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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
Disney logo
Disney
Medium
Product Manager

Cold-Start Personalization for New Disney+ Subscribers

You are a product manager on Disney+. Recommendations normally lean on what a subscriber has already watched, but someone who signed up today has watc...

Product Design & StrategyProduct Design & ImprovementPersonalization
0
0
12 people solved
Aug 2, 2025
Google logo
Google
Medium
Product Manager

Gemini Competitive Strategy: Finding a Defensible Edge Over Rival AI Assistants

You are a product manager on Gemini. How should Google set Gemini apart from rival AI assistants, and how would you position it in the market? `hint W...

Product Design & StrategyMarket & Competitive AnalysisProduct Strategy
0
0
8 people solved
Jun 12, 2026
WeRide logo
WeRide
Medium
Software EngineerIntern Locked

Validate Bracket Sequence

This question evaluates proficiency with stack data structures, string parsing and matching logic, and the ability to reason about algorithmic time an...

Coding & Algorithms
4
0
36 people solved
Apr 2, 2026
Meta logo
Meta
Medium
Software Engineer

Design a real-time ad impression aggregator

Design an ads impression aggregator service with the following requirements: - The system ingests a high-volume stream of impression events (each even...

System Design
6
0
56 people solved
Oct 2, 2025
DoorDash logo
DoorDash
Hard
Software Engineer Locked

Count changed nodes between two menu trees

This question evaluates algorithmic problem-solving with tree data structures, testing competencies in hierarchical diffing, node matching by sibling ...

Coding & AlgorithmsTrees
42
0
353 people solved
Feb 11, 2026
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Merge Accounts by Shared Identifiers

Merge account records that share identifiers and return the consolidated accounts, following the cited accounts-merge problem.

Coding & Algorithms
2
0
24 people solved
Aug 14, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Serialize and deserialize a dictionary trie

Question Design and implement serialization and deserialization for a trie (prefix tree) that stores a large dictionary of lowercase English words. Th...

Coding & AlgorithmsTreesParsing & Interpreters
14
0
202 people solved
Sep 6, 2025
HubSpot logo
HubSpot
Hard
Software Engineer

Design a Netflix-like streaming platform

Question Design a Netflix-like video streaming platform. Viewers must be able to browse and search a catalog, stream titles with adaptive bitrate (ABR...

System DesignFile & Media StorageCaching
28
0
287 people solved
Jul 31, 2025
Uber logo
Uber
Medium
Software Engineer

Design time-versioned KV without timestamp argument

Design a time-versioned key-value store that does not accept a timestamp argument on writes. Support set(key, value) which stores the value with an in...

Coding & AlgorithmsData Structure Design
5
0
98 people solved
Aug 1, 2025
Adobe logo
Adobe
Medium
Product Manager

Gmail Product Strategy: Themes and Sequenced Bets for the Next Three Years

You are the product manager for Gmail. Lay out where you would take the product over the next three years, in the form of a roadmap. `hint Start from ...

Product Design & StrategyRoadmapping & PlanningProduct Strategy
0
0
7 people solved
Mar 15, 2026
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Compute shortest path in cyclic graph

This question evaluates understanding of graph algorithms and shortest-path computation in weighted directed graphs, including handling cycles, non-ne...

Coding & Algorithms
4
0
90 people solved
Jan 3, 2026
Google logo
Google
Hard
Data Scientist

Infer causal impact without an A/B test

Evaluate Impact of a Shipped Version on Disconnections (No A/B Holdout) Context A new client version was shipped system-wide with the goal of reducing...

Statistics & MathCausal InferenceHypothesis Testing
24
0
198 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Medium
Product Manager

Sizing a DoorDash Partnership With Burger King That Demands a Bigger Cut per Order

You are a product manager at DoorDash. Burger King is interested in a partnership with DoorDash, but it wants a higher commission on every transaction...

Product / Decision MakingBusiness Case AnalysisEstimation & Market Sizing
0
0
8 people solved
Jul 6, 2026
Walmart Labs logo
Walmart Labs
Medium
Software Engineer Locked

Compute the Minimum Number of Meeting Rooms

Compute the minimum rooms required for half-open meeting intervals, allowing a new meeting to begin exactly as another ends. This algorithm question t...

Coding & Algorithms
5
0
55 people solved
Jul 17, 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
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
Uber logo
Uber
Medium
Product Manager

Spotify vs. TikTok: Go/No-Go Call on a Short Vertical Video Feed

Spotify is considering a feature centered on short videos, with the aim of competing with TikTok. As the product manager asked to advise on the decisi...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
0
0
6 people solved
Sep 24, 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
ByteDance logo
ByteDance
Hard
Data ScientistNew Grad

How to deploy and tune multimodal models?

Question You are interviewing for a new-grad machine learning / data scientist role at ByteDance. Answer the following related machine-learning and LL...

Machine LearningMLOps & Model ServingEmbeddings & Vector Search
23
0
157 people solved
Jan 10, 2026
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
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