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
LinkedIn logo
LinkedIn
Medium
Data Scientist

Identify Top Contributors by Recent Post Count

posts +----+---------+---------------------+ | id | user_id | created_at | +----+---------+---------------------+ | 1 | 101 | 2023-09-01...

Data Manipulation (SQL/Python)
66
0
62 people solved
Jul 12, 2025
Notion logo
Notion
Medium
Product Manager

Behavioral: Resolving a Cross-Team Conflict and Getting Both Sides to Commit

Describe a situation where teams you depended on were at odds with each other, and walk through how you got them working toward the same outcome. `hin...

Behavioral & LeadershipConflict & CollaborationLeadership & Influence
0
0
8 people solved
Aug 3, 2025
Nextdoor logo
Nextdoor
Medium
Software Engineer Locked

Design a Job Scheduler That Can Scale by 100 Times

Design a job scheduler that initially serves a small workload but must later handle 100 times as many jobs. Connect requirements and APIs to data mode...

System Design
12
0
99 people solved
Aug 3, 2026
LinkedIn logo
LinkedIn
Easy
Data Scientist Locked

Choose better bank queue and describe distributions

This question evaluates probabilistic reasoning and statistical intuition—queueing theory for expected waiting time and variability plus distributiona...

Statistics & MathProbability
5
0
77 people solved
Feb 11, 2026
Hebbia logo
Hebbia
Medium
Software Engineer

Implement a Cache Snapshot Printer

Implement an LRU-style cache and a snapshot-printing feature. The cache stores key-value pairs and has a fixed capacity. It should support normal cach...

Coding & Algorithms
5
0
59 people solved
Feb 6, 2026
Palantir logo
Palantir
Easy
Software Engineer

Merge Intervals With Decimal Endpoints and List the Gaps Between Them

You are given a list of closed intervals on the number line. Endpoints are not limited to integers: they may also be decimal numbers. First merge ever...

Coding & AlgorithmsIntervals & Scheduling
12
0
86 people solved
Oct 12, 2023
Apple logo
Apple
Medium
Software Engineer Locked

Convert a Roman Numeral to an Integer

This question evaluates a candidate's ability to parse string input and apply conditional arithmetic logic to convert Roman numerals into integers. It...

Coding & Algorithms
6
0
81 people solved
Jun 30, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Describe model-to-GPU execution pipeline

Describe model-to-GPU execution pipeline From Model Definition to GPU Execution: Pipeline and Optimizations You are asked to explain the end-to-end pa...

ML System DesignGPU Programming
10
0
141 people solved
Jul 31, 2025
Airtable logo
Airtable
Medium
Software Engineer Locked

Implement undo/redo with two stacks

This question evaluates a candidate's ability to design and implement efficient mutable state management and history tracking using data structures (s...

Coding & AlgorithmsData Structure DesignStacks & Queues
13
0
258 people solved
Jan 22, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Explain Why You Are Considering a Job Change

Shape a concise, truthful answer to why you are considering a job change. Connect a durable motivation and one concrete fact from your current experie...

Behavioral & Leadership
2
0
36 people solved
May 29, 2026
Google logo
Google
Medium
Data Scientist

Explain and resolve Simpson’s paradox

Define Simpson’s paradox and construct a concrete numeric example where group-wise success rates favor treatment in each subgroup but the aggregate ra...

Statistics & MathCausal InferenceProbability
15
0
134 people solved
Oct 13, 2025
Nielsen logo
Nielsen
Medium
Software EngineerSenior+

Behavioral: Walk Through the Project You Are Most Proud Of

In a behavioral interview for a senior software engineering role, the interviewer asks which project you are most proud of. The question sounds open, ...

Behavioral & LeadershipProject Deep Dive
1
0
9 people solved
May 4, 2026
Anrok logo
Anrok
Hard
Software Engineer

Design async batched key-value fetcher

Design an async, batched key-value fetcher with a 100 ms window Context You have a single-threaded, event-loop environment (e.g., JS/TS). A backend en...

System DesignData Structure DesignConcurrency
21
0
343 people solved
Sep 6, 2025
Uber logo
Uber
Medium
Software Engineer

Design time-versioned KV without timestamp argument

Design a time-versioned key-value store that does not accept a timestamp argument on writes. Support set(key, value) which stores the value with an in...

Coding & AlgorithmsData Structure Design
5
0
98 people solved
Aug 1, 2025
American Express logo
American Express
Medium
Product Manager

Choosing a Primary Metric and Guardrails for YouTube's Home Feed

You are the product manager responsible for YouTube's homepage: the personalized feed of recommended videos people see when they open YouTube. Which m...

Analytics & ExperimentationMetrics & KPIs
0
0
5 people solved
Nov 6, 2025
Meta logo
Meta
Medium
Product Manager

Improving the Email Facebook Sends When a User Is Tagged in a Photo

You are a product manager at Meta. When someone tags a Facebook user in a photo, Facebook can let that user know by email. How would you make this ema...

Product Design & StrategyProduct Design & Improvement
0
0
7 people solved
Oct 23, 2025
Optiver logo
Optiver
Hard
Data Scientist Locked

Find missing numbers in sequences

This question evaluates sequence pattern recognition, numerical reasoning with integers and rational numbers, and the ability to infer recurrences or ...

Coding & AlgorithmsPuzzles & Brainteasers
17
0
321 people solved
Feb 3, 2026
Meta logo
Meta
Medium
Data Scientist

Define and compute shop visibility in SQL

You own the 'shop visibility' KPI for a marketplace. Define a precise metric and write SQL to compute it over the last 7 days (use today = 2025-09-01,...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
8
0
88 people solved
Oct 13, 2025
Google logo
Google
Easy
Software Engineer

Find right-side view of binary tree

You are given the root of a binary tree. From the right side of the tree, at each depth you can see exactly one node: the rightmost node at that depth...

Coding & AlgorithmsTrees
10
0
124 people solved
Nov 1, 2025
CVS Health logo
CVS Health
Medium
Data Scientist

Build a leak-free sklearn churn pipeline

Take‑Home ML Task: Reproducible Subscription Classification Pipeline You are given a daily user-level dataset and must build a reproducible Python (sc...

Machine LearningML CodingModel Evaluation
17
0
135 people solved
Oct 13, 2025
Previous1...533534535...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