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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
DoorDash logo
DoorDash
Medium
Machine Learning Engineer Locked

Design personalized restaurant search and recommendations

This question evaluates a candidate's expertise in designing scalable, personalized restaurant search and recommendation systems, including system arc...

System DesignRecommendation SystemsRetrieval & Candidate Generation
45
0
369 people solved
Feb 3, 2026
Virtu Financial logo
Virtu Financial
Hard
Quantitative Researcher Locked

Compare Two Strategies for Getting Ten Consecutive Heads

Compare two ways to obtain ten consecutive heads using dynamic programming and independent rounds. The solution highlights overlapping-window dependen...

Statistics & Math
4
0
32 people solved
Aug 21, 2026
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Walmart Product Design: Showing Shoppers the Environmental Impact of What They Buy

You are a product manager at Walmart. Design a product that lets Walmart shoppers follow the environmental impact of what they buy, so they can keep t...

Product Design & StrategyProduct SenseMetrics & KPIs
1
0
9 people solved
Sep 14, 2026
Stripe logo
Stripe
Medium
Software Engineer

Describe adapting quickly to unfamiliar problems

Behavioral & Leadership: Delivering Under Pressure, Learning Quickly, and Communicating Clearly Context: You are interviewing for a software engineeri...

Behavioral & Leadership
18
0
128 people solved
Sep 6, 2025
Google logo
Google
Medium
Data Scientist

Handle highly imbalanced classification data

You must build a binary classifier for fraud with a 0.2% positive rate and 10M rows × 500 features. Propose an end-to-end plan that covers: 1) data sp...

Machine LearningSupervised LearningModel Evaluation
19
0
153 people solved
Oct 13, 2025
Oracle logo
Oracle
Medium
Software Engineer

Detect whether a directed graph given as an edge list contains a cycle

You are given a directed graph with n nodes labeled 0 to n - 1 and a list of directed edges. Return whether the graph contains at least one directed c...

Coding & AlgorithmsGraphs
0
0
14 people solved
Aug 1, 2026
Apple logo
Apple
Medium
Machine Learning Engineer

Solve stock and banana problems

Solve both coding problems below. 1. Maximum single-transaction stock profit: Given an array prices where prices[i] is the stock price on day i, retur...

Coding & Algorithms
9
1
106 people solved
Dec 17, 2025
Airbnb logo
Airbnb
Hard
Software EngineerSenior+

Design a fast host listing metrics page

Design the backend for a host (landlord) listings page. User flow: - Host opens a page showing many of their listings. - Host selects a date range. - ...

System DesignIndexing & Query PerformanceCaching
43
0
528 people solved
Dec 20, 2025
IXL Learning logo
IXL Learning
Hard
Software EngineerNew Grad Locked

Maintain a Stream Median

This question evaluates the ability to design and implement efficient online data structures and algorithms for maintaining dynamic order statistics a...

Coding & Algorithms
7
0
60 people solved
Feb 22, 2026
Google logo
Google
Medium
Product Manager

Go-to-Market and Staged Rollout Plan for a New MLOps Platform

Machine learning operations (MLOps) tools help teams move models from experiments into production and keep them working there: data and training pipel...

Product Design & StrategyRequirements & Launch ExecutionMetrics & KPIs
0
0
11 people solved
Jun 24, 2026
Upstart logo
Upstart
Medium
Software Engineer

Demonstrate Project Ownership

Demonstrate Project Ownership Describe a project you owned, from identifying the problem through delivery and follow-up. Constraints & Assumptions - D...

Behavioral & Leadership
3
0
52 people solved
Jan 15, 2026
Disney logo
Disney
Easy
Software Engineer

Design a frontend shopping cart and feature flags

Scenario You are designing frontend-focused systems for a large e-commerce web app. Part A — Shopping cart (frontend focus) Design the shopping cart e...

System DesignState ManagementExperiment Design (A/B Testing)
23
0
191 people solved
Nov 24, 2025
Vanta logo
Vanta
Medium
Software Engineer

Design streaming test logger and queries

Implement a streaming logger and two query operations for test runs with globally strictly increasing timestamps. 1) Implement log(test_id, timestamp,...

Coding & AlgorithmsData Structure DesignIntervals & Scheduling
24
0
483 people solved
Jul 31, 2025
Meta logo
Meta
Hard
Data Engineer

Compute Max Score From Up to 3 Categories

You are implementing a scoring function for a library summer reading program. Each book a student read is represented as a tuple (category: str, point...

Coding & Algorithms
11
0
96 people solved
Dec 2, 2025
Google logo
Google
Hard
Software Engineer

Find longest duplicated substring

You are given a string s consisting of lowercase English letters. A substring of s is any contiguous sequence of characters, i.e., s[i..j) for 0 ≤ i <...

Coding & AlgorithmsString AlgorithmsBinary Search
16
0
220 people solved
Dec 8, 2025
xAI logo
xAI
Medium
Machine Learning Engineer

What are processes vs threads?

Question Explain the difference between multiprocessing and multithreading in the context of building concurrent applications. Cover the following: - ...

Software Engineering FundamentalsOperating Systems
41
0
275 people solved
Feb 12, 2026
Citadel logo
Citadel
Medium
Software EngineerNew Grad

Explain career motivations and choices

Behavioral Fit Prompts for a Software Engineer (Technical Screen) Context: You are interviewing for a Software Engineer role in the finance industry d...

Behavioral & LeadershipMotivation & Fit
11
0
152 people solved
Sep 6, 2025
Snapchat logo
Snapchat
Medium
Software Engineer

Compute minimum escape time in a grid

You are given a 2D floor plan grid. Each cell is one of: - . empty space (walkable) - # wall/blocked (not walkable) - P a person - E an exit A person ...

Coding & Algorithms
15
0
116 people solved
Jan 26, 2026
Intuit logo
Intuit
Medium
Product Manager

TurboTax Product Sense: Help Crypto Investors Report Trades and Income Accurately

You are a product manager on TurboTax, Intuit's tax-preparation product. Design a feature that helps filers report their cryptocurrency activity on th...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
12 people solved
Apr 28, 2026
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Design a pipeline orchestration system on Kubernetes

This question evaluates a candidate's ability to design scalable, highly available pipeline and workflow orchestration systems on Kubernetes, emphasiz...

System DesignJob Scheduling & WorkflowsContainers & Orchestration
14
0
145 people solved
Feb 11, 2026
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