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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
Datadog logo
Datadog
Medium
Software Engineer

Compute sliding window sums by tag

Question Given a list of datapoints where each datapoint has tags, a timestamp, and a value, write a function that, for a specified tag t and window s...

Coding & Algorithms
17
0
127 people solved
Jul 29, 2025
Spotify logo
Spotify
Medium
Product Manager

Spotify Product Design: Turning One Seed Song Into a Personalized Playlist

You are a product manager for a music streaming app such as Spotify. A listener has just played one song. Design how the app should turn that single s...

Product Design & StrategyProduct Design & ImprovementRecommendation Systems
1
0
12 people solved
Sep 3, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Defend Your Pick of a Subscription Product: Recurring Value, Plans and Retention

Which subscription product do you rate above every other one you pay for? Name it and explain what makes it your choice. `hint Earn the renewal A subs...

Product Design & StrategyProduct SenseGrowth & Monetization
1
0
24 people solved
Dec 20, 2024
Microsoft logo
Microsoft
Medium
Product Manager

Behavioral & Leadership Fit at Microsoft

Microsoft Product Manager Behavioral and Leadership Fit Prepare for a Microsoft Product Manager onsite behavioral and leadership interview. Use specif...

Behavioral & LeadershipRequirements & Launch ExecutionMotivation & Fit
11
0
117 people solved
Jul 4, 2025
Meta logo
Meta
Medium
Data Scientist

Evaluating and launching Instagram Stories

Evaluating and Launching Instagram Stories You are evaluating the rollout and impact of Stories, an ephemeral sharing format similar to Snapchat, acro...

Analytics & ExperimentationLaunch EvaluationMetrics & KPIs
80
1
329 people solved
Jul 12, 2025
Arista logo
Arista
Easy
Software Engineer

Find missing value in sorted consecutive array

Given a sorted array nums of distinct integers. The numbers are supposed to form a consecutive sequence starting from some unknown integer start: - If...

Coding & Algorithms
7
0
94 people solved
Oct 4, 2025
DRW logo
DRW
Medium
Data Scientist

Compute Markov steady state and expectations

Compute Markov steady state and expectations Probability and Game Theory: Three Sub-questions Context: The exact transition matrix P (for Q1) and the ...

Statistics & MathProbabilityPuzzles & Brainteasers
12
0
119 people solved
Jul 28, 2025
Anthropic logo
Anthropic
Medium
Software Engineer

Explain career goals and cultural alignment

Explain career goals and cultural alignment Behavioral: Long‑Term Goals and Mission Alignment (Software Engineer, Onsite) Prompt You are interviewing ...

Behavioral & LeadershipMotivation & Fit
30
0
210 people solved
Jul 29, 2025
Anrok logo
Anrok
Hard
Software Engineer

Design async batched key-value fetcher

Design an async, batched key-value fetcher with a 100 ms window Context You have a single-threaded, event-loop environment (e.g., JS/TS). A backend en...

System DesignData Structure DesignConcurrency
21
0
343 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Product Manager

Product Sense: Designing a Real Estate Investing Product, From Investor Segment to MVP

Design a new product that helps people invest in real estate. Explain who the product is for, which problems it solves for them, what the first versio...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
6 people solved
Feb 16, 2026
IBM logo
IBM
Easy
Data ScientistIntern

Estimate free-trial conversion probability

Context A product offers a free trial. You are asked: “What is the probability of conversion for a group of people who started a free trial?” Data (as...

Analytics & Experimentation
8
0
75 people solved
Jan 17, 2026
Oracle logo
Oracle
Medium
Software Engineer Locked

Maximize area between vertical lines

This question evaluates algorithmic reasoning with arrays and the ability to optimize pairwise measurements, specifically assessing understanding of h...

Coding & Algorithms
5
0
75 people solved
Jan 4, 2026
Google logo
Google
Medium
Product Manager

YouTube Live Monetization: A New Way for Viewers to Pay Streaming Creators

You are a product manager at YouTube. Creators who stream live want to earn more from their streams. Design a payments feature that helps them do so. ...

Product Design & StrategyGrowth & MonetizationProduct Design & Improvement
0
0
10 people solved
Sep 13, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Design Slack-like messaging platform

Design a Slack-like team collaboration product. Core features: - Workspaces (tenants), users, and channels (public/private) - Direct messages (1:1 and...

System DesignReal-Time SystemsMessaging & Event-Driven
18
0
142 people solved
Oct 31, 2025
Notion logo
Notion
Medium
Product Manager

Behavioral: Resolving a Cross-Team Conflict and Getting Both Sides to Commit

Describe a situation where teams you depended on were at odds with each other, and walk through how you got them working toward the same outcome. `hin...

Behavioral & LeadershipConflict & CollaborationLeadership & Influence
0
0
8 people solved
Aug 3, 2025
Netflix logo
Netflix
Medium
Machine Learning Engineer

Transform flat keys into nested dictionary

You are given a flat collection of parameter keys like ['layer1.attention.q_proj.weight', 'layer1.attention.k_proj.weight', 'layer1.mlp.fc1.weight', ....

Data Manipulation (SQL/Python)Arrays & StringsData Cleaning & Wrangling
10
0
178 people solved
Aug 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Decide whether to invest in R&D

Should we invest now in a Vegan burger? Build a decision narrative Context Assume you are the owner of a 100‑location fast‑casual burger chain evaluat...

Behavioral & Leadership
4
0
56 people solved
Oct 13, 2025
Google logo
Google
Medium
Product Manager

Owning a Product Decision That Left You Deeply Upset: Impact and Lessons

Describe a moment from your product work, something you yourself did or decided, that left you genuinely sad. What happened, and what did you take fro...

Behavioral & LeadershipFailure & Learning
0
0
5 people solved
Jul 17, 2026
Amazon logo
Amazon
Medium
Data ScientistSenior+

Transform event logs with subscription windows in pandas

Using pandas, compute user-level subscription-aligned revenue and anomalies for September 2025. DataFrames: events(user_id:int, ts:UTC datetime, event...

Data Manipulation (SQL/Python)
2
0
36 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Product Design Case: A Trip Planner for Parents, Kids and Grandparents Traveling Together

You are a product manager asked to design a new travel app built for families. Explain who you would build it for, what goes wrong for them when they ...

Product Design & StrategyProduct SensePrioritization & Tradeoffs
0
0
10 people solved
Jul 21, 2026
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