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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
Mintlify logo
Mintlify
Medium
Software EngineerSenior+

Recreate a Card Interface from a Screenshot

Recreate a Card Interface from a Screenshot Build a frontend component that matches a supplied screenshot of a card containing badges or chips. Explai...

Software Engineering Fundamentals
2
0
24 people solved
Apr 30, 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
Apple logo
Apple
Medium
Machine Learning Engineer Locked

Design a grounded voice assistant

This question evaluates understanding of grounding strategies for large language models, causes and mitigation of hallucinations, response quality eva...

ML System DesignLLM ApplicationsLLM Evaluation
10
0
128 people solved
Jan 25, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Easy
Data Scientist

Determine knights and knaves roles

Determine knights and knaves roles Knights and Knaves Logic Puzzle Context On an island, each person is either: - Knight: always tells the truth. - Kn...

Statistics & Math
19
0
132 people solved
Aug 4, 2025
Airbnb logo
Airbnb
Medium
Data Scientist

Aggregate User Activity, Fit Regression, Interpret Coefficients

user_metrics +----------+------------+---------+--------+-----------+ | user_id | activity_dt| variant | clicks | purchases | +----------+-----------...

Data Manipulation (SQL/Python)Regression & Statistical ModelingSQL
119
0
396 people solved
Jul 12, 2025
Uber logo
Uber
Medium
Product Manager

Uber Dispatch Trade-off: Simultaneous Offers to Nearby Drivers vs. One-at-a-Time Offers

Uber can tell drivers about a new ride request in one of two ways. It can alert every driver in the surrounding area at the same moment, or it can off...

Product / Decision MakingProduct SenseExperiment Design (A/B Testing)
0
0
8 people solved
Apr 23, 2026
Snapchat logo
Snapchat
Hard
Software Engineer Locked

Determine escape path with blockers and spreading fire

This question evaluates graph traversal and grid-based pathfinding skills, including connectivity analysis, obstacle handling, and reasoning about tim...

Coding & Algorithms
5
0
86 people solved
Feb 11, 2026
Meta logo
Meta
Medium
Product Manager

Improving the Email Facebook Sends When a User Is Tagged in a Photo

You are a product manager at Meta. When someone tags a Facebook user in a photo, Facebook can let that user know by email. How would you make this ema...

Product Design & StrategyProduct Design & Improvement
0
0
7 people solved
Oct 23, 2025
Dropbox logo
Dropbox
Medium
Product Manager

Landing Page Redesign A/B Test: Success Metric, Sample Size and Launch Rule

You are a product manager at Dropbox, and your team has built a new landing page. Design an experiment that shows whether the new page is a success. `...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
1
0
8 people solved
Oct 27, 2025
Meta logo
Meta
Medium
Data Scientist

Compute shop visibility and intent metrics in SQL

Schema (PostgreSQL). Tables: users(user_id) shops(shop_id, shop_name, merchant_type) posts(post_id, shop_id, is_shoppable BOOLEAN, created_at TIMESTAM...

Data Manipulation (SQL/Python)
5
0
65 people solved
Oct 13, 2025
Citadel logo
Citadel
Hard
Software Engineer

Discuss a Project You Are Proud Of and How You Work

Discuss a Project You Are Proud Of and How You Work Use one concrete project to answer the following questions. Keep your account truthful and make yo...

Behavioral & Leadership
10
0
77 people solved
Mar 29, 2026
N2JSoft logo
N2JSoft
Medium
Product Manager

Phased Plan to Extend an Invoice Management Product into Purchase Requisitions

You own an existing invoice management system, the tool a finance team uses to receive, approve and pay vendor invoices. Lay out a roadmap for bringin...

Product Design & StrategyRoadmapping & PlanningProduct Strategy
0
0
7 people solved
Jan 14, 2026
xAI logo
xAI
Hard
Machine Learning Engineer

Design a house-price prediction workflow

Design a house-price prediction workflow Predicting Home Sale Prices: End-to-End ML Design Context You have historical home-sale records with features...

Machine LearningML System DesignFeature Engineering
8
0
131 people solved
Jul 17, 2025
Amazon logo
Amazon
Hard
Software Engineer

Design a scalable parking lot system

Design a scalable parking lot system System Design: Multi-Level Parking Lot Service Context Design a production-grade parking lot system for a large, ...

System DesignSystem Design FundamentalsLow-Level Design (OOP)
22
0
163 people solved
Jul 16, 2025
Squarepoint logo
Squarepoint
Hard
Data Scientist Locked

Analyze expectations, correlations, and investment strategies

This multipart Machine Learning question evaluates probabilistic expectation and stopping-time reasoning, combinatorial expectations in random permuta...

Machine LearningProbabilityTrading Systems
14
0
121 people solved
Nov 7, 2025
NVIDIA logo
NVIDIA
Medium
Software Engineer

Reconstruct tree from inorder and postorder

Given two arrays representing the inorder and postorder traversals of a binary tree with unique values, reconstruct the original binary tree and retur...

Coding & Algorithms
13
0
98 people solved
Jul 29, 2025
PayPal logo
PayPal
Medium
Data Scientist

Implement sliding-window device anomaly

Streaming detection algorithm: Implement a function process_logins(stream) that consumes a time-ordered stream of login events (user_id, ts, device_id...

Coding & Algorithms
7
0
85 people solved
Oct 13, 2025
Pinterest logo
Pinterest
Medium
Data Scientist

Implement and extend My Calendar III

Design and implement a booking system like LeetCode 732 (My Calendar III). Provide a class with methods: book(start, end) using half-open intervals [s...

Coding & AlgorithmsTreesIntervals & Scheduling
11
0
183 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Count partitions and equal-cost packages

Question Given a string itemCategories, count the number of ways to partition it into exactly two contiguous non-empty substrings (a prefix and a suff...

Coding & Algorithms
19
0
137 people solved
Aug 4, 2025
Snapchat logo
Snapchat
Medium
Machine Learning EngineerNew Grad Locked

Design a Product Tagging Pipeline

This question evaluates applied machine learning system design, multi-modal modeling, data engineering, and production deployment competencies involve...

ML System Design
8
0
66 people solved
Feb 2, 2026
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