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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
Microsoft logo
Microsoft
Easy
Software Engineer

Design Anonymous Product Sharing with Every-Nth Visitor Rewards

Design a platform where companies create and update product pages containing images and descriptions, generate unique trackable links for social shari...

System DesignSystem Design FundamentalsDistributed Transactions & Idempotency
2
0
18 people solved
Aug 7, 2026
Goldman Sachs logo
Goldman Sachs
Medium
Software Engineer Locked

Rolling Ball Maze Reachability

Solve a rolling-ball maze reachability problem where direction changes are allowed only at stopping cells.

Coding & Algorithms
3
0
45 people solved
Aug 15, 2026
Profound logo
Profound
Easy
Software Engineer AI

Implement a Credit API Workflow

You are given documentation for a sandbox credit-management API. The documentation describes API operations for creating an account, adding credits, c...

Software Engineering FundamentalsAPI Integration & HTTP ClientsAuthentication & Authorization
24
0
245 people solved
Apr 4, 2026
Stripe logo
Stripe
Medium
Software Engineer

Answer hiring manager behavioral questions

Hiring manager round: behavioral questions Prepare structured answers to the following questions (with likely follow-ups). Use concrete examples from ...

Behavioral & LeadershipMotivation & FitProject Deep Dive
45
0
323 people solved
Jan 22, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Debug Round-Robin and Consistent-Hash Routing

Debug faulty round-robin and consistent-hash routers by defining invariants and deterministic tests. Cover membership changes, concurrency, ring wrapa...

Software Engineering Fundamentals
11
0
110 people solved
Aug 2, 2026
Airbnb logo
Airbnb
Medium
Data Engineer Locked

Find Users with Seven Consecutive Impression Days

Find users with impressions on seven consecutive calendar days using PostgreSQL, accounting for duplicate days and longer activity streaks.

Data Manipulation (SQL/Python)SQL
11
0
95 people solved
Sep 4, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Validate a Shopping Cart

This question evaluates the ability to implement robust input and business-rule validation for shopping-cart items, including data integrity checks, i...

Coding & AlgorithmsData Cleaning & WranglingArrays & Strings
26
0
203 people solved
Jun 10, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft, Intuit, Porter

Medium
Software Engineer

Split Bags to Minimize the Largest Bag

Problem nums[i] is the number of balls in one bag. One operation replaces a bag by two bags containing positive numbers of balls. Perform at most maxO...

Coding & AlgorithmsBinary SearchMath & Number Theory
0
0
10 people solved
Netflix logo
Netflix
Medium
Product Manager

Product Strategy and North-Star Metric for a Shared In-House AI Agent Platform

You are the product manager for an internal AI platform: other teams across the company use it to build their own AI agents. Answer in two parts. Clar...

Product Design & StrategyProduct StrategyMetrics & KPIs
0
0
12 people solved
Aug 23, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Bloomberg, Purestorage

Medium
Software Engineer

Count Axis-Aligned Squares in a Point Stream

Problem Implement the persistent DetectSquares class. add(point) stores a new point occurrence, with duplicate coordinates treated as separate choices...

Coding & AlgorithmsData Structure DesignMath & Number Theory
1
0
25 people solved
Google logo
GoogleMicrosoftAmazon
Hard
Software Engineer

Most Disjoint Character-Closed Substrings with Minimum Total Length

Problem Choose nonempty,non-overlapping substrings of s. If a chosen substring contains a character,it must contain every occurrence of that character...

Coding & AlgorithmsGreedyIntervals & Scheduling
1
0
13 people solved
Netapp logo
Netapp
Easy
System Software Engineer Locked

Reason About Deadlocks, Synchronization, False Sharing, and Privilege Transitions

Review core systems concepts through concrete examples: deadlock conditions and prevention, mutexes, condition variables, semaphores, atomics, spinloc...

Software Engineering Fundamentals
3
0
42 people solved
Aug 9, 2026
Mistral AI logo
Mistral AI
Medium
Machine Learning Engineer Locked

Optimize Nearest-Center Assignment Without Materializing NxKxD Distances

This Mistral AI machine learning question tests vectorized reasoning for nearest-center assignment without materializing an expensive intermediate ten...

Machine LearningML CodingMemory Management
6
0
118 people solved
Jul 2, 2026
Citadel Securities logo
Citadel Securities
Medium
Quantitative ResearcherIntern

Compare OLS, Ridge, and Lasso under Collinear Predictors

Explain how linear dependence among predictors affects ordinary least squares, ridge regression, and lasso. Discuss both fitted coefficients and stati...

Machine LearningRegression & Statistical ModelingML Fundamentals
0
0
10 people solved
Aug 15, 2026
Strava logo
Strava
Medium
Software Engineer

First Climb in Elevation Samples, Strict and With a Tolerated Partial Descent

Elevation is sampled at regular intervals along a route. Given the samples as a list of integers, find the first climb and return its start and end in...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
0
0
16 people solved
Sep 22, 2026
Nuro logo
Nuro
Hard
Software Engineer Locked

Explain Project Scope, Ownership, and Technical Challenges

Explain project scope, ownership, architecture, and the hardest technical challenge with defensible decisions, validation evidence, and lessons learne...

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
4
0
37 people solved
Aug 31, 2026
Amazon logo
Amazon
Medium
Software Engineer

Discount Only Complete Dollar-Price Words in a Sentence

Problem Words in sentence are separated by one space. A price word is a dollar sign followed only by decimal digits, with at least one digit. Apply di...

Coding & AlgorithmsParsing & InterpretersArrays & Strings
1
0
9 people solved
PayPal logo
PayPal
Medium
Product Manager

Design a PayPal Feature That Helps Groups Split and Settle Shared Costs

You are a product manager at PayPal and want to design a new feature that makes splitting payments easier for users. Explain how you interpret "splitt...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
10 people solved
Aug 25, 2026
CVS Health logo
CVS Health
Easy
Software EngineerSenior+

Discuss Your React or AngularJS Experience

Do you have experience with React or AngularJS? Describe what you have actually built or maintained, what you owned, and how much familiarity you have...

Behavioral & LeadershipReact & UI FrameworksSelf-Awareness & Growth
0
0
12 people solved
Jul 25, 2026
Digitalocean logo
Digitalocean
Medium
Software Engineer Locked

Specify House-Selection Constraints Before Choosing a Robbery Dynamic Program

Clarify house layout and selection conflicts, derive a conditional linear dynamic program, and explain how circular or graph constraints change it.

Software Engineering FundamentalsDynamic Programming
4
0
34 people solved
Sep 16, 2026
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