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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
Meta logo
Meta
Medium
Software Engineer

Implement encoding validation and grid shortest path

Part A — Byte-encoding validation: You are given an array of integers in [0, 255] representing bytes. Determine whether the sequence encodes valid cha...

Coding & Algorithms
7
0
70 people solved
Sep 6, 2025
Tools For Humanity logo
Tools For Humanity
Easy
Data Scientist

Detect and evaluate "stolen" posts

You are a Data Scientist at a Twitter-like app. The platform suspects an increase in “stolen posts” (users reposting/plagiarizing others’ content with...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
9
0
93 people solved
Aug 29, 2025
Google logo
Google
Medium
Product Manager

Designing a credit card bill-pay experience inside Google Pay

You have just joined Google Pay as a product manager, and you are asked to design a feature that helps people pay their credit card bills. Explain wha...

Product Design & StrategyProduct Design & Improvement
0
0
5 people solved
Jan 30, 2024
Instacart logo
Instacart
Medium
Software Engineer

Pivot transactions by date without date libs

Given a stream of transaction rows (shopper_id, date_str, amount) where date_str is ISO format 'YYYY-MM-DD', produce a pivoted report for a specified ...

Data Manipulation (SQL/Python)
4
0
38 people solved
Sep 6, 2025
Google logo
Google
Medium
Product Manager

Rework a Grocery Store's Floor Plan and Operations for a Tenfold Jump in Shoppers

Your grocery store suddenly has ten times as many shoppers coming through its doors as it normally handles. How would you redesign the store's layout ...

Product Design & StrategyOperations & CapacityProduct Design & Improvement
0
0
4 people solved
Nov 10, 2025
Nike logo
Nike
Medium
Product Manager

Product critique: pick a product that frustrates you and diagnose where it fails

Name a product you dislike using, and explain why it sits at the bottom of your list. `hint Find the moment it breaks Anchor the answer in the specifi...

Product Design & StrategyProduct Sense
0
0
7 people solved
Oct 25, 2023
Google logo
Google
Medium
Product Manager

Physical product redesign: rethinking the ceiling fan for a user group you choose

You are a product manager asked how you would redesign the ceiling fan. Choose who you are designing for and where the fan is used, work out what toda...

Product Design & StrategyProduct Design & ImprovementProduct Sense
0
0
6 people solved
Mar 18, 2024
Amazon logo
Amazon
Medium
Software Engineer

Reflect on self, goals, learning, competitions

Prepare structured behavioral answers for these interview questions: 1. Give three words that accurately describe you as a professional, and illustrat...

Behavioral & Leadership
7
0
55 people solved
May 28, 2025
Amazon logo
Amazon
Medium
Software Engineer

Design rolling-window top-K click tracker

Design rolling-window top-K click tracker You receive a high-volume stream of click events (timestamp in ms, url). Implement a data structure with two...

Coding & Algorithms
7
0
77 people solved
Jul 31, 2025
Google logo
Google
Medium
Product Manager

Subscription monetization strategy for Google Keep

Google Keep is a free app that people use to save notes and lists and to share them with others. You are a product manager asked to turn Keep into a s...

Product Design & StrategyGrowth & Monetization
0
0
5 people solved
Mar 28, 2024
Veeva Systems logo
Veeva Systems
Medium
Product Manager

Modeling a Health-System Account Hierarchy When Clinicians Work at Several Sites

Design a data model that can represent an account hierarchy in healthcare. There are several reasonable ways to model it, and each has different conse...

System DesignTechnical Tradeoffs for PMsSystem Design Fundamentals
0
0
5 people solved
Jun 15, 2024
Google logo
Google
Medium
Product Manager

Fermi Estimation Case: How Heavy Is a Boeing 747?

Estimate how much a Boeing 747 weighs. Walk through how you get to the number, call out each assumption, and finish with a figure and how confident yo...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Apr 9, 2024
Google logo
Google
Medium
Product Manager

Google Streaming Entry Strategy Built on Film Studio Partnerships

Google wants to become a real player in streaming through partnerships with the film industry. What partnership approach should it take, and why? `hin...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
5 people solved
Apr 23, 2024
Google logo
Google
Medium
Product Manager

Design a Google lost-item finder and decide whether Google should launch it

Google is considering a move into helping people locate belongings they have misplaced or lost. Lay out what the product should be, then decide whethe...

Product Design & StrategyProduct SenseProduct Strategy
0
0
6 people solved
Nov 6, 2024
Google logo
Google
Medium
Product Manager

Risks and mitigation plan after an unreleased smart speaker prototype leaks to the press

You are a product manager at Google on the team building a new smart speaker that has not launched yet. A prototype of the speaker was left behind at ...

Product / Decision MakingRequirements & Launch ExecutionCommunication & Stakeholders
1
0
9 people solved
Dec 3, 2025
Meta logo
Meta
Medium
Software Engineer

Find mode or minimum with time-space tradeoffs

For an unsorted array of integers, implement two functions: ( 1) return the minimum value; ( 2) return the value that appears most frequently (the mod...

Coding & Algorithms
7
0
57 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Product Manager

Diagnose a 10% Drop in Facebook Page Creation, Then a 5% WAU Decline After the Fix

Facebook Pages are the public presences that businesses, brands, public figures and organizations run on Facebook. As a product manager, you are hande...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
0
0
6 people solved
Jun 24, 2024
Meta logo
Meta
Medium
Product Manager

Choosing and Launching an Additional Revenue Stream for Instagram

You are a product manager at Instagram and have been asked to find a new way for the app to make money. Propose one monetization strategy, explain why...

Product Design & StrategyGrowth & MonetizationProduct Strategy
0
0
6 people solved
Jun 1, 2024
Raiffeisenbank logo
Raiffeisenbank
Hard
Machine Learning Engineer

Word2Vec Training, Homonymy in Static Embeddings, and the Idea Behind GloVe

Answer four questions on word embeddings: how Word2Vec works and is trained, whether a word gets the same Word2Vec vector in two different sentences, ...

Machine LearningNatural Language Processing
0
0
1 people solved
Apr 15, 2026
Electronic Arts logo
Electronic Arts
Medium
Product Manager

Pick a product you love and lay out a plan to grow its revenue

Choose a product you use and like. As its product manager, how would you increase its revenue? `hint Split revenue into parts Write the product's reve...

Product Design & StrategyGrowth & MonetizationBusiness Case Analysis
0
0
4 people solved
Dec 21, 2025
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