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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
ByteDance logo
ByteDance
Medium
Product Manager

Improve hotel check-in and check-out

You are interviewing for a Product Manager product case. Work through this prompt in a structured way: Imagine you are the Product Manager for a hotel...

Product Design & Strategy
4
0
47 people solved
Aug 14, 2023
Tencent logo
Tencent
Easy
Software Engineer

Predict a Student's Major from Course Grades

Predict a Student's Major from Course Grades You receive records of courses and grades taken by each student across academic years. Design a model tha...

Machine Learning
1
0
16 people solved
May 29, 2019
ByteDance logo
ByteDance
Hard
Software Engineer

Tell Me About a Challenge You Faced at Work and How You Worked Through It

Tell me about a challenge you faced and how you handled it. This was the one behavioral question in a one-hour technical phone screen for a software e...

Behavioral & LeadershipOwnership & Execution
1
0
13 people solved
Sep 23, 2026
Cohere logo
Cohere
Medium
Machine Learning Engineer Locked

Defend Your Own Research Paper: Experimental Setup, Practicality and Later Work

A research paper round where you present your own published paper to an interviewer who already knows it and questions its weaknesses. Prepare to judg...

Machine LearningProject Deep DiveModel Evaluation
4
0
34 people solved
Sep 22, 2026
Medium
Software Engineer Locked

Batch Concurrent Logs into Five-Second Windows

Batch concurrent logs into half-open five-second processing-time windows with atomic rotation, a single ordered emitter, late-timer handling, and expl...

Software Engineering FundamentalsConcurrencyLow-Level Design (OOP)
1
0
16 people solved
Sep 16, 2026
AMD logo
AMD
Medium
Software Engineer Locked

Explain How You Learn New Technical Topics

Explain a practical technical-learning process through a defined knowledge gap, authoritative sources, small experiments, feedback, and verification b...

Behavioral & Leadership
1
0
17 people solved
Sep 14, 2026
Goldman Sachs logo
Goldman Sachs
Easy
Software Engineer Locked

Cache Trade-offs and a Constant-Time Least-Recently-Used Cache

A two-part caching exercise: discuss the trade-offs of placing a cache in front of a slower data source, then implement a fixed-capacity least-recentl...

Software Engineering FundamentalsData Structure DesignCaching
2
0
35 people solved
Sep 13, 2026
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Explain a Project's Implementation and Design Decisions

Explain a past project through its implementation path, design tradeoffs, failure handling, validation evidence, personal contribution, and limits.

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
2
0
25 people solved
Sep 9, 2026
Amazon logo
Amazon
Medium
Applied Scientist Locked

Respond to an Aggressive Stakeholder Proposal

Respond to an aggressive client or stakeholder proposal by clarifying goals, testing concerns, comparing alternatives, and following through on the de...

Behavioral & LeadershipCommunication & StakeholdersConflict & Collaboration
1
0
22 people solved
Sep 5, 2026
Scribd logo
Scribd
Medium
Software Engineer Locked

Behavioral: Reason for Leaving, Proudest Project, Handling Ambiguity, and a Trade-off

A behavioral interview question set for a software engineer covering why you are leaving your current company, the project you are most proud of, the ...

Behavioral & LeadershipProject Deep DiveAmbiguity & Decision Making
0
0
12 people solved
Sep 4, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Explain the Design of a Recent Feature

Explain a recent feature through its user need, architecture, data flow, implementation tradeoffs, validation, and your own engineering contribution.

Software Engineering FundamentalsProject Deep DiveSystem Design Fundamentals
3
0
33 people solved
Aug 31, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Design a Dictionary for Heterogeneous Key and Value Types

Design a heterogeneous dictionary with explicit type-aware equality, hashing, collision resolution, variable-length ownership, resizing, and persisten...

Software Engineering FundamentalsData Structure DesignMemory Management
1
0
19 people solved
Aug 30, 2026
Instacart logo
Instacart
Medium
Software Engineer Locked

Respond to Negative Feedback About Your Work

Answer a negative-feedback interview question with a concrete example, thoughtful investigation, practical follow-through, evidence of change, and ref...

Behavioral & LeadershipSelf-Awareness & Growth
2
0
29 people solved
Aug 28, 2026
Gong logo
Gong
Medium
Software EngineerSenior+

Driving a Project Forward When Goals and Requirements Are Ambiguous

Tell the interviewer about a project or role in which the goal, the requirements, the ownership or the path forward was unclear, and walk through how ...

Behavioral & LeadershipAmbiguity & Decision MakingOwnership & Execution
1
0
8 people solved
Aug 25, 2026
Pinduoduo logo
Pinduoduo
Hard
Software EngineerSenior+ Locked

Explain Employer Interest and Next-Role Priorities

Explain interest in a prospective employer and priorities for a next role using verified information, explicit trade-offs, and targeted questions abou...

Behavioral & LeadershipMotivation & Fit
0
0
18 people solved
Aug 22, 2026
Pinduoduo logo
Pinduoduo
Hard
Software EngineerSenior+ Locked

Discuss Performance Feedback and Promotion Readiness

Answer performance, manager-feedback, and promotion questions with evidence, clear uncertainty, and an actionable account of broader-role readiness.

Behavioral & LeadershipMotivation & FitFailure & Learning
2
0
22 people solved
Aug 22, 2026
C3 AI logo
C3 AI
Hard
Data Scientist Locked

Compare PCA and Autoencoders Under the Curse of Dimensionality

Compare PCA and autoencoders through the curse of dimensionality. Cover sparse neighborhoods, linear versus nonlinear compression, leakage-safe evalua...

Machine Learning
1
0
24 people solved
Aug 21, 2026
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Connect Technical Work to Business Impact

Connect one technical project to a concrete user, operating, or business outcome rather than stopping at implementation output. Define the baseline an...

Behavioral & Leadership
1
0
19 people solved
Aug 21, 2026
Amazon logo
Amazon
Easy
Software Engineer Locked

Deliver Under a Tight Deadline Without Hiding Risk

Describe delivering an important engineering result under a tight deadline by explaining scope decisions, surfaced risks, constraints, and what ultima...

Behavioral & Leadership
6
0
46 people solved
Aug 19, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Find and Fix the Root Cause of a Problem

Describe how you found and fixed a problem's root cause by tracing symptoms through competing hypotheses and evidence to the causal chain, recovery pr...

Behavioral & Leadership
1
0
23 people solved
Aug 16, 2026
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