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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
LinkedIn logo
LinkedIn
Medium
Data Scientist

Identify Sales Professionals

Classifying Sales Professionals on LinkedIn You are building a machine-learning system that automatically classifies LinkedIn members who are likely t...

Analytics & Experimentation
21
0
82 people solved
Jul 12, 2025
Jane Street logo
Jane Street
Medium
Quantitative ResearcherIntern

Streaming Equivalence of Two Trade Feeds with Per-Company Ordering

A market-data system receives trade events from two independent feeds. Each event is a pair (company, trade_id) identifying one trade for one company....

Coding & Algorithms
15
0
134 people solved
Oct 12, 2022
TikTok logo
TikTok
Hard
Software Engineer

Explain Kafka architecture and reliability semantics

Explain Kafka architecture and reliability semantics Kafka Architecture and End-to-End Semantics You are asked to explain Kafka's core architecture an...

System Design
6
0
75 people solved
Jul 15, 2025
Meta logo
Meta
Medium
Product Manager

Improve In-App Commerce on TikTok: Target Segment, Pain Points and Prioritized Fixes

TikTok lets people discover products in the videos they watch and buy them without leaving the app. How would you improve the shopping experience on T...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
8 people solved
Jan 26, 2026
TikTok logo
TikTok
Medium
Software Engineer

Find top-k rated nodes via traversal

You are given a finite graph (directed or undirected) with n nodes and m edges. Each node u has an integer rating r[u]. Given a starting node s and an...

Coding & Algorithms
9
0
77 people solved
Sep 6, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Investigate Causes of Cold Food Deliveries and Solutions

Investigate Causes of Cold Food Deliveries and Solutions Diagnosing and Mitigating Cold Food Deliveries Context Customers report that delivered food o...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
82
0
235 people solved
Aug 4, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Traverse a Matrix in Clockwise Spiral Order

Implement spiral_order(matrix) for a rectangular matrix. Return all values in clockwise spiral order, beginning at the top-left corner and first movin...

Coding & Algorithms
4
0
28 people solved
Apr 11, 2026
Google logo
Google
Medium
Product Manager

Making Corporate Team Offsites Better: Pain Points, Solutions and Lasting Impact

How would you make a company offsite a better experience? Here an offsite is a gathering where a team or an organization meets away from its usual off...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
9 people solved
Jan 15, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Detect duplicate files by content

Detect duplicate files by content in a filesystem. Given access to a directory tree, return groups of file paths that have identical byte content. Min...

Coding & Algorithms
16
0
248 people solved
Aug 1, 2025
C3 AI logo
C3 AI
Medium
Data Scientist

Answer regression error and coin toss expectation

Answer regression error and coin toss expectation Multiple choice: Regression assumptions + expectation Answer the following. 1) Linear vs. Logistic R...

Statistics & Math
8
0
66 people solved
Aug 9, 2025
Meta logo
Meta
Medium
Product Manager

Health-Tech Founder Case: Pick a Problem and Define the First Product

You are the founder and CEO of a new startup in the health sector. Decide what the company will build and make the case for it: which problem it solve...

Product Design & StrategyProduct StrategyProduct Sense
0
0
9 people solved
Jan 22, 2026
Meta logo
Meta
Easy
Data Scientist

How would you compare Facebook vs Instagram Stories?

You work on short-form ephemeral content. Both Facebook Stories and Instagram Stories exist, and leadership asks: Which product should we invest in, a...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
14
0
121 people solved
Nov 1, 2025
Databricks logo
Databricks
Medium
Machine Learning EngineerSenior+ Locked

Design Harmful Content Detection

This question evaluates a candidate's ability to design scalable, robust machine learning systems for multimodal content moderation, encompassing comp...

ML System DesignAI Safety & AlignmentAnnotation & Label Quality
17
0
125 people solved
Feb 7, 2026
ByteDance logo
ByteDance
Medium
Software Engineer

Describe your most challenging project and leadership

Describe the most challenging project you have worked on. Your interviewer will drill into details such as: - What the project goal and constraints we...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
13
0
98 people solved
Jan 23, 2026
Meta logo
Meta
Medium
Data Scientist

Expected meetings in Room 1 after random assignment

Expected Meetings in Room 1 Conditional on Being Non-empty There are N rooms and k meetings. Each meeting independently chooses a room uniformly at ra...

Analytics & Experimentation
13
0
45 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Turning a Google-Built Africa-US Bridge into a Prioritized Product Strategy

You are a senior leader at Google. The company has finished building a bridge that links Africa with the United States. Decide what Google should do w...

Product Design & StrategyProduct Strategy
0
0
4 people solved
Apr 28, 2025
Amazon logo
Amazon
Medium
Data Scientist

Optimize Feature Selection and Handling in Machine Learning Models

Optimize Feature Selection and Handling in Machine Learning Models You are building a customer propensity model to predict whether a user will purchas...

Machine Learning
22
0
154 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Turning a Chance Elevator Ride With Your Chief Executive Into a Useful Exchange

Picture yourself stepping into an elevator at the company where you work today and finding its chief executive inside. The ride is short. What would y...

Behavioral & LeadershipCommunication & Stakeholders
0
0
10 people solved
Apr 27, 2025
Pinterest logo
Pinterest
Medium
Product Manager

Root-Cause Analysis of a 20% Single-Day Decline in YouTube Engagement Time

Time spent on YouTube fell 20% compared with the previous day. Explain what you would do: how you would work out why it dropped, and how you would res...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
1
0
9 people solved
Jan 7, 2026
Capital One logo
Capital One
Medium
Product Manager

Forecast the revenue ramp of a newly launched banking product, from launch to maturity

You are a product manager at Capital One, and the company is about to launch a new product. Design the revenue curve for that product: show how revenu...

Product / Decision MakingBusiness Case AnalysisEstimation & Market Sizing
0
0
6 people solved
May 4, 2025
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