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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
Amazon logo
Amazon
Easy
Business Intelligence Engineer Locked

Defend an Experiment Decision and Its Incremental Impact

Prepare a deep behavioral story about an A/B test, incremental lift, follow-up experimentation, cross-functional leadership, and a trade-off that can ...

Behavioral & Leadership
4
0
46 people solved
Aug 14, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Make Every Team Member's Voice Heard

Prepare a behavioral example of helping people with different styles, seniority, or viewpoints influence a team decision. Explain how you surfaced qui...

Behavioral & Leadership
4
0
34 people solved
Aug 13, 2026
Weiss Asset Management logo
Weiss Asset Management
Medium
Data Scientist Locked

Evaluate and Monitor a Paid Electricity Price Forecast

Evaluate whether a paid next-week electricity price forecast adds economic value over transparent baselines, then diagnose a five-day accuracy decline...

Analytics & ExperimentationTime Series & ForecastingBusiness Case Analysis
2
0
18 people solved
Aug 12, 2026
Airwallex logo
Airwallex
Medium
Data Scientist Locked

Diagnose a Structural Break in KYC Submission Rate

Diagnose a KYC rate chart with a structural break, gradual decline, and year-end seasonality. Separate tracking, product, policy, and traffic-mix hypo...

Analytics & Experimentation
4
0
38 people solved
Aug 11, 2026
Oracle logo
Oracle
Medium
Backend EngineerSenior+ Locked

Explain How You Use AI in Software Engineering

Explain how you use AI in software engineering through one productive use and one flaw caught during verification, including standards for data handli...

Behavioral & LeadershipAI-Assisted DevelopmentTesting & Quality
1
0
31 people solved
Aug 10, 2026
Oracle logo
Oracle
Medium
Backend EngineerSenior+ Locked

Handle a Tight Deadline You Could Not Meet

Describe a tight deadline you could not meet, focusing on when the risk became clear, how scope and expectations were renegotiated, what shipped, and ...

Behavioral & Leadership
1
0
15 people solved
Aug 10, 2026
Oracle logo
Oracle
Medium
Backend EngineerSenior+ Locked

Design a High-Volume Healthcare Data Ingestion Pipeline

Design a high-volume healthcare ingestion pipeline for sensitive, duplicated, malformed, and versioned partner data, covering validation, replay, faul...

System Design
1
0
19 people solved
Aug 10, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer II Locked

Design a Multimodal Retrieval-Augmented Generation System

Design a multimodal retrieval-augmented generation system with provenance-preserving text and image ingestion, hybrid retrieval, reranking, secure pro...

ML System Design
2
0
31 people solved
Aug 8, 2026
Oracle logo
Oracle
Medium
Software Engineer Locked

Explain What Motivates You at Work

Explain what motivates you at work using concrete conditions and examples, including one factor that reduces motivation and how the pattern relates to...

Behavioral & Leadership
2
0
26 people solved
Aug 7, 2026
Jain Global logo
Jain Global
Medium
Data Engineer Locked

Design an Incremental Rolling-Metrics Data Pipeline

Design a production pipeline for rolling metrics over historical and daily ticker observations, with fast analyst and dashboard reads. The case examin...

System DesignETL & Data PipelinesBatch & Stream Processing
15
1
111 people solved
Aug 3, 2026
Bobyard logo
Bobyard
Medium
Software Engineer Locked

Build Nested Comments from Parent References

Transform flat comments with parent IDs into a validated nested forest, even when children arrive before parents. Build an ID index, detect missing li...

Software Engineering Fundamentals
2
0
38 people solved
Aug 1, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Deliver a Feature Under a Tight Deadline

Tell how you delivered a feature under a real deadline by defining the minimum complete outcome and managing dependencies, scope, and risk. Include st...

Behavioral & Leadership
0
0
14 people solved
Jul 31, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Dive Deep to Find the Root Cause of a Problem

Describe a technical investigation in which the first plausible explanation was incomplete or wrong. Trace the symptoms, competing hypotheses, evidenc...

Behavioral & Leadership
1
0
17 people solved
Jul 31, 2026
Zscaler logo
Zscaler
Medium
Software EngineerSenior+ Locked

Design a Multi-Dimensional Job Rate Limiter

Design a job rate limiter whose admission decision may consume effort, per-user, hourly, and daily quotas at once. Candidates clarify scope and window...

Software Engineering Fundamentals
1
0
26 people solved
Jul 30, 2026
Cognitiv logo
Cognitiv
Hard
Software Engineer Locked

Reason About Duplicate Data and Scaling in Spark

Explain how to define and remove duplicate data in Spark, then scale the pipeline as volume and traffic increase. Candidates must translate business i...

Software Engineering Fundamentals
4
0
52 people solved
Jul 28, 2026
P
Persistence
Medium
Software Engineer Locked

Explain Lazy Loading and Frontend Code Splitting

Explain how lazy loading and code splitting can improve initial responsiveness in a large single-page application without harming later interactions. ...

Software Engineering Fundamentals
1
0
23 people solved
Jul 26, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Design a Durable DAG Workflow for Order Refunds

Design a durable DAG workflow engine for order refunds with versioned definitions, dependency-aware scheduling, parallel steps, and persistent progres...

Software Engineering FundamentalsJob Scheduling & WorkflowsDistributed Transactions & Idempotency
32
0
242 people solved
Jul 10, 2026
eBay logo
eBay
Medium
Product Manager

Getting Paid on eBay: Improving How Sellers Receive Their Sales Proceeds

You are a product manager at eBay working on the seller side of the marketplace. Once an item sells, the seller has to get the money, and leadership w...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
7 people solved
Jul 7, 2026
Shopify logo
Shopify
Medium
Software EngineerSenior+ Locked

Harden a URL-Caching HTTP Service for Production

Plan two safe iterations to harden an in-memory URL-caching HTTP service for production. Cover error boundaries and status codes, privacy-aware teleme...

Software Engineering FundamentalsAPI DesignCaching
14
0
125 people solved
Jul 7, 2026
L
Latitudeai
Medium
Backend EngineerSenior+ Locked

Handle Competing Requests from Colleagues

Prepare a behavioral interview story about handling a colleague's request that conflicts with existing commitments. Show how you assessed urgency, com...

Behavioral & Leadership
1
0
20 people solved
Jul 2, 2026
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