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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
Anduril logo
Anduril
Medium
Software EngineerSenior+ Locked

Maximize Profit From Cutting Rods

This question evaluates algorithmic optimization and discrete cost-benefit analysis, testing skills in integer parameter exploration, profit modeling,...

Coding & Algorithms
15
0
117 people solved
Mar 26, 2026
Capital One logo
Capital One
Medium
Product Manager

Product Improvement: Redesign a Water Bottle for One User Segment

Pick a water bottle and improve it. Decide which kind of bottle and which users you are improving it for, identify what frustrates them about the bott...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
22 people solved
Nov 28, 2025
Amazon logo
AmazonGoogleInfosys

Also asked at Infosys, Meta, Microsoft, Bloomberg

Medium
Software Engineer

Choose the Most Prolific Reviewer and February’s Best-Rated Movie

Problem Return the available component rows in a column named results: first the name of the user who rated the most movies overall, breaking a count ...

Data Manipulation (SQL/Python)SQL
0
0
8 people solved
Lead Bank logo
Lead Bank
Medium
Software Engineer

Implement Stock Price Query APIs

You are given an initial collection of stock price records. Each record contains: - symbol: a stock name or ticker string - timestamp: initially a cal...

Coding & Algorithms
4
0
75 people solved
Apr 1, 2026
ByteDance logo
ByteDance
Medium
Software EngineerNew Grad Locked

Prevent a Cache Stampede on a Hot Key

Design protection against a cache stampede when a hot key expires across many application instances. Compare request coalescing, distributed refresh o...

System Design
4
0
37 people solved
Aug 13, 2026
Pinterest logo
Pinterest
Medium
Data ScientistSenior+

Evaluate Fresh Content and Video Experiments

Pinterest wants to improve the perceived freshness and engagement of the home feed. Answer the following interview questions: 1. Define a practical me...

Analytics & ExperimentationExperiment Analysis & ReadoutExperiment Design (A/B Testing)
40
0
270 people solved
Jan 22, 2026
Asana logo
Asana
Medium
Software Engineer Locked

Design a jigsaw puzzle (OOD)

This question evaluates object-oriented design skills, including class and relationship modeling, state and behavior encapsulation, validation logic, ...

Software Engineering FundamentalsLow-Level Design (OOP)
41
0
288 people solved
Jan 22, 2026
Instacart logo
Instacart
Medium
Software Engineer

Implement timestamped task management system APIs

You are implementing an in-memory Task Management System. All API methods are called with a timestamp representing the logical time when the operation...

Coding & AlgorithmsData Structure Design
33
0
302 people solved
Dec 21, 2025
Google logo
GoogleAmazonBloombergMicrosoft

Also asked at Bloomberg, Microsoft

Medium
Software Engineer

Arrange a Deck for Increasing Reveal-and-Rotate Order

Problem Reorder the unique card values in deck so this procedure reveals them in increasing order: remove and reveal the top card, then move the next ...

Coding & AlgorithmsSimulation & State MachinesStacks & Queues
0
0
10 people solved
Whatnot logo
Whatnot
Medium
Software Engineer Locked

Design an Online Coding Contest Platform

This question evaluates a candidate's ability to design a scalable, secure System Design for an online coding contest platform with emphasis on safely...

System DesignSandboxing & IsolationJob Scheduling & Workflows
13
0
151 people solved
Apr 7, 2026
Google logo
Google
Medium
Product Manager

Grounding, evaluation and bias controls for AI answers in Google Search

You are a product manager responsible for the AI-generated answers that Google Search shows for some queries. How should Google make sure those answer...

Machine LearningAI Product ManagementLLM Applications
0
0
13 people solved
Aug 20, 2026
Apple logo
Apple
Medium
Machine Learning Engineer

Design Apple News without ML

Design an initial search and content-discovery system for a news application similar to Apple News, assuming you do not have a trained ranking model y...

System DesignSearch & Feed SystemsSearch Relevance
13
0
119 people solved
Dec 17, 2025
Apple logo
Apple
Medium
Software EngineerNew Grad

Compare String, StringBuilder, and StringBuffer in Java

Compare String with StringBuilder in Java, including mutability and repeated text construction. Also explain where StringBuffer fits and whether these...

Software Engineering FundamentalsProgramming LanguagesConcurrency
0
0
13 people solved
Mar 14, 2026
Squarepoint logo
Squarepoint
Medium
Software Engineer

Find the Correlation Between Two Die-Face Counts

Find the Correlation Between Two Die-Face Counts A fair six-sided die is rolled independently n times, where n is a fixed positive integer. Let X be t...

Statistics & Math
6
0
77 people solved
Apr 22, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Recover a Project That Has Gone Off Track

Prepare a behavioral interview story about recovering a project that stopped tracking toward its intended outcome. Show the evidence, root cause, pers...

Behavioral & Leadership
2
0
35 people solved
Aug 13, 2026
Atlassian logo
Atlassian
Medium
Machine Learning Engineer Locked

Assign bookings to minimum tennis courts

This question evaluates interval scheduling and resource-allocation competencies, testing algorithmic and data-structure knowledge for handling time-i...

Coding & Algorithms
9
0
85 people solved
Oct 15, 2025
Capital One logo
Capital One
Medium
Software Engineer Locked

Design a mobile banking app backend

This question evaluates a candidate's competency in designing secure, highly available backend architecture for financial services, including API and ...

System DesignPayments & LedgersDistributed Transactions & Idempotency
30
0
377 people solved
Feb 12, 2026
Optiver logo
Optiver
Medium
Software Engineer

Implement price-based order matcher

Design and implement a price-based order matcher for unit-sized orders. You are given an array orders where each element is [type, price]: type = 1 de...

Coding & AlgorithmsHeaps & Priority Queues
73
0
719 people solved
Aug 13, 2025
Robinhood logo
Robinhood
Hard
Software Engineer

Design a Distributed Scheduler with At-Most-Once Runs

Design a distributed background-job scheduler with one-time and recurring jobs, an execution SLA, logs, cancellation, and subscriber notifications. Th...

System DesignJob Scheduling & WorkflowsDistributed Transactions & Idempotency
4
0
52 people solved
Apr 14, 2026
Rippling logo
Rippling
Hard
Software Engineer Locked

Solve listed algorithm problems

This set of problems evaluates algorithmic problem-solving skills across selection and order-statistics, graph algorithms and traversals, connected-co...

Coding & AlgorithmsBinary SearchGraphs
34
0
234 people solved
Feb 12, 2026
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