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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
Microsoft logo
Microsoft
Medium
Software Engineer

Build a time-based key-value store

Problem Design a data structure that stores multiple values for the same key at different timestamps, and can retrieve the most recent value as of a g...

Coding & AlgorithmsData Structure DesignBinary Search
10
0
106 people solved
Oct 14, 2025
Meta logo
Meta
Hard
Software Engineer

Design an online coding judge

Question Design an online coding practice and judging platform (think LeetCode / HackerRank / Codeforces) where users submit solutions that are compil...

System Design
11
0
95 people solved
Aug 14, 2025
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
Disney logo
Disney
Easy
Software Engineer

Design a frontend shopping cart and feature flags

Scenario You are designing frontend-focused systems for a large e-commerce web app. Part A — Shopping cart (frontend focus) Design the shopping cart e...

System DesignState ManagementExperiment Design (A/B Testing)
23
0
191 people solved
Nov 24, 2025
DRW logo
DRW
Medium
Machine Learning Engineer

Process CSV for portfolio returns and metrics

Given one or more CSV files containing daily asset prices or returns and optional portfolio weights, write Python (pandas) code to: a) load, clean, an...

Data Manipulation (SQL/Python)Pandas & Python DataData Cleaning & Wrangling
3
0
49 people solved
Jul 29, 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
Lyft logo
Lyft
Medium
Software Engineer

Implement pagination and a time-versioned key-value store

Implement two coding tasks: 1) Transaction pagination: Given an in-memory collection of transaction records with fields (txn_id: string, user_id: stri...

Coding & AlgorithmsData Structure DesignAPI Design
15
0
231 people solved
Sep 6, 2025
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
Riotgames logo
Riotgames
Easy
Software Engineer Locked

Resolve a Disagreement Constructively

Describe a meaningful disagreement with competing goals, the evidence and decision process used to resolve it, and the outcome and lessons learned.

Behavioral & Leadership
0
0
17 people solved
Aug 26, 2026
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
LinkedIn logo
LinkedIn
Medium
Data Scientist

Implement fast sampling for weighted k-sided die

You must sample from a categorical distribution over k outcomes with probabilities p1..pk (sum to 1) without using built-in categorical samplers. You ...

Coding & AlgorithmsProbabilityMath & Number Theory
6
0
127 people solved
Oct 13, 2025
StubHub logo
StubHub
Medium
Software Engineer

Explain a resume project end-to-end

End-to-End Project Walkthrough (Technical Screen — Software Engineer) Prompt Walk me through one project on your resume end-to-end. Please cover 1. Pr...

Behavioral & LeadershipProject Deep Dive
11
0
99 people solved
Sep 6, 2025
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
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
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Software Engineer

Calculate minutes between two time strings

Given two times t1 and t2 in "HH:MM" 24-hour format on the same day with t2 > t1, compute the difference in minutes. Show how you parse the strings, c...

Data Manipulation (SQL/Python)Parsing & Interpreters
7
0
123 people solved
Aug 8, 2025
Palo Alto Networks logo
Palo Alto Networks
Medium
Software Engineer

Mirror a binary tree and analyze complexity

Given the root of a binary tree, convert it to its mirror by swapping every node’s left and right children. Implement both recursive and iterative (us...

Coding & Algorithms
11
0
103 people solved
Sep 6, 2025
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
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
Chime logo
Chime
Medium
Data Scientist

Write SQL for noisy A/B launch metrics

PostgreSQL. Today is 2025-09-01. You’re given the following schema and toy samples: users(user_id INT, country TEXT, signup_date DATE, marketing_chann...

Data Manipulation (SQL/Python)
3
0
45 people solved
Oct 13, 2025
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
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