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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
Zscaler logo
Zscaler
Medium
Software EngineerSenior+ Locked

Reason About Remote Browser Isolation and Secure Media Delivery

Compare remote browser isolation, Zero Trust access, and VPN connectivity, then design secure delivery for large blobs and partially playable media. K...

Software Engineering Fundamentals
2
0
38 people solved
Jul 30, 2026
Amazon logo
Amazon
Easy
Data Scientist

Solve two string DP/hash problems

Solve the following two coding questions. 1) Unique Morse Code Transformations You are given an array of strings words (lowercase English letters). Us...

Coding & AlgorithmsBacktracking & Recursion
96
0
730 people solved
Feb 13, 2026
Uber logo
Uber
Medium
Data ScientistNew Grad Locked

Compute CDF from a PDF Function

This question evaluates a candidate's skills in numerical integration, applied numerical methods, and probability/statistics by requiring construction...

Coding & Algorithms
6
0
76 people solved
Apr 30, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Search a Unix-Like File Tree with Composable Filters

Problem Search an in-memory Unix-like file tree from a given directory. Return every physical file whose name contains a query string and whose size i...

Coding & Algorithms
3
0
51 people solved
Mar 12, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft

Medium
Software Engineer

Return All Sales in Each Product’s Earliest Year

Problem For each product_id, find the first year present in Sales and return every sales entry for that product in that year. Output product_id, first...

Data Manipulation (SQL/Python)SQL
0
0
6 people solved
Bloomberg logo
BloombergGoogle
Medium
Software Engineer

Count Ordered Equal-Distance Point Triples

Count Ordered Equal-Distance Point Triples You are given distinct points in the plane. Count ordered triples of distinct point indices (i,j,k) for whi...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
0
0
5 people solved
Microsoft logo
MicrosoftGoogleAmazon

Also asked at Amazon, Meta, Bloomberg

Medium
Software Engineer

Compute the Chance of Finishing below a Score Limit

Problem Start at 0 points. While the score is below k, independently draw a uniformly random integer from 1 through maxPts and add it. Stop as soon as...

Coding & AlgorithmsDynamic ProgrammingProbability
1
0
10 people solved
DoorDash logo
DoorDash
Medium
Product Manager

Design what Ticketmaster buyers experience after checkout, from confirmation to event day

You are asked to design the post-checkout experience for Ticketmaster: everything a buyer sees and can do once a ticket purchase is confirmed. Explain...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
14 people solved
Jun 1, 2026
Mercor logo
Mercor
Medium
Machine Learning Engineer Locked

Review a Compact GPT-Style Transformer Implementation

Review a compact decoder-only Transformer by tracing tensor shapes through causal multi-head attention, shifted next-token loss, and autoregressive ge...

Machine LearningTransformers & AttentionML Coding
12
0
168 people solved
Jul 8, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Design a prompt-sharing platform

This question evaluates system design competencies including product and backend architecture, data modeling and indexing, permission and sharing mode...

System DesignSystem Design FundamentalsAuthentication & Authorization
31
0
323 people solved
Oct 19, 2025
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Implement a Batch Image Processor

This question evaluates a candidate's competency in image processing operations and parallel/concurrent programming, covering basic transformations (g...

Coding & AlgorithmsConcurrencyFile & Media Storage
31
0
237 people solved
Apr 1, 2026
Microsoft logo
Microsoft
Medium
Site Reliability EngineerSenior+

On-call behavioral: judging severity, escalating, and tracing an issue to a recent change

These two prompts come from a senior engineering loop for a team that keeps a large live service healthy. Both are behavioral: answer from your own ex...

Behavioral & LeadershipReliability & SRECI/CD & Deployment
1
0
16 people solved
Jul 30, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+

Going Above and Beyond for a Customer and Refusing to Lower the Quality Bar

This behavioral round focuses on customers: how far you go to solve a customer's problem, and whether you hold the line on quality when letting it sli...

Behavioral & LeadershipOwnership & Execution
1
0
11 people solved
Jun 19, 2026
Snapchat logo
Snapchat
Medium
Machine Learning Engineer

Determine Whether Courses Can Be Completed

You are given an integer numCourses, representing courses labeled from 0 to numCourses - 1, and a list prerequisites. Each prerequisite is a pair [cou...

Coding & Algorithms
3
0
37 people solved
Apr 29, 2026
Atlassian logo
Atlassian
Medium
Product Manager

Design an Immersive Virtual Workplace for Hybrid Team Collaboration and Office Coordination

Design a metaverse product for the workplace: a shared virtual environment that helps a company manage its office and lets employees collaborate insid...

Product Design & StrategyProduct SenseMetrics & KPIs
1
0
9 people solved
Aug 1, 2026
Shopify logo
Shopify
Hard
Software Engineer

Design a rare-book lending and returns system

Design a rare-book lending and returns system System Design: Rare Books Circulation Across Multiple Branches Context Design a system to manage borrowi...

System DesignSystem Design FundamentalsDistributed Transactions & Idempotency
140
0
1001 people solved
Jul 16, 2025
Anthropic logo
Anthropic
Hard
Software Engineer

Design a scalable, reliable system

System Design: Global Photo/Video File Storage and Sharing ("CloudDrive") Context Design a scalable, highly reliable consumer service where users uplo...

System DesignFile & Media StorageStorage & Sharding
47
0
463 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Product Manager

Root-Cause a 10% Decline in Amazon Website Users and Plan the Response

You are a product manager at Amazon. The team has just reported that the number of users on an Amazon website is down 10%. Explain how you would work ...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
1
0
13 people solved
Apr 20, 2026
Apple logo
Apple
Medium
Data Scientist

Explain Your Motivation and Alignment with Apple Values

Explain Your Motivation and Alignment with Apple Values Behavioral Interview — Motivation and Values (Apple, Data Scientist) Prompt Why do you want to...

Behavioral & LeadershipMotivation & Fit
21
0
175 people solved
Aug 4, 2025
TikTok logo
TikTok
Medium
Software Engineer

Implement a match-3 board resolver

Question Implement a match-3 board resolver (the core loop of a "candy crush"-style game). You are given an m×n grid of cells. Each cell holds a value...

Coding & Algorithms
12
0
155 people solved
Jul 29, 2025
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