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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
Medium
Software Engineer

Place items into earliest fitting bins

Place items into earliest fitting bins You are given k items with sizes items[0..k-1] and n bins with initial capacities caps[0..n-1]. Process items i...

Coding & Algorithms
6
1
65 people solved
Aug 10, 2025
PayPal logo
PayPal
Medium
Software Engineer

Explain Java volatile semantics

Explain Java volatile semantics What does the volatile keyword guarantee in Java's memory model? Describe visibility, ordering (happens-before), and r...

Coding & Algorithms
5
0
73 people solved
Aug 7, 2025
TikTok logo
TikTok
Medium
Data Scientist

Analyze and Clean European Ecommerce Sales Data

sales +----------+-------------+------------+---------+---------+----------------+ | order_id | customer_id | order_date | country | revenue | product...

Data Manipulation (SQL/Python)
53
0
120 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Google Product Sense: Reinvent the Parking Experience Around a Garage Google Runs

Google has decided to run a parking garage of its own, and you are the product manager. Design it: explain why Google would operate a garage and what ...

Product Design & StrategyProduct SenseProduct Strategy
0
0
9 people solved
Jun 4, 2026
Reuters logo
Reuters
Easy
Software EngineerIntern

Discuss overfitting, contrastive learning, transformers

You are interviewing for an applied scientist role and are asked several theory questions. 1. Overfitting - Define overfitting and underfitting in ...

Machine Learning
7
0
65 people solved
Nov 14, 2025
Chime logo
Chime
Hard
Data Scientist

Design and Analyze A/B Test for Recommendation Widget

Design and Analyze A/B Test for Recommendation Widget Scenario You are designing and analyzing an online A/B test for launching a new recommendation w...

Analytics & Experimentation
77
0
193 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Software Engineer

Solve two string algorithm tasks

Solve two string algorithm tasks Answer both parts. A) Parentheses correction: Given a string s consisting only of '(' and ')', output the minimum num...

Coding & Algorithms
7
0
55 people solved
Jul 15, 2025
Agoda logo
Agoda
Medium
Product Manager

Leading a Project in an Unfamiliar Domain as a Product Manager

How do you handle a project that falls outside your area of expertise? Answer with a specific project from your own work. `hint Make the learning visi...

Behavioral & LeadershipAmbiguity & Decision MakingSelf-Awareness & Growth
1
0
10 people solved
Feb 11, 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
Pinterest logo
Pinterest
Medium
Data Scientist

Clean and Aggregate Transactions for Finance Dashboard

transactions id | user_id | amount | timestamp | category 1 | 1001 | 19.99 | 2023-01-01 09:00:00 | grocery 2 | 1001 | 5.50 | 2023...

Data Manipulation (SQL/Python)
82
0
53 people solved
Jul 12, 2025
Paytm logo
Paytm
Medium
Product Manager

Diagnose a Sudden 50% Weekly Drop in Paytm Payment Transactions

Paytm, the Indian digital payments app, saw the number of transactions on its platform fall by 50% last week. What could explain a drop this large? La...

Analytics & ExperimentationMetric Diagnostics
0
0
4 people solved
Oct 9, 2025
Swiggy logo
Swiggy
Medium
Product Manager

Pick a North-Star Metric and Guardrails for Lyft's Shuttle Ride Service

The interviewer asks how you would measure the success of Lyft Shuttle, Lyft's shuttle-style shared ride option. Define what success means for this pr...

Analytics & ExperimentationMetrics & KPIs
0
0
9 people solved
Nov 20, 2025
Shopify logo
Shopify
Medium
Data Scientist

Describe Your Professional Growth and Key Learning Experiences

Describe Your Professional Growth and Key Learning Experiences Behavioral Interview — Life Story: Growth and Readiness Scenario A 60-minute “life stor...

Behavioral & Leadership
9
0
96 people solved
Aug 4, 2025
Adobe logo
Adobe
Medium
Machine Learning Engineer Locked

Implement K-means clustering from scratch

This question evaluates a candidate's understanding of clustering algorithms and practical implementation skills in unsupervised machine learning, inc...

Coding & AlgorithmsML CodingUnsupervised Learning
10
0
148 people solved
Jan 13, 2026
Shopify logo
Shopify
Medium
Data Scientist

Analyze Pirate Theme Usage Growth Over Time

themes +----+--------------+-----------+ | id | name | is_pirate | +----+--------------+-----------+ | 1 | Pirate Red | true | | 2 | ...

Data Manipulation (SQL/Python)
7
0
51 people solved
Aug 4, 2025
Capital One logo
Capital One
Medium
Data Scientist

Describe Your Impactful Accomplishment and Learned Lessons

Describe Your Impactful Accomplishment and Learned Lessons Behavioral Interview Prompts (Capital One — Data Scientist) Context You are interviewing fo...

Behavioral & Leadership
8
0
104 people solved
Aug 4, 2025
Snapchat logo
Snapchat
Hard
Software Engineer Locked

Implement a dictionary without built-in Dictionary

This question evaluates understanding of hash tables and low-level data-structure implementation, including hashing, collision resolution, resizing/re...

Coding & Algorithms
11
0
80 people solved
Jan 2, 2026
Notion logo
Notion
Medium
Product Manager

Root-Causing a 25% Drop in Notion's New Free-Plan Accounts

Free sign-ups on Notion are down 25%. How would you work out what caused the drop? `hint Find where the drop lives Before brainstorming causes, make s...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
0
0
8 people solved
Jan 3, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Maximize profit from non-overlapping jobs

You are given up to N = 200,000 jobs; each job i has a start time s_i, end time e_i (s_i < e_i), and reward w_i. Select a subset of non-overlapping jo...

Coding & AlgorithmsDynamic ProgrammingBinary Search
17
0
240 people solved
Jul 16, 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
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