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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
4.0k
Companies
967
Updated
10.24.2026
4.0k Questions 967 Companies10.24.2026
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
Waymo logo
Waymo
Medium
Data Scientist Locked

Conservative Wait Estimates Cut Conversion and Pickup Time: Did Efficiency Improve?

A ride service showed riders conservative pickup-time estimates; afterwards conversion fell 5% and actual time to pickup fell 25%. Decide whether flee...

Analytics & ExperimentationMetric DiagnosticsLaunch Evaluation
6
0
70 people solved
Sep 10, 2026
DoorDash logo
DoorDash
Medium
Product Manager

Tripadvisor Revenue Strategy: Levers, Bets and the Math to Triple the Business

What would you do to grow Tripadvisor's revenue to three times its current level? `hint Start from how it gets paid List the ways Tripadvisor earns mo...

Product Design & StrategyGrowth & MonetizationProduct Strategy
1
0
13 people solved
Oct 13, 2026
Stripe logo
Stripe
Hard
Software Engineer Locked

Improving a Product After Shipping Its MVP: Deciding What to Iterate On

Behavioral question about a time you shipped a minimum viable product at work and then had to keep improving it. Tests how you scope an MVP, use post-...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
10
0
101 people solved
Sep 15, 2026
Google logo
Google
Medium
Product Manager

Post-Acquisition Strategy: A Six-Month Google Launch Built on Bank of America

Imagine that Google has acquired Bank of America. Google's leadership asks you, as a product manager, to launch a product within six months. Which pro...

Product Design & StrategyProduct StrategyPrioritization & Tradeoffs
0
0
16 people solved
Oct 17, 2026
Notion logo
Notion
Medium
Product Manager

Driving More Paid Seats Inside Existing Notion Customer Workspaces

As a product manager at Notion, how would you drive seat expansion: getting companies that already pay for Notion to add more paid seats? `hint Follow...

Product Design & StrategyGrowth & MonetizationUser Behavior & Funnels
2
0
22 people solved
Oct 7, 2026
LinkedIn logo
LinkedIn
Medium
Data Scientist

Estimate an Experiment’s Mean Effect from Cohort and Metric Tables

Estimate an Experiment’s Mean Effect from Cohort and Metric Tables An experiment cohort table records each user, experiment-entry time, and treatment ...

Statistics & MathExperiment Analysis & ReadoutHypothesis Testing
2
0
45 people solved
Sep 22, 2026
AT&T logo
AT&T
Medium
Product Manager

Improving Airport Wi-Fi With a 30-Minute Free Window and Paid Passes

You run a Wi-Fi service at international airports. Every traveler gets the first 30 minutes online for free, and anyone who wants to stay connected af...

Product Design & StrategyProduct Design & ImprovementGrowth & Monetization
3
0
24 people solved
Oct 19, 2026
Faire logo
Faire
Medium
Product Manager

Faire Marketplace: Generating and Sizing Profitability Levers Before Committing to One

You are a product manager at Faire, the online wholesale marketplace that connects independent brands with independent retail stores. Pick a product t...

Product / Decision MakingGrowth & MonetizationBusiness Case Analysis
2
0
15 people solved
Oct 15, 2026
DoorDash logo
DoorDash
Easy
Data ScientistSenior+

Measure Customers Ordering from Bottom-Quartile Restaurants

Measure Customers Ordering from Bottom-Quartile Restaurants Write one PostgreSQL SELECT statement or CTE query. Do not create, alter, or modify tables...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
13
1
199 people solved
Jul 27, 2026
Microsoft logo
Microsoft
Medium
Product Manager

Retention measurement: defining active use, cohort windows and revenue retention

How would you define and measure retention for a product? `hint Start from the usage rhythm Decide how often a satisfied user would naturally come bac...

Analytics & ExperimentationMetrics & KPIsSegmentation & Cohort Analysis
1
0
11 people solved
Oct 19, 2026
Capital One logo
Capital One
Medium
Data Analyst

Set a Minimum Sale Price After Audience Loss and Reinvestment

Set a Minimum Sale Price After Audience Loss and Reinvestment A streaming business is considering selling The Analyst and using the opportunity to pur...

Analytics & ExperimentationBusiness Case Analysis
4
1
57 people solved
Sep 15, 2026
Capital One logo
Capital One
Medium
Software EngineerSenior+

Explain How AI Supports Your Engineering Work

Describe how you use AI in day-to-day engineering work and how it can improve your output. Give a concrete example involving coding or design, and exp...

Behavioral & LeadershipAI-Assisted Development
6
0
110 people solved
Aug 23, 2026
Waymo logo
Waymo
Medium
Data Scientist Locked

Compare Driving Algorithms Using Hard-Braking Rates

Design an exposure-aware experiment comparing hard-braking rates across two driving algorithms, with city and road-condition controls and count-data i...

Analytics & ExperimentationExperiment Design (A/B Testing)Hypothesis Testing
39
0
289 people solved
Sep 6, 2026
Netflix logo
Netflix
Medium
Product Manager

Netflix Ads Feature Launch: Staged Release, Holdouts and Two-Sided Success Metrics

You are a product manager at Netflix. The company is getting ready to launch a new feature that earns money through advertising, and it has not yet re...

Product Design & StrategyExperiment Design (A/B Testing)Metrics & KPIs
1
0
17 people solved
Oct 11, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

How AI Coding Tools Change Software Development and When to Trust Their Output

How is AI changing the way software is written, and should engineers trust the code that AI tools produce? This was another of the director's open-end...

Software Engineering FundamentalsAI-Assisted DevelopmentCode Quality & Maintainability
3
0
26 people solved
Oct 1, 2026
Affirm logo
Affirm
Medium
Data Analyst

Investigate Rising Loan Delinquency with Stable Approval Rates

Investigate Rising Loan Delinquency with Stable Approval Rates A new loan cohort shows a higher rate of loans that are at least 30 days past due after...

Analytics & ExperimentationMetric DiagnosticsBusiness Case Analysis
3
0
53 people solved
Sep 23, 2026
Google logo
Google
Hard
Data Analyst

Design a Spam Review Workflow with Classifiers, AI Agents, and Human Labelers

Design a Spam Review Workflow with Classifiers, AI Agents, and Human Labelers Design a spam detection system that combines a classifier, an AI agent, ...

ML System DesignAI AgentsAnnotation & Label Quality
8
0
75 people solved
Sep 9, 2026
Glean logo
Glean
Medium
Data Scientist

Product Case: Define Success Metrics for a Product, Using Enterprise Search as Example

In a hiring-manager interview for a data scientist role, one question was a product case: how would you measure the success of a product? The report d...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
1
0
36 people solved
Sep 30, 2026
Discord logo
Discord
Medium
Data ScientistSenior+

Evaluate Model-Targeted Subscription Notifications

Evaluate Model-Targeted Subscription Notifications A classification model identifies users likely to subscribe, and the product team plans to send tho...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
2
0
41 people solved
Sep 26, 2026
Waymo logo
Waymo
Medium
Data Scientist Locked

SQL: Average Ride Rating in Users' First and Third Active Months by City

Write a PostgreSQL query that compares average ride ratings in each user's first and third active months, grouped by city and averaged over individual...

Data Manipulation (SQL/Python)SQL
11
0
99 people solved
Sep 10, 2026
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