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
Uber logo
Uber
Medium
Data ScientistNew Grad Locked

Can one car serve all riders?

This question evaluates understanding of interval scheduling and conflict detection, testing skills in time-interval reasoning, sorting, and efficient...

Coding & AlgorithmsIntervals & Scheduling
8
0
92 people solved
Apr 6, 2026
Nuro logo
Nuro
Easy
Software Engineer Locked

Parse logs and count error codes

This question evaluates parsing and sanitizing structured text, extracting specific fields, and performing frequency aggregation of identifiers such a...

Coding & AlgorithmsParsing & Interpreters
7
0
121 people solved
Feb 12, 2026
Meta logo
Meta
Medium
Software EngineerSenior+

Behavioral: Your Highest-Impact Project and an Innovation You Did Not Plan

This is a behavioral round in a senior to staff-level software engineering loop. The interviewer asks the two prompts below and follows each with prob...

Behavioral & LeadershipProject Deep DiveInnovation & Simplification
0
0
16 people solved
Apr 1, 2026
Databricks logo
Databricks
Hard
Data ScientistIntern

Diagnose and fix multicollinearity in income regression

You want to estimate the relationship between gender and income using a regression model, while controlling for other covariates such as: - age - educ...

Statistics & MathRegression & Statistical Modeling
7
0
115 people solved
Oct 14, 2025
Google logo
Google
Medium
Product Manager

Explain How Machine Learning Works Using a Kid-Friendly Analogy

In a Google product manager interview, the interviewer asks you to explain machine learning to a five-year-old. Deliver the explanation the way you wo...

Machine LearningCommunication & StakeholdersML Fundamentals
0
0
11 people solved
Jun 12, 2026
Visa logo
Visa
Medium
Software Engineer I Locked

Find the Shortest Distance in a Weighted Undirected Graph

Find the minimum total weight between two vertices in a large undirected graph with positive edges. Build an adjacency list, run Dijkstra with a prior...

Coding & Algorithms
5
0
40 people solved
Aug 8, 2026
Amazon logo
AmazonGoogleMicrosoftBloomberg

Also asked at Microsoft, Bloomberg

Easy
Software Engineer

Reverse Through the First Matching Character

Problem Reverse the prefix of word from index 0 through the first occurrence of ch, including that occurrence. Leave every later character unchanged. ...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
Google logo
Google
Medium
Software Engineer

Evaluate a Lisp-Style Expression Language with let, add and mult Scoping

Reported from a Google software engineering coding interview. Write an evaluator for a tiny Lisp-like expression language. Given one valid expression ...

Coding & AlgorithmsParsing & Interpreters
1
0
28 people solved
Mar 4, 2026
Instacart logo
Instacart
Medium
Machine Learning Engineer

Design Delivery-Time Prediction with a Cold-Start Plan

Design a system that predicts when a grocery order will arrive. Explain the model, the training data, and how the system would start operating before ...

Machine LearningML System DesignSupervised Learning
0
0
9 people solved
Jul 15, 2026
Google logo
Google
Easy
Software Engineer

Find the Smallest Stable Index I

Find the Smallest Stable Index I You are given an integer array nums of length n and an integer k. For each zero-based index i, define its instability...

Coding & AlgorithmsArrays & Strings
0
0
7 people solved
OpenAI logo
OpenAI
Medium
Software Engineer

Implement KV store and plan type conversions

Part 1 — Versioned key-value store: Implement a data structure with set(key, value, t) and get_at(key, t) that returns the value for key whose timesta...

Coding & AlgorithmsData Structure DesignGraphs
68
0
531 people solved
Sep 6, 2025
Google logo
Google
Medium
Data ScientistSenior+

How would you use propensity score matching here

You want to estimate the causal effect of a new recommender feature on 7-day retention. The feature was not randomized: users “opt in” after seeing a ...

Analytics & ExperimentationCausal Inference
29
0
223 people solved
Nov 24, 2025
Jump Trading logo
Jump Trading
Easy
Software Engineer Locked

Design Stack Evaluators and Low-Latency Memory Primitives

Practice systems-programming design across an RPN evaluator with macros, a lock-free SPSC queue, false sharing, and a cross-thread pool allocator. Exp...

Software Engineering FundamentalsStacks & QueuesConcurrency
18
0
138 people solved
Jun 14, 2026
Hinge Health logo
Hinge Health
Medium
Product Manager

AllTrails: keep hikers coming back and premium members renewing

You are a product manager at AllTrails, the app people use to find, plan and follow hiking trails. How would you raise retention, both across the app ...

Product Design & StrategyGrowth & MonetizationMetrics & KPIs
1
0
8 people solved
Feb 20, 2026
Natoora logo
Natoora
Medium
Data Analyst

Explain pricing fit and ETL architecture

Question You are interviewing for a Pricing Analyst / Data Analyst role at Natoora, a food (fresh-produce) company. You do not have direct pricing exp...

Behavioral & LeadershipETL & Data PipelinesMetrics & KPIs
15
0
148 people solved
Feb 11, 2026
Google logo
Google
Medium
Software EngineerNew Grad Locked

Reason About an Endpoint-Only Interval Score

Derive why an interval-minus-interior score depends only on its endpoints, then solve the linear selection problem while making tied-index behavior ex...

Software Engineering Fundamentals
3
0
28 people solved
Jun 7, 2026
LinkedIn logo
LinkedIn
Medium
Machine Learning Engineer

Compute total covered interval length

Compute total covered interval length Given a list of integer intervals [l, r) (half-open), compute the total length covered by at least one interval....

Coding & AlgorithmsIntervals & SchedulingSorting
25
0
204 people solved
Jul 16, 2025
Google logo
Google
Medium
Product Manager

Design a Movie and TV Discovery Product That Can Win Users From IMDb

You are asked to design a new product that competes with IMDb, the long-established online database of movies, TV shows and the people who make them. ...

Product Design & StrategyProduct SenseMarket & Competitive Analysis
0
0
7 people solved
Aug 4, 2026
Amazon logo
AmazonGoogle
Medium
Software Engineer

Use the Fewest Value-Range-Bounded Subsequences

Problem Partition all occurrences of nums into subsequences, using each occurrence exactly once. Within each subsequence, the largest value minus the ...

Coding & AlgorithmsGreedySorting
1
0
9 people solved
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Explain and Diagnose a Segmentation Fault

Explain how a segmentation fault arises from protected virtual-memory access and why the faulting instruction may be far removed from the original C++...

Software Engineering Fundamentals
11
0
101 people solved
May 15, 2026
Previous1...325326327...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