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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
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
Visa logo
Visa
Medium
Software Engineer I Locked

Count Cross-Array Pairs with a Target Sum

Count cross-array index pairs whose values add to a target, with duplicates contributing their full multiplicity. Use complementary frequency counts o...

Coding & Algorithms
4
0
47 people solved
Aug 8, 2026
Amazon logo
Amazon
Medium
Machine Learning Engineer

GRPO in NumPy: Group-Relative Advantages, Process Rewards and Shaped Rewards

In a notebook, implement the core computations of Group Relative Policy Optimization (GRPO) with NumPy, then extend them to process rewards and to sha...

Machine LearningReinforcement LearningML Coding
4
0
32 people solved
Jan 3, 2026
Grammarly logo
GrammarlyMorgan Stanley
Medium
Software Engineer

Fewest Substrings with Equal Character Frequencies

Fewest Substrings with Equal Character Frequencies You are given a lowercase English string s. Partition the entire string into one or more nonempty, ...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
11 people solved
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
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
Google logo
GoogleAmazonMetaTCS

Also asked at Meta, TCS

Easy
Software Engineer

Reshape a Matrix while Preserving Row Order

Problem Return mat reshaped to r rows and c columns, retaining its original row-by-row sequence. If the new dimensions do not contain exactly the same...

Coding & AlgorithmsGrids & Matrices
0
0
12 people solved
Meta logo
Meta
Medium
Software Engineer

Design a bank system with scheduled transfers

Bank System (OOD): Accounts, Transfers, Scheduling, Top Spending, Merge Design an in-memory banking system that supports: - account creation - deposit...

Coding & Algorithms
7
0
102 people solved
Feb 11, 2026
J.P. Morgan logo
J.P. Morgan
Easy
Software Engineer

Improve shopping cart latency and stock notifications

You are given an existing e-commerce shopping cart system (web/mobile) that already supports adding/removing items and viewing the cart. The interview...

System DesignReal-Time SystemsCaching
18
0
156 people solved
Feb 9, 2026
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
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
Cloudflare logo
Cloudflare
Medium
Software Engineer

Design an encrypted key-value store with login

Prompt Design a small key–value store that supports user login and ensures values are encrypted at rest using a user-provided password. You may assume...

Software Engineering FundamentalsKey-Value StoresCryptography
13
0
157 people solved
Oct 4, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Design a Food Review Platform

Design a Food Review Platform Design a platform where users discover food businesses, read reviews, and submit ratings and review text. Clarify whethe...

System Design
5
0
44 people solved
Apr 3, 2026
Grab logo
Grab
Medium
Product Manager

Evaluating a Grab-Owned Chauffeur Service: Go or No-Go

Grab runs ride-hailing, food delivery and payments across Southeast Asia. Should it launch a chauffeur service of its own? Give a recommendation and w...

Product Design & StrategyProduct StrategyBusiness Case Analysis
0
0
7 people solved
Sep 2, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Explain virtual machines and concurrency basics

Topics Answer at a senior-engineer depth. Use diagrams or step-by-step reasoning as needed. 1) Virtual machines (VMs) - What is a VM and what problem ...

Software Engineering FundamentalsConcurrencyOperating Systems
33
0
361 people solved
Jan 6, 2026
Google logo
GoogleMetaAmazon

Also asked at Amazon, Microsoft, Innovaccer, Bloomberg

Easy
Software Engineer

Seconds Until a Chosen Ticket Buyer Finishes

Problem People initially line up in array order, and person i wants to buy tickets[i] tickets. Each purchase takes exactly one second and buys one tic...

Coding & AlgorithmsSimulation & State MachinesStacks & Queues
1
0
7 people solved
Netflix logo
Netflix
Hard
Software Engineer

Design ads frequency capping service

Design an Ads Frequency Capping Service Context You are designing a service that ensures a user does not see the same ad creative or campaign more tha...

System DesignAds SystemsRate Limiting
47
0
723 people solved
Jul 17, 2025
Reddit logo
Reddit
Medium
Software Engineer

Find word sequence with 1–2 char changes

Given a beginWord, an endWord, and a dictionary (wordList) of unique same-length lowercase words, determine whether there exists a transformation sequ...

Coding & AlgorithmsGraphs
11
0
190 people solved
Sep 6, 2025
Shopify logo
Shopify
Medium
Software Engineer

Explain background, motivations, and stakeholder handling

Behavioral HR Screen: Software Engineer (Shopify) You are preparing for a first-round HR screen for a Software Engineer role. Provide concise, structu...

Behavioral & LeadershipMotivation & FitCommunication & Stakeholders
10
0
184 people solved
Sep 6, 2025
Stripe logo
Stripe
Hard
Data Scientist

Design a model for subscription adoption prediction

Predicting 60-Day Adoption of Subscription by Non-Subscription Merchants Context You need to predict which merchants who are not currently using the S...

Machine Learning
5
0
76 people solved
Oct 13, 2025
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