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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
Nielsen logo
Nielsen
Medium
Software EngineerSenior+

Behavioral: Walk Through the Project You Are Most Proud Of

In a behavioral interview for a senior software engineering role, the interviewer asks which project you are most proud of. The question sounds open, ...

Behavioral & LeadershipProject Deep Dive
1
0
9 people solved
May 4, 2026
Airtable logo
Airtable
Medium
Software Engineer Locked

Implement undo/redo with two stacks

This question evaluates a candidate's ability to design and implement efficient mutable state management and history tracking using data structures (s...

Coding & AlgorithmsData Structure DesignStacks & Queues
13
0
258 people solved
Jan 22, 2026
Oracle logo
Oracle
Medium
Software Engineer

Leadership and ownership: real examples of leading others and owning an outcome

In the hiring manager round, the behavioral questions focused on leadership and ownership, and the interviewer expected real examples rather than gene...

Behavioral & LeadershipLeadership & InfluenceOwnership & Execution
0
0
12 people solved
Aug 1, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Implement cloud storage with quotas and compression

Problem Implement an in-memory cloud storage service that supports multiple users, per-user storage quotas, changing quotas with eviction, and file co...

Coding & AlgorithmsData Structure Design
33
0
316 people solved
Dec 25, 2025
Hebbia logo
Hebbia
Medium
Software Engineer

Implement a Cache Snapshot Printer

Implement an LRU-style cache and a snapshot-printing feature. The cache stores key-value pairs and has a fixed capacity. It should support normal cach...

Coding & Algorithms
5
0
59 people solved
Feb 6, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Describe model-to-GPU execution pipeline

Describe model-to-GPU execution pipeline From Model Definition to GPU Execution: Pipeline and Optimizations You are asked to explain the end-to-end pa...

ML System DesignGPU Programming
10
0
141 people solved
Jul 31, 2025
Apple logo
Apple
Medium
Software Engineer Locked

Convert a Roman Numeral to an Integer

This question evaluates a candidate's ability to parse string input and apply conditional arithmetic logic to convert Roman numerals into integers. It...

Coding & Algorithms
6
0
81 people solved
Jun 30, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Explain Why You Are Considering a Job Change

Shape a concise, truthful answer to why you are considering a job change. Connect a durable motivation and one concrete fact from your current experie...

Behavioral & Leadership
2
0
36 people solved
May 29, 2026
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Design a URL Shortener

This question evaluates a candidate's ability to design a scalable, highly available URL-shortening service, testing competencies in API design, short...

System Design
10
0
75 people solved
Mar 20, 2026
TikTok logo
TikTok
Medium
Software Engineer

Compute length of longest increasing subsequence

You are given an integer array nums of length n. A subsequence of nums is a sequence that can be derived from nums by deleting zero or more elements w...

Coding & AlgorithmsDynamic ProgrammingBinary Search
14
0
137 people solved
Dec 10, 2025
Capital One logo
Capital One
Medium
Business AnalystSenior+

Build and evaluate donation propensity model

You need a model to maximize expected net revenue from solicitations. Costs: online reach costs $1 per person; gala attendance costs $100 per attendee...

Machine Learning
8
0
98 people solved
Oct 13, 2025
Nextdoor logo
Nextdoor
Medium
Software Engineer Locked

Design a Job Scheduler That Can Scale by 100 Times

Design a job scheduler that initially serves a small workload but must later handle 100 times as many jobs. Connect requirements and APIs to data mode...

System Design
12
0
99 people solved
Aug 3, 2026
Chime logo
Chime
Medium
Backend Engineer Locked

Design browser history across tabs

This question evaluates a candidate's ability to design stateful data structures and manage per-tab navigation history, testing competencies in data s...

Software Engineering FundamentalsData Structure DesignLinked Lists
6
0
115 people solved
Feb 26, 2026
American Express logo
American Express
Medium
Product Manager

Choosing a Primary Metric and Guardrails for YouTube's Home Feed

You are the product manager responsible for YouTube's homepage: the personalized feed of recommended videos people see when they open YouTube. Which m...

Analytics & ExperimentationMetrics & KPIs
0
0
5 people solved
Nov 6, 2025
Google logo
Google
Medium
Product Manager

Z-tests versus t-tests: how each works and when to use it in experiments

Explain what a z-test and a t-test are, and how you decide which one to use. `hint Compare what each test assumes Write the two test statistics side b...

Analytics & ExperimentationHypothesis Testing
0
0
8 people solved
Mar 9, 2026
Two Sigma logo
Two Sigma
Hard
Data Scientist Locked

Why Use a t-Statistic?

This question evaluates understanding of the t-statistic as a standardized measure for testing whether an estimated effect differs from zero, covering...

Statistics & MathHypothesis Testing
10
0
169 people solved
Mar 18, 2026
Meta logo
Meta
Medium
Product Manager

Facebook Feed Test: Which Metrics Move When Users See More Posts per Day

You are the product manager for Facebook's News Feed, and your goal is to raise the number of posts each user views per day. The company tests the cha...

Analytics & ExperimentationMetrics & KPIsExperiment Analysis & Readout
0
0
7 people solved
Mar 29, 2026
Google logo
Google
Hard
Product Manager

Google Strategic Foresight

Product Strategy Case: Threats and Technology Trends for Google You are presenting to a product leader audience. Be explicit about assumptions and use...

Product / Decision MakingProduct StrategyMarket & Competitive Analysis
28
0
170 people solved
Jul 4, 2025
LinkedIn logo
LinkedIn
Medium
Data Scientist

Identify Top Contributors by Recent Post Count

posts +----+---------+---------------------+ | id | user_id | created_at | +----+---------+---------------------+ | 1 | 101 | 2023-09-01...

Data Manipulation (SQL/Python)
66
0
62 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

YouTube Live Monetization: A New Way for Viewers to Pay Streaming Creators

You are a product manager at YouTube. Creators who stream live want to earn more from their streams. Design a payments feature that helps them do so. ...

Product Design & StrategyGrowth & MonetizationProduct Design & Improvement
0
0
10 people solved
Sep 13, 2026
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