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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
Apple logo
Apple
Medium
Machine Learning Engineer

Describe recent project experiences

Describe recent project experiences Behavioral: Walk Through Two Recent ML Projects Context: Technical screen for a Machine Learning Engineer. Focus o...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
6
0
100 people solved
Jul 26, 2025
Apple logo
Apple
Medium
Software Engineer

Compute top three scores per student

Compute top three scores per student You are given a list of (student_id, score) records. Return, for each student, their highest three scores in desc...

Coding & AlgorithmsHeaps & Priority Queues
10
0
115 people solved
Aug 9, 2025
Instacart logo
Instacart
Medium
Software Engineer

Solve bank, password, expression algorithm tasks

Solve bank, password, expression algorithm tasks Implement a banking system that supports four specified operations within 90 minutes. Implement a pas...

Coding & AlgorithmsData Structure DesignParsing & Interpreters
10
0
161 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Product Manager

Estimate Customer Reviews Posted on Amazon.com on a Typical Monday

Estimate the total number of customer reviews posted across Amazon.com on any given Monday. Walk the interviewer through how you scope the question, t...

Product / Decision MakingEstimation & Market Sizing
1
0
14 people solved
Sep 8, 2024
SoFi logo
SoFi
Easy
Software Engineer Locked

Count numbers with same popcount up to all-ones bound

This question evaluates skill in bit manipulation and combinatorial counting over binary representations in the Coding & Algorithms domain, specifical...

Coding & AlgorithmsBit ManipulationMath & Number Theory
21
0
145 people solved
Jan 7, 2026
Amazon logo
Amazon
Medium
Software Engineer

Design a GitHub-like user community

System design: GitHub-like user community Design the backend for a “developer community” product inspired by GitHub’s social layer. Core requirements ...

System Design
2
0
52 people solved
Sep 5, 2025
Medium
Software Engineer Locked

Return the k-th row of Pascal-like triangle

This question evaluates combinatorics, array manipulation, and space-efficient algorithm design by requiring computation of a specific row of Pascal’s...

Coding & Algorithms
5
0
49 people solved
Jan 21, 2026
Hebbiaai logo
Hebbiaai
Medium
Software Engineer Locked

Detect Winners in Nested Tic-Tac-Toe

This question evaluates board-evaluation and pattern-detection skills, modular decomposition for reusable logic, and the ability to reason about time ...

Coding & Algorithms
2
0
45 people solved
Oct 24, 2025
Expedia logo
Expedia
Medium
Product Manager

Describe a Product Manager's Job in Words a Preschooler Can Follow

Explain what a product manager does in a way a four-year-old would understand. `hint Map the job to a scene List the few things a product manager actu...

Behavioral & LeadershipCommunication & Stakeholders
0
0
6 people solved
Mar 9, 2025
Meta logo
Meta
Medium
Data Scientist Locked

Should WhatsApp Launch Group Calls?

This question evaluates product analytics and experimentation skills, specifically defining north-star, primary, guardrail and diagnostic metrics from...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
12
0
94 people solved
Mar 14, 2026
Pinterest logo
Pinterest
Medium
Data Scientist

Find available reservation time slots

Problem You are building an API to show which time slots are available for booking at a restaurant. You are given: - The restaurant’s opening hours (p...

Coding & AlgorithmsIntervals & SchedulingSorting
20
0
159 people solved
Aug 2, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Product design for shared cab rides booked and split inside a chat app

Design a cab-sharing service that is built into a chat application instead of being shipped as a separate app. Explain which kind of chat app you are ...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
7 people solved
Mar 21, 2026
Amazon logo
Amazon
Medium
Data Scientist

Explain Propensity Score Matching and Assess Covariate Balance

Explain Propensity Score Matching and Assess Covariate Balance Propensity Score Matching (PSM) Context You have observational data with a binary treat...

Statistics & Math
4
0
85 people solved
Aug 4, 2025
ByteDance logo
ByteDance
Medium
Software Engineer

Validate a bracket string

Given a string s containing only the characters '(', ')', '{', '}', '[', and ']', determine whether the input string is valid. A string is valid if: 1...

Coding & Algorithms
8
0
66 people solved
Oct 14, 2025
Google logo
Google
Medium
Product Manager

Growth Strategy for Expanding One Highly Successful Food Truck

You own one food truck and business is booming. You want to turn it into a much larger business. How would you go about scaling it? Explain how you wo...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
6 people solved
Jun 30, 2024
Samsung logo
Samsung
Medium
Product Manager

Diagnose a 30% Fall in Online Purchases at The New Yorker

Online orders at The New Yorker are down 30%. As the product manager, walk through how you would find out why. `hint Check the number first Before bla...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
0
0
5 people solved
Dec 30, 2024
Amazon logo
Amazon
Medium
Software EngineerSenior+

Digging Into Details: Untangling a Complex Team Problem and Finding a Root Cause

This behavioral round probes how deep you go: whether you stay close to the details of complex problems and keep digging until you know what is really...

Behavioral & LeadershipAmbiguity & Decision Making
0
0
8 people solved
Jun 19, 2026
EMX logo
EMX
Medium
Product Manager

Explain the Programmatic Ad Ecosystem: Publishers, SSPs, DSPs, Exchanges and RTB

You are interviewing for a product manager role at EMX, and the interviewer asks you to explain what programmatic advertising is. Describe the parties...

Software Engineering FundamentalsAds Systems
1
0
10 people solved
May 24, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Describe background and motivations

Describe background and motivations Behavioral Interview Prompts — Technical/Phone Screen (Software Engineer) Context You are preparing for a technica...

Behavioral & Leadership
9
0
68 people solved
Aug 4, 2025
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Design a Kid-Safe Facebook for Children and Their Parents

Imagine Facebook is building a version of its social network for kids, and you are the product manager. Decide which children it is for and what it sh...

Product Design & StrategyProduct SenseTrust & Safety
1
0
8 people solved
Apr 23, 2025
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