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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
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Fewest Moves to Collect Every Key in a Grid With Locked Cells

You are given a rectangular grid as a list of equal-length strings. Each character is one of: - '@': the starting cell (there is exactly one); apart f...

Coding & AlgorithmsGraphsGrids & Matrices
1
0
14 people solved
Jun 16, 2026
MathWorks logo
MathWorks
Easy
Software Engineer

Minimize shortest path by adding weight-1 edges

You are given a weighted directed graph with nodes labeled 1..n. The existing edges are described by three arrays of equal length m: - from[i]: start ...

Coding & Algorithms
6
0
91 people solved
Mar 1, 2026
Uber logo
Uber
Medium
Software Engineer Locked

Reconstruct the Alphabet Order of an Alien Language

This question tests graph construction and topological sorting, core algorithmic skills for reasoning about partial orderings derived from constraints...

Coding & Algorithms
3
0
25 people solved
Jun 8, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Estimate VRAM and compare model parallelism

This question evaluates understanding of GPU memory budgeting for large matrix multiplications and the comparative trade-offs between pipeline and ten...

ML System DesignNeural Networks & Training
40
0
327 people solved
Nov 19, 2025
eBay logo
eBay
Medium
Software Engineer Locked

Compute the Wait for a Warmer Day

For each daily temperature, compute how many days pass before a strictly warmer value appears, returning zero wherever no later warmer day exists.

Coding & Algorithms
4
0
43 people solved
Aug 5, 2026
Netflix logo
Netflix
Hard
Software Engineer

Model advertiser intake database schema

Model advertiser intake database schema Advertiser Intake and Campaign Data Model (F1-style) Context You are designing a multi-tenant advertiser intak...

System DesignSystem Design FundamentalsStorage & Sharding
26
0
383 people solved
Jul 17, 2025
Uber logo
Uber
Medium
Software EngineerSenior+

Aligning Two Teams with Conflicting Priorities and Learning from a Mistake

This behavioral round for a senior role focuses on working across team boundaries and on how you grow from your own mistakes. Answer both prompts with...

Behavioral & LeadershipLeadership & InfluenceFailure & Learning
1
0
11 people solved
May 13, 2026
Amazon logo
AmazonMetaGEP
Easy
Software Engineer

Letters Appearing in Both Cases

Letters Appearing in Both Cases Given a string word, call an English letter special when both its lowercase form and its uppercase form occur somewher...

Coding & AlgorithmsArrays & Strings
0
0
7 people solved
Google logo
Google
Hard
Software Engineer Locked

Compute minimax grid path and network delay

This question evaluates algorithmic problem-solving in shortest-path and path-optimization contexts, specifically minimax pathfinding on a grid and si...

Coding & AlgorithmsGraphsBinary Search
25
0
303 people solved
Jan 22, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Check Whether a Proposed Course Order Respects Every Prerequisite

Courses are numbered 0 to n - 1, and some courses must be taken before others. Given a proposed order of courses, decide whether it is a valid order i...

Coding & AlgorithmsGraphs
2
0
22 people solved
Apr 28, 2026
Bridgewater logo
Bridgewater
Medium
Software Engineer Locked

Defend the Technical Details of a Project

Defend one project through a focused technical deep dive into its problem, architecture, request or data flow, and hardest implementation choices. Exp...

Behavioral & Leadership
2
0
38 people solved
Jul 8, 2026
Coinbase logo
Coinbase
Hard
Software Engineer

Maximize block fee with transaction selection

You are given N transactions. Each transaction has: - id (unique identifier) - size (positive integer) - fee (positive integer) You are building a blo...

Coding & AlgorithmsGreedy
37
0
402 people solved
Feb 13, 2026
Meta logo
Meta
Medium
Data Scientist

Estimate ads ranking revenue impact

You are the data scientist for an ads ranking team at a large social platform. The team has built a new ranking algorithm for feed ads. The new model ...

Analytics & ExperimentationExperiment Analysis & ReadoutExperiment Design (A/B Testing)
59
0
400 people solved
Apr 30, 2026
Yahoo logo
Yahoo
Easy
Data ScientistSenior+

Publisher CTR with App vs Web Split Compared to the Unweighted Publisher Average

A news portal records daily traffic for every article it shows on its homepage feed, and each article belongs to a publisher. Build a publisher-level ...

Data Manipulation (SQL/Python)SQL
0
0
3 people solved
Sep 6, 2026
Uber logo
Uber
Hard
Software Engineer

Check if each prefix forms 1..k permutation

You are given an integer array arr of length n that is a permutation of the numbers 1..n (each number appears exactly once), but in arbitrary order. F...

Coding & AlgorithmsArrays & Strings
29
0
302 people solved
Feb 11, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design a fullstack app with frontend focus

Design a fullstack app with frontend focus Design a Full‑Stack Web Application (Frontend Emphasis) Context You are given a 2–3 page requirements docum...

System DesignReact & UI FrameworksAPI Design
25
0
204 people solved
Jul 27, 2025
Axon logo
Axon
Medium
Software Engineer

Explain scope and impact under pressure

Behavioral prompt (pressure-style) An interviewer repeatedly interrupts and challenges you to be precise. 1. Tell me about a project you led. 2. For e...

Behavioral & LeadershipProject Deep Dive
41
0
310 people solved
Mar 1, 2026
Amazon logo
Amazon
Medium
Data Scientist

Retrieve First Active and Last Inactive Dates per User

Given a table activity that tracks user activities, write a SQL query to retrieve the first active date and last inactive date for each user. Table Sc...

Data Manipulation (SQL/Python)SQL
193
9
446 people solved
Aug 4, 2025
eBay logo
eBay
Medium
Software Engineer

Explain React Rendering and How You Fixed a Re-render Problem

Besides the coding question, the interview covered your relevant frontend work experience, with a focus on React rendering. Choose a React application...

Software Engineering FundamentalsReact & UI FrameworksWeb Performance
1
0
15 people solved
May 8, 2026
Electronic Arts logo
Electronic Arts
Hard
Software Engineer

Merge Accounts by Shared Email

Merge Accounts by Shared Email Each account record begins with a person's name followed by one or more email addresses. Two records belong to the same...

Coding & Algorithms
3
0
39 people solved
Apr 30, 2026
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