such as Conda and Poetry fit in, and how you work on Linux day to day....

Software Engineering FundamentalsProgramming Languages
0
0
7 people solved
Sep 19, 2026
Houzz logo
Houzz
Medium
Software Engineer Locked

Convert a Column Number to an Excel-Style Label

Convert one-based spreadsheet columns into A-through-Z and AA-through-ZZ labels, with correct handling of multiples of 26.

Coding & AlgorithmsMath & Number Theory
4
0
45 people solved
Sep 18, 2026
Previous1...164165166...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