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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
Atlassian logo
Atlassian
Medium
Product Manager

Explain your motivation for joining Atlassian as a product manager

In a product manager interview at Atlassian, the interviewer asks what makes you want to join the company. How would you answer? `hint Make it specifi...

Behavioral & LeadershipMotivation & Fit
0
0
13 people solved
Apr 1, 2026
Adobe logo
Adobe
Medium
Software Engineer

Transform an Array into Its Next Permutation

Problem Rearrange an integer array in place into the next lexicographically greater permutation. If the array is already the greatest permutation of i...

Coding & Algorithms
2
0
41 people solved
Apr 19, 2026
Pinduoduo logo
Pinduoduo
Hard
Software EngineerSenior+ Locked

Count Longest Substrings After Character Replacements

Count the longest substring occurrences that can become one repeated uppercase letter within a replacement budget, counting positions rather than repl...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
2
0
18 people solved
Aug 22, 2026
Jane Street logo
Jane Street
Medium
Quantitative ResearcherIntern

Five Pumpkins Weighed in Every Pair: Find the Total Weight

You have 5 pumpkins. You weigh them two at a time, in every possible pairing, and the scale readings for the ten pairs are: $$21,\ 22,\ 23,\ 24,\ 25,\...

Software Engineering Fundamentals
12
1
138 people solved
Aug 28, 2025
ByteDance logo
ByteDance
Hard
Software Engineer Locked

Least Frequently Used (LFU) Cache

This question tests practical data structure design by requiring an O(1) implementation of a Least Frequently Used cache with tie-breaking by recency....

Coding & Algorithms
4
0
37 people solved
Jun 20, 2026
Amazon logo
Amazon
Easy
Software Engineer Locked

Describe Delivering Under a Tight Deadline

This question evaluates ownership, judgment, prioritization, and the ability to deliver results under time pressure, including how the candidate balan...

Behavioral & LeadershipOwnership & Execution
19
4
303 people solved
May 2, 2026
Google logo
Google
Medium
Product Manager

Choosing Between a Bug Fix and a Feature Request Right After a Pilot Launch

You are the product manager for a product whose pilot has just gone live. Two pieces of work now compete for the team's time: a request for a new feat...

Product / Decision MakingPrioritization & Tradeoffs
0
0
10 people solved
Jan 17, 2026
MathWorks logo
MathWorks
Medium
Software Engineer

Compute intersections for each segment

You are given $n$ segments on a number line. Segment $i$ is the closed interval $[\text{startsAt}[i], \text{endsAt}[i]]$ (inclusive endpoints), with $...

Coding & Algorithms
6
0
85 people solved
Sep 6, 2025
Netflix logo
Netflix
Medium
Software EngineerSenior+

Explain your memo, culture fit, and level justification

Behavioral Memo Walkthrough (Netflix HR Screen — Software Engineer) You are in the recruiter/HR screen for a Software Engineer role at Netflix that yo...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
28
0
234 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Hard
Software EngineerSenior+

Explain owning and debugging infra modules

Describe a time you were responsible for a storage/distributed-systems/infra component (or a similarly low-level, reliability-critical module). The in...

Behavioral & LeadershipProject Deep DiveDebugging
16
0
107 people solved
Jan 22, 2026
eBay logo
eBay
Medium
Software Engineer Locked

Determine Whether a String Is a Valid Number

Determine whether an ASCII string is a valid signed integer or decimal with an optional signed exponent under a precise grammar. Reject whitespace, in...

Coding & Algorithms
7
0
55 people solved
Aug 1, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Use Generative AI to Improve Work Efficiently

Give a real example of using generative AI to improve the speed or quality of work. Distinguish what the tool handled from human judgment, protect sen...

Behavioral & LeadershipAI-Assisted DevelopmentPrivacy & Compliance
2
0
29 people solved
Aug 22, 2026
Capital One logo
Capital One
Medium
Data Scientist

Diagnose Multicollinearity in Flight Delay Prediction Model

Diagnose Multicollinearity in a Flight Delay Prediction Model You are building a model that predicts whether a flight will be delayed using historical...

Machine LearningRegression & Statistical ModelingFeature Engineering
81
0
343 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Determine Whether Package Weights Can Be Safely Arranged

Decide whether package weights from zero through nine can be reordered so every adjacent sum stays below ten, including repeated values and separator ...

Coding & AlgorithmsGreedy
18
0
206 people solved
Aug 19, 2026
Pinterest logo
Pinterest
Hard
Machine Learning Engineer Locked

Sample a string by real-valued scores

This question evaluates probabilistic sampling, numerical stability, and algorithmic implementation skills for weighted selection under floating-point...

Coding & AlgorithmsMath & Number TheoryProbability
15
0
185 people solved
Mar 1, 2026
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Implement LRU cache and copy random list

This question evaluates competency in data-structure design, pointer and memory management, and hashing-based eviction policies by combining a deep-co...

Coding & Algorithms
9
0
74 people solved
Jan 21, 2026
PayPal logo
PayPal
Medium
Software Engineer

Contrast TCP vs UDP; detect loss

Contrast TCP vs UDP; detect loss Contrast TCP and UDP in reliability, ordering, congestion control, connection setup, and overhead. How does TCP detec...

Coding & Algorithms
9
0
80 people solved
Aug 7, 2025
Snowflake logo
Snowflake
Medium
Software Engineer Locked

Design a Geolocation Search Service

Prepare for a Snowflake system design interview about design a geolocation search service. This question focuses on requirements, architecture, trade-...

System DesignSearch & Feed SystemsGeo & Delivery Systems
22
0
373 people solved
Jul 4, 2026
Amazon logo
Amazon
Hard
Data Scientist

Derive and compare core ML and RL methods

ML Fundamentals Technical Screen — Multi‑part Question Context: You are given a set of core machine learning topics to address rigorously. For each pa...

Machine LearningML FundamentalsReinforcement Learning
16
0
124 people solved
Oct 13, 2025
Google logo
Google
Medium
Software Engineer Locked

Solve matrix groups and recipe inventory

This pair of problems evaluates block-wise grid processing and aggregation for minimum-value selection alongside dependency-resolution and resource-al...

Coding & AlgorithmsGrids & MatricesGraphs
34
1
293 people solved
Jan 22, 2026
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