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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Upstart logo
Upstart
Medium
Data Scientist

Find Minimum Path Sum in Integer Triangle

Scenario Tech interview round 1 – dynamic programming challenge Question Given a triangle of integers, find the minimum path sum from top to bottom. A...

Coding & Algorithms
9
0
47 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Software Engineer

Find longest segment with dominant ends

Question Given an integer array nums, find and return the length of the longest contiguous subarray such that the first and last elements of the subar...

Coding & Algorithms
6
0
55 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Software Engineer

Solve common array/string/linked-list tasks

You may be asked one or more of the following independent coding tasks. For each task, implement an efficient algorithm and clearly state time/space c...

Coding & Algorithms
8
0
65 people solved
Oct 21, 2025
Otter.Ai logo
Otter.Ai
Easy
Software Engineer AI Locked

Validate Password Against Multiple Rules

This question evaluates string processing and input validation skills, specifically character-class checks, frequency constraints, and enforcement of ...

Coding & Algorithms
4
0
56 people solved
Jan 2, 2026
Google logo
Google
Hard
Machine Learning Engineer

List regularization methods and trade-offs

Question: Compare Regularization Techniques and When to Use Them Context: You are interviewing for a machine learning engineering role and are asked t...

Machine LearningML FundamentalsNeural Networks & Training
20
0
177 people solved
Sep 6, 2025
Capital One logo
Capital One
Medium
Data Scientist

Estimate Venmo Revenue and Boost User Engagement Metrics

Estimate Venmo Revenue and Boost User Engagement Metrics Growth and Monetization Case: Venmo (Peer-to-Peer Payments) Context You are evaluating growth...

Analytics & Experimentation
7
0
61 people solved
Aug 4, 2025
Uber logo
Uber
Hard
Software Engineer

Find cheapest flight with at most K stops

Problem You are given a directed weighted graph representing flights between cities. Inputs - An integer n: number of cities, labeled 0..n-1. - A list...

Coding & AlgorithmsGraphs
9
0
90 people solved
Dec 25, 2025
Walmart Labs logo
Walmart Labs
Hard
Software Engineer

Shortest Talent-Covering Team Starting At Each Index

There are n students in a line. Each student has exactly one talent represented by an integer from 1 to talentsCount. A valid team is a contiguous sub...

Coding & Algorithms
4
0
33 people solved
Apr 6, 2026
Google logo
Google
Hard
Software Engineer

Design a prioritized log manager with eviction

Design a prioritized log manager with eviction Design a Log Store with Priority- and Recency-Aware Eviction Context You are designing an in-memory (or...

System DesignData Structure DesignHeaps & Priority Queues
10
0
102 people solved
Aug 1, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Implement inventory allocation with backorders

Implement inventory allocation with backorders Design and implement a function to process an event stream for an e-commerce marketplace. Input: ( 1) i...

Coding & Algorithms
2
0
50 people solved
Jul 17, 2025
Uber logo
Uber
Medium
Frontend Engineer

Design a Scalable Calendar Service

Design an online calendar service (think Google Calendar) that supports both individual and shared calendars. Users must be able to create, update, de...

System DesignState ManagementSystem Design Fundamentals
15
0
111 people solved
May 4, 2026
J.P. Morgan logo
J.P. Morgan
Easy
Software Engineer Locked

Design a course registration system

This question evaluates a candidate's ability to design scalable, strongly-consistent, and concurrent systems, testing skills in distributed systems, ...

System DesignSystem Design FundamentalsConsistency & Availability
11
0
94 people solved
Jan 22, 2026
Meta logo
Meta
Medium
Data Scientist

Define Success Metrics for Euro-Chat Customer-Service Chatbot

Success Metrics for the Euro-Chat Customer-Service Chatbot An e-commerce company deploys a customer-service chatbot called euro-chat to handle B2C sup...

Analytics & Experimentation
21
0
67 people solved
Jul 12, 2025
Capital One logo
Capital One
Medium
Data Scientist

Evaluate Factors Before Renewing TV-Series Contracts

TV-Series Renewal and Divestiture Analysis You are advising a CEO on whether to renew a two-year contract for two TV series: - The Analyst (Series A) ...

Analytics & ExperimentationBusiness Case AnalysisGrowth & Monetization
68
0
199 people solved
Jul 12, 2025
Capital One logo
Capital One
Medium
Data Scientist Locked

Design ML deployment with GitHub and Jenkins

Design an end-to-end deployment pipeline for a prediction model, taking it from a GitHub commit through Jenkins CI/CD to a monitored production servic...

Machine Learning
5
0
58 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer

Convert 32-bit integer to hexadecimal

Problem Given a 32-bit signed integer num, return its hexadecimal representation as a string. Requirements - Use lowercase letters a-f. - Do not inclu...

Coding & Algorithms
2
0
41 people solved
Dec 15, 2025
Uber logo
Uber
Medium
Machine Learning Engineer

Design room progression with leaderboard

Design a data structure to simulate a sequence of rooms where players solve tasks and can move only to the next room once finished. Support the follow...

Coding & AlgorithmsHeaps & Priority QueuesData Structure Design
18
0
150 people solved
Sep 6, 2025
LinkedIn logo
LinkedIn
Hard
Data Scientist Locked

How to diagnose traffic and measure relevance?

This question evaluates a data scientist's skills in traffic diagnostics, instrumentation validation, user-path and navigation analysis, causal reason...

Analytics & Experimentation
3
0
66 people solved
Jan 21, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Define a Git workflow for CI

Define a Git workflow for CI Design a Git Branching and Release Strategy for a Graphics Testing Repository Context You are designing the source contro...

Software Engineering FundamentalsCI/CD & DeploymentTesting & Quality
7
0
92 people solved
Aug 9, 2025
Meta logo
Meta
Medium
Product Manager

Apply GenAI to Business Messaging

Product Strategy Prompt: Apply GenAI to Enterprise Business Messaging Explain what generative AI is and how you would apply it to an enterprise busine...

Product Design & Strategy
4
0
80 people solved
Jul 1, 2025
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