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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
Temporal logo
Temporal
Medium
Software Engineer Locked

Implement Concurrent Any-True Shot

This question evaluates proficiency in concurrent programming, focusing on coordination, synchronization, early termination, and best-effort cancellat...

Coding & AlgorithmsConcurrency
6
0
108 people solved
Apr 3, 2026
Netflix logo
Netflix
Medium
Software Engineer Locked

Reason About a Movie Billboard Rotation Component

Recover the missing contract for a movie billboard rotation component before designing its behavior around two ordered maps rather than a heap. Explai...

Software Engineering Fundamentals
5
0
64 people solved
Jun 24, 2026
Amazon logo
Amazon
Medium
Software Engineer

Explain What You Want in Your Next Role

What are you looking for in your next role, and why this company? Constraints & Assumptions Use a real example and distinguish your contribution from ...

Behavioral & LeadershipMotivation & Fit
1
0
11 people solved
Sep 14, 2026
Amazon logo
Amazon
Medium
Software EngineerIntern

Explain conflict, ownership, and AI use

Question Prepare structured answers for an Amazon-style behavioral interview (intern / early-career software engineer) that probes leadership-principl...

Behavioral & LeadershipConflict & CollaborationOwnership & Execution
33
0
244 people solved
Feb 15, 2026
Google logo
Google
Medium
Software EngineerNew Grad Locked

Find the Most Frequent IP Addresses in a File Too Large for Memory

Design an exact, bounded-memory method for finding the most frequent IP addresses in a file far larger than RAM. Analyze memory and disk-I/O trade-off...

Software Engineering FundamentalsSorting
11
0
90 people solved
Jun 17, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Explain Your Engineering Ownership

You are on an initial technical screening call for a Software Engineer role. Despite being an early-stage "recruiter" screen, it is unusually technica...

Behavioral & LeadershipProject Deep DiveReact & UI Frameworks
15
0
190 people solved
Apr 4, 2026
Headway logo
Headway
Medium
Software EngineerSenior+ Locked

Design a Rental Search and Booking Platform from Startup to Scale

Design a short-term rental search and booking platform that can evolve from a startup architecture to large-scale traffic. Balance fast, possibly stal...

System Design
14
0
103 people solved
Jun 15, 2026
OpenAI logo
OpenAI
Medium
Data ScientistSenior+

Write SQL for post-trial conversion cohorts

Using the schema below, write SQL to compute, for users first exposed between 2025‑06‑01 and 2025‑06‑30 (inclusive), the intent‑to‑treat paid conversi...

Data Manipulation (SQL/Python)SQLExperiment Analysis & Readout
9
0
130 people solved
Oct 13, 2025
Google logo
Google
Medium
Software Engineer Locked

Find a Horizontal Cut That Bisects Rectangle Area

Solve a computational-geometry problem that asks for the horizontal line dividing the combined area of many disjoint rectangles in half. The exercise ...

Coding & AlgorithmsBinary SearchMath & Number Theory
25
2
195 people solved
Jun 4, 2026
Okta logo
Okta
Medium
Frontend EngineerSenior+ Locked

Design High-Throughput Messaging Infrastructure

This question evaluates understanding of high-throughput messaging infrastructure, including database optimization strategies, message queue architect...

System Design
7
0
89 people solved
May 15, 2026
Voleon logo
Voleon
Medium
Quantitative Researcher

Plane Tangent Vectors from Coplanar 3D Points via SVD, With and Without Gaussian Noise

You are given $N$ points $p_1, \dots, p_N$ in three-dimensional space and told that they all lie on one plane. Find tangent vectors of the plane, that...

Statistics & MathSampling & EstimationUnsupervised Learning
3
0
41 people solved
Oct 31, 2025
Karat logo
Karat
Medium
Software Engineer

Join tables to map userId to name

Problem You are given three tables represented as 2D string arrays (each row is a record, no headers). You need to produce a mapping from userId → cus...

Coding & Algorithms
8
0
115 people solved
Jan 22, 2026
Figma logo
Figma
Easy
Software Engineer Locked

Implement Memory-Efficient Document Undo/Redo

This question evaluates data structure design and algorithmic reasoning for implementing memory-efficient undo/redo semantics on a key-value document,...

Coding & AlgorithmsData Structure DesignArrays & Strings
19
0
149 people solved
Jan 12, 2026
Stripe logo
Stripe
Medium
Software Engineer

Implement tiered shipping calculator

Implement tiered shipping calculator Implement in JavaScript a shipping-cost calculator with three progressively richer pricing models based on a conf...

Coding & Algorithms
20
0
180 people solved
Jul 17, 2025
Serval logo
Serval
Medium
Software Engineer Locked

Find Shared Motion Periods Across Camera Streams

Convert thresholded camera readings into closed active periods, then report the periods shared by every stream. Account for isolated readings, timesta...

Coding & Algorithms
3
0
51 people solved
Jul 12, 2026
Ramp logo
Ramp
Hard
Software Engineer

Find final URL by crawling until “congrats”

You are given a starting HTTP URL. Implement a function that repeatedly calls URLs returned by previous responses until you reach a response that indi...

Coding & AlgorithmsAPI Integration & HTTP Clients
67
0
485 people solved
Feb 4, 2026
Snowflake logo
Snowflake
Hard
Software Engineer

Design transactional in-memory key-value store

Problem Design and implement an in-memory key–value store that supports basic operations plus transactions. Core API Implement the following operation...

Coding & AlgorithmsData Structure DesignConcurrency
50
0
417 people solved
Nov 4, 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
36
0
278 people solved
Mar 1, 2026
Waymo logo
Waymo
Easy
Data Scientist

Compare two rare-event detection models statistically

You are evaluating two models (Model A and Model B) for rare-event detection (e.g., fraud, abuse, medical adverse event). Positives are extremely rare...

Machine LearningHypothesis TestingModel Evaluation
77
1
690 people solved
Jan 17, 2026
Verkada logo
Verkada
Medium
Software Engineer

Design Camera Health Monitoring

Design a system that monitors the health of 10 million cameras and continuously reports, in near real time, how many devices are healthy and how many ...

System DesignObservabilityReal-Time Systems
41
0
454 people solved
Apr 2, 2026
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