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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

Product Sense: Which Tesla Ownership Experiences Exceed Driver Expectations, and Why

Early in a product manager interview you are asked to name your favorite product, and you choose a Tesla car. The interviewer then asks what about the...

Product Design & StrategyProduct Sense
0
0
6 people solved
Feb 12, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Design and justify unread-account pinning experiment

This question evaluates a data scientist's competency in experimental design, causal inference, metric definition, instrumentation, and analysis for p...

Analytics & Experimentation
2
0
31 people solved
Oct 13, 2025
Uber logo
Uber
Hard
Data Scientist

Select the better $5 promo-targeting model

Coupon Targeting Under a Daily Budget: Policy, OPE, Calibration, and Monitoring Context - You have two user-scoring models for a $5 coupon: M0 (curren...

Machine Learning
11
0
86 people solved
Oct 13, 2025
Electronic Arts logo
Electronic Arts
Medium
Product Manager

Answer EA PM behavioral prompts

For a Product Manager interview with EA's Plants vs. Zombies studio, prepare concise but compelling answers to first-round HR and written behavioral q...

Behavioral & LeadershipMotivation & FitProject Deep Dive
11
0
104 people solved
Jan 5, 2025
Meta logo
Meta
Medium
Software Engineer

Answer common behavioral prompts

You are asked several behavioral questions. Answer each with a concrete example from your experience (use STAR: Situation, Task, Action, Result), and ...

Behavioral & Leadership
5
0
43 people solved
Oct 12, 2025
Meta logo
Meta
Medium
Data Scientist

Compute posterior and event counts in fraud screen

Fake-Account Screening with Threshold on 5 Signals You are designing a rule-based screener that flags an account if at least k of 5 binary signals fir...

Statistics & Math
2
0
52 people solved
Oct 13, 2025
Hard
Data Scientist

Extract companies from noisy text

Extracting Company Names from Noisy Resumes and Web Snippets Context You receive messy resume text (PDF-to-text/OCR, varying casing) and scraped web s...

Machine Learning
5
0
86 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Validate in-post restaurant recommendations via experiment

This question evaluates a data scientist's competency in experimental design for recommendation systems, including defining viewer- and creator-level ...

Analytics & Experimentation
1
0
29 people solved
Oct 13, 2025
Validus Capital logo
Validus Capital
Medium
Product Manager

Product Sense: Mapping Friction in the Consumer Online Buying Journey and Proposing Fixes

Identify the main problems consumers run into when they buy things online, and propose how you would address them. `hint Walk the journey Trace a purc...

Product Design & StrategyProduct Sense
0
0
4 people solved
Feb 9, 2024
Google logo
Google
Hard
Data Scientist

Explain a favorite model end-to-end

Predictive Model Deep-Dive (End-to-End) Pick one predictive model you know deeply (e.g., logistic regression, gradient-boosted trees, transformer clas...

Machine Learning
6
0
77 people solved
Oct 13, 2025
Citibank logo
Citibank
Medium
Data Scientist

Diagnose and fix linear regression assumption breaks

OLS Assumptions, Diagnostics, Remedies, and Refitting Under Heteroskedasticity and Multicollinearity You are fitting a linear regression with Ordinary...

Machine LearningRegression & Statistical ModelingSampling & Estimation
11
0
101 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Software EngineerIntern

Detect Anomalous Trip Behavior

Detect Anomalous Trip Behavior Develop a process to identify days, times, or locations where green-taxi traffic or behavior deviates from its normal p...

Machine Learning
5
0
43 people solved
Sep 27, 2020
Graham Capital logo
Graham Capital
Hard
Software Engineer

Model and measure trading transaction costs

Modeling and Incorporating Transaction Costs in an Event-Driven Trading Strategy Context You are designing an event-driven trading strategy that react...

Analytics & ExperimentationPortfolio Construction & Alpha Research
3
0
57 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Data Scientist

Quantify launch decision with tests and guardrails

You will formalize the statistical decision rules for the Instagram button experiment described above. Given: baseline exploration rate (p0) = 0.15 pe...

Statistics & Math
4
1
58 people solved
Oct 13, 2025
Coinbase logo
Coinbase
Hard
Data Scientist Locked

Estimate Super Bowl QR-driven registrations

This question evaluates quantitative estimation, probabilistic modeling, sensitivity analysis, and experiment design skills for a data scientist, incl...

Analytics & Experimentation
4
0
47 people solved
Oct 13, 2025
Medium
Data ScientistIntern

Compute and estimate Markov transition probabilities

A system is modeled as a discrete-time Markov chain over m states S = {s1, s2, ..., sm}. Part A (multi-step probabilities): - You are given a row-stoc...

Statistics & Math
7
0
57 people solved
Sep 10, 2025
Airwallex logo
Airwallex
Easy
Data Scientist

Diagnose conversion-rate time series and CTA swap

Part A — Diagnose a conversion/approval-rate time series You are given a monthly time series of credit card approval rate from Jan 2013 to Jan 2015. Y...

Analytics & ExperimentationMetric DiagnosticsExperiment Design (A/B Testing)
11
0
119 people solved
Oct 1, 2025
Amazon logo
Amazon
Medium
Applied ScientistSenior+

Explain XGBoost Parallelism Strategies

Explain How XGBoost Parallelizes Training Scope Describe how XGBoost achieves parallelism: 1. Within a single machine - Histogram-based split findi...

Machine LearningSupervised Learning
9
0
106 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Product Manager

Laying Out Supermarket Aisles as a PM: Shopper Missions, Store Goals and Testing

You are the product manager for a grocery store. How would you decide how its aisles are organized? Treat the floor plan as the product: explain the g...

Product Design & StrategyProduct Sense
0
0
6 people solved
Jun 15, 2024
Google logo
Google
Medium
Product Manager

Building a Launch Success Readout for a New Google Product From Log Data

You are a product manager at Google, and a new product has just launched. Explain how you would use logs to decide whether the product is succeeding. ...

Analytics & ExperimentationLaunch EvaluationMetrics & KPIs
1
0
7 people solved
Sep 26, 2025
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