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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
Spotify logo
Spotify
Medium
Product Manager

Product design for how Spotify chooses what to suggest to each listener

Spotify has asked you, as a product manager, to design its recommendation engine: the part of the product that decides which audio to put in front of ...

Product Design & StrategyProduct Design & ImprovementRecommendation Systems
0
0
7 people solved
Mar 17, 2024
Meta logo
Meta
Hard
Data Scientist

Analyze Change in App Metrics and Feature Impact

Analyze Change in App Metrics and Feature Impact Scenario A consumer app has either launched a new feature or observed a sudden change in a key metric...

Analytics & Experimentation
5
0
55 people solved
Aug 4, 2025
HP logo
HP
Medium
Product Manager

Explain How Amazon Price-History Trackers Gather Prices and Send Drop Alerts

Explain how third-party price trackers for Amazon work: the websites and browser extensions that show how an item's price has changed over time and al...

System DesignTechnical Tradeoffs for PMsSystem Design Fundamentals
0
0
3 people solved
Aug 23, 2025
Asana logo
Asana
Medium
Product Manager

Handling an Engineer's Proposal for a Product Recommendations Module in Online Retail

You are the product manager for an online shopping website. An engineer on your team wants to launch a "Related products" feature that suggests other ...

Product / Decision MakingPrioritization & TradeoffsExperiment Design (A/B Testing)
0
0
10 people solved
Jul 16, 2025
Luma AI logo
Luma AI
Hard
Machine Learning Engineer

Implement and visualize in-place augmentations

Implement and visualize in-place augmentations Task: Build a Reproducible Augmentation Pipeline for Grayscale Digit Denoising Context You are training...

Machine LearningComputer VisionML Coding
41
0
757 people solved
Jul 17, 2025
Meta logo
Meta
Medium
Data Scientist

Retrieve Ad Metrics and Rates for Last 7 Days

ads +--------+---------------+----------+ | ad_id | advertiser_id | ad_type | +--------+---------------+----------+ | 101 | 1001 | image...

Data Manipulation (SQL/Python)
2
0
30 people solved
Aug 4, 2025
Uber logo
Uber
Hard
Data Scientist Locked

Design station experiment with interference and rush-hour spillovers

This question evaluates a data scientist's competency in experimental design and causal inference under interference and non-stationarity, covering sk...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
13
0
102 people solved
Oct 13, 2025
Figma logo
Figma
Hard
Data Scientist

Describe your most and least engaging work

You are interviewing for a Data Scientist role. The hiring manager asks: What kinds of work have been the most engaging for you, and what kinds have b...

Behavioral & LeadershipMotivation & Fit
18
0
188 people solved
Apr 9, 2026
Snapchat logo
Snapchat
Medium
Product Manager

Choosing Chunk Boundaries, Size and Overlap for Retrieval-Augmented Generation

In a retrieval-augmented generation (RAG) system, source content has to be split into pieces before it is indexed and searched. How would you decide h...

Machine LearningRetrieval-Augmented Generation
0
0
4 people solved
Apr 21, 2026
Bloomberg logo
Bloomberg
Medium
Data Engineer

Write PostgreSQL string-manipulation query

You are given a PostgreSQL table clickstream(session_id TEXT, page TEXT, query TEXT, ts TIMESTAMP). The page column contains full URLs like 'https://s...

Data Manipulation (SQL/Python)
3
0
57 people solved
Sep 6, 2025
Meta logo
Meta
Hard
Software Engineer

Design an e-commerce price tracking service

Design a backend system for an e-commerce price-tracking service. Users can track products from a large online retailer, view historical prices, and r...

System Design
3
0
48 people solved
Mar 23, 2025
Slack logo
Slack
Medium
Product Manager

Explaining Your Motivation to Join Slack as a Product Manager

You are interviewing for a product manager role at Slack, and the interviewer asks why you want to work there. Give the answer you would give in the r...

Behavioral & LeadershipMotivation & Fit
0
0
8 people solved
Dec 22, 2024
Meta logo
Meta
Medium
Software Engineer

Solve classic LeetCode problems

Question LeetCode 215. Kth Largest Element in an Array LeetCode 249. Group Shifted Strings Variant of LeetCode 56. Merge Intervals extended to 2-D rec...

Coding & Algorithms
10
0
69 people solved
Jul 29, 2025
Google logo
Google
Medium
Data Scientist Locked

Assess education–income effect credibly

Assess whether regressing income on a college-attendance dummy for 1,000 surveyed Mountain View residents recovers the effect of college on income, th...

Analytics & Experimentation
11
0
77 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Compute survey rates and bias-correct ratings

Today is 2025-09-01. Use the schema and sample data below to answer A and B with SQL (standard SQL; you may use CTEs and window functions). Assume tim...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
4
0
73 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Designing a Workplace Meal Product for a B2B Food Delivery Startup

You are a product manager at a startup whose business is delivering food to companies rather than to individual consumers. What would you design? `hin...

Product Design & StrategyProduct Sense
1
0
14 people solved
Aug 24, 2024
Uber logo
Uber
Hard
Software Engineer

Determine Whether a Word Exists in a Character Grid

Given a 2D character grid and a word, return whether the word can be formed by moving horizontally or vertically between adjacent cells without reusin...

Coding & Algorithms
1
0
26 people solved
Apr 17, 2026
Google logo
Google
Hard
Data Scientist

Choose a precise A/B test primary metric

A/B Test: Choose One Primary Metric for a Home-Screen CTA Color Change You are running an A/B test for an app that changes the color of its primary ho...

Analytics & Experimentation
9
0
76 people solved
Oct 13, 2025
TikTok logo
TikTok
Medium
Software Engineer

Solve pair-counting and account-merging problems

Problem A — Count qualifying products You are given two integer arrays A and B, and an integer T. For each element a in A, count how many elements b i...

Coding & Algorithms
5
0
86 people solved
Dec 8, 2025
Meta logo
Meta
Medium
Product Manager

Meta Product Sense: Building Something for Plant Lovers and Gardeners

You are a product manager at Meta and have been asked to design a new product for gardening. Decide who it is for, what it does, and how you would kno...

Product Design & StrategyProduct Sense
0
0
8 people solved
Mar 12, 2025
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