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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
Google logo
Google
Medium
Product Manager

Personalizing Yelp's restaurant picks after users say they feel generic

Yelp keeps hearing from users that its restaurant recommendations do not feel personal: the suggestions look like what anyone nearby would see. As the...

Product Design & StrategyProduct Design & ImprovementPersonalization
0
0
4 people solved
Sep 8, 2024
DoorDash logo
DoorDash
Easy
Data Scientist

Improve biker delivery with metrics and levers

Case: Optimize Delivery Performance for Bike Couriers You are a Data Scientist at a food-delivery marketplace such as DoorDash or Uber Eats. Your team...

Analytics & ExperimentationMetrics & KPIsData Quality & Validation
14
0
102 people solved
Jul 1, 2025
DoorDash logo
DoorDash
Medium
Product Manager

Airbnb: improve the guest journey from confirmed reservation through checkout

You are a product manager at Airbnb, and you have been asked to improve what customers experience after they have booked a stay. Explain how you would...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
4 people solved
Jul 11, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Design an A/B test for non-friend posts

Design an A/B test for non-friend posts evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommen...

Analytics & Experimentation
2
0
36 people solved
Jul 28, 2025
Meta logo
Meta
Medium
Product Manager

Product design case: a new app that helps with food allergies

Design a new app for food allergies. Decide whom it serves and which problem it solves, propose and prioritize features, and explain how you would mea...

Product Design & StrategyProduct Sense
0
0
5 people solved
Apr 21, 2024
Meta logo
Meta
Easy
Data ScientistSenior+ Locked

Design metrics to detect harmful content and fraud

This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a rea...

Analytics & Experimentation
4
0
42 people solved
Aug 5, 2025
Google logo
Google
Medium
Data Scientist

Engineer Features to Enhance Smartphone Battery Life Prediction

Battery Life Prediction with Sparse History You are given sparse discharge traces that record battery percentage over elapsed time for prior usage ses...

Machine LearningRegression & Statistical ModelingFeature Engineering
109
0
424 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Product Manager

Choosing Primary, Funnel and Guardrail Metrics to Judge a New Product Launch

You are the product manager for a product that is about to launch. Explain which metrics you would track to decide whether the launch succeeds or fail...

Analytics & ExperimentationMetrics & KPIsLaunch Evaluation
0
0
6 people solved
Jan 20, 2026
Stripe logo
Stripe
Medium
Product Manager

Favorite Product Deep Dive: Why It Works and How to Adapt It for a New Segment

Name three products you like and know well. Pick one, explain why you like it, and describe how you would adapt it for a new market segment. `hint Ear...

Product Design & StrategyProduct SenseProduct Design & Improvement
0
0
5 people solved
Jul 27, 2025
Google logo
Google
Medium
Product Manager

Choosing a North Star Metric for Airbnb's Two-Sided Marketplace

If Airbnb could follow only one number to judge how well it is doing, which metric should it be? Define it precisely and explain why it beats the alte...

Analytics & ExperimentationMetrics & KPIs
0
0
3 people solved
Feb 12, 2025
Meta logo
Meta
Medium
Product Manager

Facebook Groups: Product Ideas That Foster Supportive, Less Hostile Communities

You are a product manager at Meta working on Facebook Groups. What would you build to spread positivity in groups? Define what positivity means here, ...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
6 people solved
Jul 15, 2025
Amazon logo
Amazon
Medium
Software Engineer

Brainstorm a business problem approach

Brainstorm a business problem approach Analytics & Experimentation Brainstorm (Scenario Provided) Context You are evaluating a feature proposal for a ...

Analytics & Experimentation
6
0
62 people solved
Jul 15, 2025
Meta logo
Meta
Medium
Data Scientist

Explain Algorithm's Disproportionate Impact on Demographic Segments

Explain Algorithm's Disproportionate Impact on Demographic Segments Ad-Ranking A/B Test: Interpreting Heterogeneous CTR Lifts Context You ran a standa...

Analytics & Experimentation
77
0
265 people solved
Aug 4, 2025
Netflix logo
Netflix
Easy
Data ScientistIntern Locked

Estimate ATE, ITT, and TOT from experiment

This question evaluates a data scientist's competency in causal inference and experimental analysis, specifically the estimation and interpretation of...

Analytics & ExperimentationCausal Inference
11
0
158 people solved
Jan 17, 2026
Meta logo
Meta
Medium
Data Scientist

Convince Product Manager to Launch 'Show Similar Products' Button

Convince a PM to Test a "Show Similar Products" Button Instagram is considering adding a "Show similar products" button on product-tagged content to b...

Analytics & Experimentation
7
0
66 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Go-to-market and pricing plan for a working object-teleportation technology

Assume your company has found a way to teleport inanimate objects, and the technology works. As a product manager, explain how you would launch it and...

Product Design & StrategyGrowth & MonetizationProduct Strategy
0
0
5 people solved
Jul 2, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Find top-k lottery winners by spending

This question evaluates skills in selection and ordering of numeric-keyed records, covering concepts such as order statistics, deterministic tie-break...

Coding & AlgorithmsHeaps & Priority Queues
10
0
84 people solved
Jan 1, 2026
TikTok logo
TikTok
Medium
Software Engineer

Check if two-group seating is possible

Check if two-group seating is possible Given an undirected graph represented as an adjacency list where adj[i] lists the indices of guests who know gu...

Coding & Algorithms
4
0
46 people solved
Jul 15, 2025
Meta logo
Meta
Medium
Product Manager

Diagnose a YouTube Launch That Lifted Mobile Views 10% but Cut Desktop Comments 20%

You are a product manager at YouTube, and your team has just launched a new feature. Which feature it is does not matter for this exercise. Since the ...

Analytics & ExperimentationLaunch EvaluationMetric Diagnostics
0
0
7 people solved
Dec 12, 2025
Jerry.Ai logo
Jerry.Ai
Medium
Software Engineer

Explain GPS positioning and errors

Explain how GPS works at a high level. Your answer should cover how satellites and a mobile receiver estimate location, how signal propagation time is...

Software Engineering Fundamentals
2
0
42 people solved
Jan 1, 2026
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