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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
Meta logo
Meta
Medium
Data Scientist

Implement randomized Quickselect without k-shift bug

Implement randomized Quickselect to return the k-th largest element (1-based k, 1 ≤ k ≤ n) from an unsorted integer array. Use an in-place partition t...

Coding & Algorithms
8
0
91 people solved
Oct 13, 2025
PayPal logo
PayPal
Medium
Machine Learning Engineer

Maximize ones with limited flips

Given a binary array and an integer k, return the length of the longest contiguous subarray achievable by flipping at most k zeros to ones. Explain an...

Coding & Algorithms
6
0
76 people solved
Sep 6, 2025
Thumbtack logo
Thumbtack
Hard
Data Scientist

Design a robust pro-ranking A/B test

Experiment Design: Evaluating a New Pro Ranking Algorithm (Ranker) in a Two‑Sided Marketplace You are designing an experiment to evaluate a new pro ra...

Analytics & Experimentation
9
0
82 people solved
Oct 13, 2025
Snapchat logo
Snapchat
Medium
Software Engineer

How do you decide with limited information?

Behavioral Question Describe a time you had to make an important decision with incomplete, ambiguous, or conflicting information. Include: - What deci...

Behavioral & LeadershipAmbiguity & Decision Making
14
0
110 people solved
Nov 26, 2025
PayPal logo
PayPal
Medium
Data Scientist

Identify Unsupervised Techniques for Detecting Fraudulent Transactions

Identify Unsupervised Techniques for Detecting Fraudulent Transactions Unsupervised Fraud Detection: Modeling and Evaluation Without Labels Scenario Y...

Machine Learning
140
0
441 people solved
Aug 4, 2025
Akuna Capital logo
Akuna Capital
Medium
Software Engineer

Implement React check-in/out month dropdowns

React UI Enhancement: Check-in/Check-out Month Dropdowns Context You are working on a hotel reservation form in a React codebase. The form needs two n...

Software Engineering Fundamentals
5
0
81 people solved
Aug 12, 2025
Datadog logo
Datadog
Medium
Product Manager

Behavioral: Walk Through a Product You Took From Idea to First Launch

Tell me about a product you built and launched from zero to one: something that did not exist until you took it from an idea to real users. `hint Show...

Behavioral & LeadershipProject Deep DiveUser Research & Discovery
0
0
7 people solved
Mar 27, 2025
Flipkart logo
Flipkart
Medium
Product Manager

Improving Personalized Product Recommendations in Flipkart's Shopping App

You are a product manager at Flipkart, the Indian e-commerce marketplace. How would you improve its AI-powered product recommendations? Explain which ...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
7 people solved
Aug 24, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Differentiate Java final, finalize, finally

Differentiate Java's final, finalize, and finally. Define what final means for variables, methods, and classes and give examples; explain what finaliz...

Coding & AlgorithmsProgramming Languages
12
0
107 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Product Manager

Designing a goods-sharing marketplace so people can borrow home items instead of buying

Design a new marketplace where people borrow household goods from one another and lend out their own. The marketplace is non-financial: what changes h...

Product Design & StrategyProduct SenseTrust & Safety
0
0
9 people solved
Dec 28, 2025
Amperity logo
Amperity
Medium
Software EngineerSenior+

Design Data Aggregation, Query, and One-Time Secret Systems

Design Data Aggregation, Query, and One-Time Secret Systems Address three independent system-design exercises. For each part, establish requirements, ...

System Design
4
0
54 people solved
Apr 7, 2026
Google logo
Google
Hard
Software EngineerNew Grad Locked

Find numbers with exactly two sum-of-squares forms

This question evaluates understanding of integer representations as sums of two squares and the ability to reason about counting distinct unordered re...

Coding & AlgorithmsMath & Number Theory
17
0
119 people solved
Oct 14, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Determine Success Metrics for Biker Dasher Program Launch

Determine Success Metrics for Biker Dasher Program Launch Scenario DoorDash is considering a 'Biker Dasher' program to let couriers use bicycles (and ...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
10
0
156 people solved
Aug 4, 2025
Nubank logo
Nubank
Medium
Product Manager

Growing Uber's Business With Older Adults: Segments, Barriers and Product Bets

You are a product manager at Uber. How would you grow Uber's business by going after older adults as a customer segment? `hint Look past the person in...

Product Design & StrategyAccessibility & Inclusive DesignGrowth & Monetization
0
0
6 people solved
Jun 24, 2026
Instacart logo
Instacart
Medium
Software Engineer

Parse password from indexed matrix file

Question Given a filepath to a text file containing one index line [x, y] followed by a matrix of characters (origin at lower-left (0, 0)), return the...

Coding & Algorithms
37
0
124 people solved
Jul 29, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Test whether two user populations differ

Problem You are given two groups of users: - Group A: North America users - Group B: Europe users Each user has a vector of continuous features (e.g.,...

Machine Learning
5
0
80 people solved
Dec 15, 2025
Walmart Labs logo
Walmart Labs
Medium
Software Engineer

Answer leadership scenarios about influence and integrity

Answer the following behavioral questions with concrete examples (use STAR: Situation, Task, Action, Result): 1. Describe a time you convinced others ...

Behavioral & LeadershipLeadership & InfluenceEthics & Responsibility
8
0
118 people solved
Mar 4, 2026
Uber logo
Uber
Hard
Software Engineer

Design a ride-hailing platform like Uber

You are asked to design a large-scale ride-hailing platform similar to Uber. Requirements Functional requirements - Riders can: - Sign up, log in, a...

System DesignGeo & Delivery SystemsReal-Time Systems
27
0
190 people solved
Nov 17, 2025
Meta logo
Meta
Medium
Product Manager

Deciding Whether and How to Bring Advertising Into Facebook Dating

Assume you are the product manager responsible for Facebook Dating at Meta. A product manager from the Ads team comes to you wanting to start showing ...

Product Design & StrategyGrowth & MonetizationCommunication & Stakeholders
1
0
9 people solved
Jul 15, 2025
PPRO logo
PPRO
Medium
Product Manager

Gathering and validating user needs before writing product requirements

How do you collect user requirements as a product manager? Walk through where requirements come from, the methods you use to gather them, and how you ...

Product / Decision MakingUser Research & DiscoveryRequirements & Launch Execution
1
0
10 people solved
May 5, 2025
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