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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
Tubi logo
Tubi
Hard
Data Scientist

Determine A/B test sample size drivers

A/B Test Sample Size With Variations and Overdispersed Metric Case You are planning a two‑arm A/B test on a binary conversion metric with: - Baseline ...

Analytics & Experimentation
4
0
54 people solved
Oct 13, 2025
Salesforce logo
Salesforce
Medium
Product Manager

Working Through a Conflict Between Product and Engineering

Describe a time you disagreed with your engineering team or an engineering counterpart. What was the disagreement about, how did you work through it, ...

Behavioral & LeadershipConflict & CollaborationTechnical Tradeoffs for PMs
1
0
14 people solved
Nov 21, 2023
Amazon logo
Amazon
Medium
Data Scientist

Analyze User Engagement with SQL Queries

events +----------+---------+---------------------+ | event_id | user_id | event_time | +----------+---------+---------------------+ | 1 ...

Data Manipulation (SQL/Python)
107
0
304 people solved
Aug 4, 2025
Stripe logo
Stripe
Medium
Product Manager

Scorecard for Stripe Billing: Merchant Adoption, Revenue Collection and Guardrails

You are a product manager at Stripe working on Billing, the product businesses use to charge their customers on a recurring basis through subscription...

Analytics & ExperimentationMetrics & KPIsSegmentation & Cohort Analysis
1
0
10 people solved
Aug 13, 2025
Intuit logo
Intuit
Medium
Product Manager

Intuit Product Strategy: Choosing a Future Technology Bet and Turning It Into Growth

Pick one technology trend you expect Intuit to take on in the coming years. Explain why you chose it over other trends, and describe how Intuit could ...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
7 people solved
Sep 27, 2025
HelloFresh logo
HelloFresh
Medium
Product Manager

HelloFresh Strategy Case: Meal-Kit Demand During and After the Pandemic

Explain how the COVID-19 pandemic affected HelloFresh and its meal-kit business. `hint Ask what lasted Trace each effect through customers, operations...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
5 people solved
Dec 22, 2024
DoorDash logo
DoorDash
Hard
Data Scientist

Design analytics for a new-market launch

DoorDash New-City Launch: Metrics, Guardrails, and Causal Rollout Design Task Define success metrics and guardrails for three phases of a new-city lau...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
37
0
265 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Business Intelligence Engineer

Count Customers Buying Both 'Kindle' and 'Alexa'

ITEMS +---------+-----------+ | ITEM_ID | ITEM_NAME | +---------+-----------+ | 101 | Kindle | | 202 | Alexa | | 303 | Fire TV | ...

Data Manipulation (SQL/Python)
15
0
68 people solved
Jul 12, 2025
Amazon logo
Amazon
Medium
Product Manager

Amazon PM behavioral: discussing your weakest-fit Leadership Principle honestly

You are interviewing for a product manager role at Amazon. The interviewer asks which of the company's Leadership Principles you connect with the leas...

Behavioral & LeadershipMotivation & FitFailure & Learning
0
0
6 people solved
Oct 30, 2025
Amazon logo
Amazon
Hard
Software Engineer

Design document-tag classes with concurrency safety

Design document-tag classes with concurrency safety System Design: In‑Memory Document–Tag Manager (Single Node) Context You are designing an in-memory...

System Design
9
0
77 people solved
Jul 31, 2025
Uber logo
Uber
Hard
Data Scientist

Formulate hypotheses and compute AB test significance

A/B Test Snapshot: Pickup ETA Card Experiment You are analyzing a 7-day A/B test with equal allocation. Each request is an exposure; the primary outco...

Statistics & MathHypothesis TestingExperiment Analysis & Readout
16
0
132 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Pick YouTube's Next Strategic Bet and Design Its First Version

You are a product manager at Google working on YouTube. Identify what you see as YouTube's next major opportunity, explain why it deserves priority ov...

Product Design & StrategyProduct StrategyProduct Sense
1
0
10 people solved
Jan 30, 2026
Lyft logo
Lyft
Medium
Product Manager

Lyft Market-Entry Call: Adding Restaurant Delivery to a Ride-Hailing Business

Suppose Lyft is deciding whether to expand beyond ride-hailing into food delivery. As a product manager, give a recommendation on whether it should en...

Product Design & StrategyProduct StrategyEstimation & Market Sizing
0
0
8 people solved
Aug 12, 2025
Capital One logo
Capital One
Hard
Data Scientist

Build and validate a binary classifier

ML Pipeline with Grouped CV, Imbalance Handling, Calibration, and Thresholding Context: You have a labeled dataset where the target is is_active_30d (...

Machine Learning
11
0
76 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Describe Effective Team Collaboration and Ethical Decision-Making Strategies

Describe Effective Team Collaboration and Ethical Decision-Making Strategies Scenario Behavioral interview for a Capital One Data Scientist technical ...

Behavioral & Leadership
24
0
104 people solved
Aug 4, 2025
Capital One logo
Capital One
Medium
Data Scientist

Choose and justify ML algorithms for tabular prediction

You must choose an algorithm for tabular prediction of arrival delay under these constraints: 500k rows, 120 features (mixed numeric/categorical with ...

Machine Learning
4
0
81 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Redesign the Shopper's Trip Through a Physical Supermarket, Without Online Ordering

You are a product manager asked to improve what it is like to shop inside a physical grocery store. The interviewer wants ideas that help people durin...

Product Design & StrategyProduct Design & ImprovementPrioritization & Tradeoffs
1
0
8 people solved
Aug 18, 2025
Amazon logo
Amazon
Medium
Data Scientist

Implement Reservoir Sampling; Analyze Time and Space Complexity

Scenario Process an unbounded stream of user IDs and maintain a uniform random sample of k users in memory. Question Implement reservoir sampling for ...

Coding & Algorithms
25
0
88 people solved
Aug 4, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Discuss Projects and Planning Improvements

Behavioral: End-to-End Project Leadership and Cross-Quarter Initiative Provide a structured walkthrough that demonstrates ownership, product understan...

Behavioral & Leadership
4
0
84 people solved
Sep 6, 2025
Sealth logo
Sealth
Medium
Software Engineer Locked

Simulate Threshold Grid Infection

This question evaluates understanding of discrete grid-based simulations and local state-transition rules, focusing on modeling infection spread, neig...

Coding & Algorithms
6
0
45 people solved
Mar 13, 2026
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