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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
Imc logo
Imc
Medium
Data Scientist Locked

Choose optimal posted price under adverse selection

This question evaluates probabilistic reasoning, Bayesian updating, expected-value optimization under asymmetric information, and basic mechanism-desi...

Machine Learning
4
0
74 people solved
Jan 14, 2026
Apple logo
Apple
Medium
Software Engineer Locked

Multiply Two Sparse Matrices

Multiply two sparse integer matrices without performing work for known zero contributions. Preprocess nonzero rows, join compatible inner indices, acc...

Coding & Algorithms
8
0
61 people solved
May 14, 2026
Hightouch logo
Hightouch
Medium
Product Manager

PM behavioral: an insight others missed that changed a business result

Describe an insight you reached that other people had missed, and how acting on it changed a business result. `hint Explain why it was hidden Intervie...

Behavioral & LeadershipAmbiguity & Decision MakingLeadership & Influence
0
0
6 people solved
Feb 21, 2026
Capital One logo
Capital One
Medium
Data Scientist

Refactor code and enforce robustness

Code Review and Refactor: Summing a CSV Column Context You are reviewing a short Python script that sums a numeric column from a CSV using pandas. You...

Coding & AlgorithmsCode Quality & MaintainabilityPandas & Python Data
10
0
163 people solved
Oct 13, 2025
Salesforce logo
Salesforce
Medium
Software Engineer

Help a Colleague Resolve a Difficult Problem

Prompt Tell me about a time you helped a colleague resolve a difficult problem. Explain how you learned what they needed, how you contributed without ...

Behavioral & Leadership
1
0
22 people solved
Apr 11, 2026
Google logo
Google
Medium
Software Engineer

Handling Conflict with a Coworker and with a Manager When You Were Wrong

Two related behavioral prompts about conflict were reported from a Google software engineering interview loop at the mid level. Answer each one with a...

Behavioral & LeadershipConflict & CollaborationFailure & Learning
0
0
10 people solved
Mar 4, 2026
Atlassian logo
Atlassian
Medium
Machine Learning Engineer Locked

Compute moving and weighted averages from a stream

This question evaluates a candidate's understanding of streaming algorithms, sliding-window statistics, and resource-constrained data structure design...

Coding & Algorithms
7
0
76 people solved
Oct 15, 2025
Boston Consulting Group logo
Boston Consulting Group
Medium
Data Scientist

Compute posterior and predictive coin probabilities

Bayesian coin: posterior, prediction, and stopping-time expectation Context - You have two coins and will use the same coin for all flips: - Fair co...

Statistics & MathBayesian StatisticsProbability
20
0
148 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Demonstrate advanced techniques and ethical judgment

Behavioral & Leadership — Data Scientist Technical Screen Provide concise STAR responses (4–7 sentences each) with quantifiable outcomes. Focus on you...

Behavioral & Leadership
6
0
71 people solved
Oct 13, 2025
Google logo
Google
Hard
Software Engineer

Describe Helping an Underperforming Peer

Answer the following behavioral interview questions: 1. Tell me about a time when you helped a peer or teammate who was underperforming. 2. Tell me ab...

Behavioral & Leadership
5
0
66 people solved
Jan 20, 2026
Revolut logo
Revolut
Medium
Product Manager

Launch In-Person Cash Deposits for Revolut Top-Ups, Then Diagnose a Falling KPI

You are a product manager on Revolut's top-up team, the team responsible for the ways customers add money to their accounts. Answer two questions: how...

Product Design & StrategyRequirements & Launch ExecutionMetric Diagnostics
1
0
12 people solved
Oct 17, 2025
Zipline logo
Zipline
Medium
Software Engineer

Design a Redundant Railroad Crossing

Design a safe and redundant control system for an at-grade railroad crossing used by road vehicles and pedestrians. The system should detect approachi...

System Design
7
0
72 people solved
Jan 25, 2026
HubSpot logo
HubSpot
Medium
Product Manager

HubSpot Company Knowledge: Business Model, Competitors and Market Position

What do you know about HubSpot, and how much of its market does it hold? `hint Define the market first HubSpot's share looks very different depending ...

Product Design & StrategyMarket & Competitive AnalysisEstimation & Market Sizing
0
0
5 people solved
Dec 31, 2025
DoorDash logo
DoorDash
Medium
Software EngineerSenior+

Find Each Cell's Nearest Source

Given an m x n grid containing 1 for source cells and 0 for regular cells, compute for every cell the shortest 4-directional distance to any source ce...

Coding & AlgorithmsGrids & MatricesGraphs
16
0
120 people solved
Feb 3, 2026
Samsung logo
Samsung
Medium
Machine Learning Engineer

Maximize sum of non-adjacent values

Problem You are given an integer array nums representing the amount of money available at each house along a street. If you take money from house i, y...

Coding & Algorithms
7
0
71 people solved
Mar 1, 2026
Coinbase logo
Coinbase
Medium
Data ScientistSenior+

How would you A/B test first trade rate?

Coinbase wants to increase the rate at which newly signed-up retail users place their first trade. Design an A/B test for a product change intended to...

Analytics & Experimentation
7
0
68 people solved
Mar 25, 2025
Google logo
Google
Medium
Product Manager

Assess and Prioritize the Key Obstacles Holding Back Google Workspace

Google Workspace is Google's suite of work tools for organizations, including Gmail, Calendar, Drive, Docs, Sheets, Slides, Meet and Chat. As a produc...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
1
0
8 people solved
Jun 24, 2026
Airwallex logo
Airwallex
Medium
Data ScientistSenior+

Explaining a KYC Submit-Rate Rise From 25% to 35% Among New Business Signups

A fintech platform for businesses tracks its KYC submit rate: the share of new signups that go on to submit Know Your Customer (KYC) verification docu...

Analytics & ExperimentationMetric DiagnosticsCausal Inference
0
0
2 people solved
Aug 15, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Compute dasher pay with peak-hour query

This question evaluates a candidate's ability to perform time-interval arithmetic, prorated pay aggregation, robust handling of missing or inconsisten...

Coding & AlgorithmsIntervals & Scheduling
18
0
175 people solved
Jan 2, 2026
Turo logo
Turo
Medium
Software Engineer

Discuss complex project decisions and observability

Answer the following behavioral questions with concrete examples (use a structured format such as STAR): - Describe a recent AI-related project you wo...

Behavioral & Leadership
9
0
67 people solved
Feb 12, 2026
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