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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
Data Scientist

Implement rotated array binary search with duplicates

Given an integer array nums that is a non-decreasing array rotated an unknown number of times. Duplicates may exist. Implement a function that returns...

Coding & AlgorithmsBinary Search
10
0
118 people solved
Oct 13, 2025
Snowflake logo
Snowflake
Hard
Software Engineer Locked

Count a Distributed Tree with Nonblocking Messages

Design a nonblocking message protocol that lets a distributed tree compute its total node count. The discussion explores asynchronous state machines, ...

Software Engineering Fundamentals
4
0
46 people solved
May 24, 2026
Meta logo
Meta
Hard
Software Engineer Locked

Explain the Project You Are Most Proud Of

Prepare a project-pride behavioral interview answer that shows personal ownership, technical judgment, a meaningful course correction, and evidence of...

Behavioral & Leadership
2
0
41 people solved
Aug 3, 2026
Citadel logo
Citadel
Medium
Data Scientist

Analyze Town Temperatures and Select Predictors for NYC

A pandas DataFrame contains \(N\) daily temperature observations for NYC and \(P\ge5\) town columns. Implement: `python q1_q5(df) -> list q6(df) -> li...

Machine Learning
7
0
54 people solved
Apr 15, 2026
Perplexity logo
Perplexity
Medium
Product Manager

Engineer pushes back on a data-backed product call: reaching a shared decision

You and an engineer disagree about a product decision. Your position rests on data; theirs rests on technical concerns. How would you resolve it while...

Behavioral & LeadershipConflict & Collaboration
1
0
11 people solved
May 10, 2026
Amazon logo
Amazon
Hard
Data Scientist

Evaluate concession gift-card policy with DID

Evaluate a Gift-Card Concession Pilot (Causal Impact with Staggered Adoption) Context Several regions piloted a policy: when a shipment is lost or dam...

Analytics & Experimentation
9
0
103 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Evaluate Models for Credit-Risk Scoring at Capital One

Evaluate Models for Credit-Risk Scoring at Capital One Scenario You are building a production-grade credit-risk scoring model (predicting probability ...

Machine Learning
26
0
115 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Google Maps Live Location Sharing: Architecture for Freshness, Battery and Privacy

You are a product manager on Google Maps, and the interviewer wants to see how well you understand the engineering behind location sharing: the featur...

System DesignTechnical Tradeoffs for PMsReal-Time Systems
1
0
12 people solved
Jan 24, 2025
Meta logo
Meta
Medium
Product Manager

Meta AR/VR Concept for Older Adults: Segment, MVP and Success Metrics

You are a product manager at Meta. Create an augmented reality or virtual reality product for people aged 65 and older. Explain the goal you would set...

Product Design & StrategyProduct SenseAccessibility & Inclusive Design
1
0
9 people solved
Jul 29, 2026
Soros logo
Soros
Medium
Quantitative Researcher

Red and Black Card Game With Optional Stopping: How Much Would You Pay to Play?

A shuffled deck of 52 cards has 26 red cards and 26 black cards. Cards are turned over one at a time without replacement. Each red card earns you \$1 ...

Statistics & MathPuzzles & BrainteasersProbability
0
0
2 people solved
Aug 11, 2026
Meta logo
Meta
Medium
Data Scientist

Join datasets and compute conversion by assignment

You are given two CSVs. Create tables and write SQL to produce both visit-level and visitor-level conversion datasets, then aggregate conversion by as...

Data Manipulation (SQL/Python)
2
0
28 people solved
Oct 13, 2025
Blinkit logo
Blinkit
Medium
Product Manager

Laundry pickup and delivery service built on Blinkit's quick-commerce fleet

In a product manager interview, you are asked to design a laundry product for Blinkit, the Indian quick-commerce company known for delivering grocerie...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
8 people solved
Jul 4, 2026
Amazon logo
Amazon
Medium
Product Manager

Investigate and Fix a Rise in E-commerce Cart Abandonment

You are the product manager for an online store's shopping experience, and the cart abandonment rate has gone up: a larger share of shoppers who put i...

Analytics & ExperimentationMetric DiagnosticsUser Behavior & Funnels
0
0
9 people solved
Nov 25, 2025
Pilot logo
Pilot
Easy
Software EngineerNew Grad

Explain Python and Web Basics

In a software engineering interview, explain the following fundamentals: 1. In Python, what are the differences between a list and a tuple? When would...

Software Engineering Fundamentals
3
1
49 people solved
Jan 7, 2026
Amazon logo
Amazon
Medium
Product Manager

Behavioral: Owning a Product Initiative From First Idea to Post-Launch Results

How do you show ownership and carry a piece of work all the way through to results? Answer with a specific initiative you drove, from defining the pro...

Behavioral & LeadershipOwnership & Execution
0
0
7 people solved
Jul 8, 2026
Amazon logo
Amazon
Medium
Data Scientist

Optimize Email Strategy for New Prime Video Series Launch

Optimizing Email Strategy for a New Prime Video Series Launch You are designing, deploying, and evaluating ranking models and marketing emails for Pri...

Machine Learning
72
0
69 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Software Engineer

Solve interval deletion and GCD subarray problems

This Amazon online assessment contains two independent algorithm problems. For each, return the requested value, describe an efficient algorithm, and ...

Coding & Algorithms
18
1
132 people solved
Jul 16, 2025
Flipkart logo
Flipkart
Medium
Product Manager

Flipkart Social Commerce: Feature Concept and MVP Pilot Plan

You are a product manager at Flipkart, the Indian e-commerce marketplace. Design a social shopping feature, meaning something that lets other people (...

Product Design & StrategyProduct Design & ImprovementExperiment Design (A/B Testing)
0
0
10 people solved
Nov 29, 2025
CRED logo
CRED
Medium
Product Manager

Netflix Subscription Health: Picking Three Metrics to Run the Product On

As the product manager for Netflix's streaming service, you are asked which three metrics you would focus on above all others. Name them, define each ...

Analytics & ExperimentationMetrics & KPIs
0
0
10 people solved
Apr 21, 2026
Amazon logo
Amazon
Medium
Data Scientist

Find daily first-order merchants with SQL

Given the table below, write a single SQL query using window functions to: A) For each calendar date (UTC), return all merchant_id(s) whose order is t...

Data Manipulation (SQL/Python)
5
1
45 people solved
Oct 13, 2025
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