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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
TikTok logo
TikTok
Easy
Data Scientist

Calculate Expected Draws for X > 0.8 in Uniform(0,1)

Calculate Expected Draws for X > 0.8 in Uniform(0,1) Scenario Quick probability check during a first-round screen to gauge statistical intuition. Ques...

Statistics & Math
10
1
87 people solved
Aug 4, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Find the Minimum Window Containing a Multiset of Characters

Return the shortest contiguous source substring containing every target character with the required multiplicity. Handle repeated and case-sensitive c...

Coding & Algorithms
3
0
27 people solved
May 22, 2026
Amazon logo
Amazon
Medium
Software Engineer

Solve sliding-window and heap problems

Question Design an algorithm using a sliding window to compute the maximum sum of any contiguous subarray of length k; explain time- and space-complex...

Coding & Algorithms
31
0
148 people solved
Aug 4, 2025
Upstart logo
Upstart
Medium
Data Scientist

Calculate User Revenue and Session Duration in Python

events +---------+------------+---------+---------------------+ | user_id | event_type | revenue | timestamp | +---------+------------+-----...

Data Manipulation (SQL/Python)
5
0
47 people solved
Aug 4, 2025
Booking.com logo
Booking.com
Medium
Product Manager

Refining a calendar app's sync-failure user story for backlog readiness

You are the product manager for a calendar app, and your team is focused on improving error handling. This user story is up for refinement: > As a use...

Product / Decision MakingRequirements & Launch Execution
1
0
11 people solved
Jul 11, 2024
Point72 logo
Point72
Hard
Data Scientist

Price a coin-doubling game rationally

Coin-Doubling (St. Petersburg) Game: EV, Log-Utility Pricing, Kelly Staking, and House Cap Context and assumptions - Single play: You buy one ticket t...

Statistics & MathProbabilityPuzzles & Brainteasers
9
0
117 people solved
Oct 13, 2025
Nash AI logo
Nash AI
Medium
Software Engineer

Implement Minesweeper click and print

Implement Minesweeper click and print Implement the Minesweeper click(row, col) operation and a function to print the board. Rules: ( 1) If the clicke...

Coding & Algorithms
11
0
88 people solved
Jul 26, 2025
DocuSign logo
DocuSign
Medium
Product Manager

Designing a Two-Sided Integration Marketplace for DocuSign

You are a product manager at DocuSign. The company wants a place where customers can discover and install apps that extend DocuSign or connect it to t...

Product Design & StrategyPlatform & API ProductsGrowth & Monetization
0
0
6 people solved
Mar 16, 2025
Coinbase logo
Coinbase
Medium
Product Manager

Explaining a Hard Technical Concept to a Non-Specialist Listener

An interviewer for a product-manager role at a crypto exchange asks you to pick a technically demanding idea and explain it to them on the spot. You c...

Behavioral & LeadershipCommunication & Stakeholders
0
0
8 people solved
Oct 15, 2024
LinkedIn logo
LinkedIn
Medium
Data Scientist

[SQL] Job Ad Metrics with Applicant Filter

Job Ad Metrics Analysis Task Table Structure Table: job_activity job_id INT candidate_id INT activity_type VARCHAR -- can be 'view' or 'apply' Require...

Data Manipulation (SQL/Python)
14
0
97 people solved
Apr 23, 2025
Cadence logo
Cadence
Medium
Machine Learning EngineerNew Grad Locked

Explain Transformer Positional Encoding

This question evaluates understanding of positional encoding in Transformer architectures, including how positional information is integrated into tok...

Machine Learning
5
0
41 people solved
Jan 5, 2026
Optiver logo
Optiver
Medium
Data Scientist

Make Two Apple Piles Equal With Doubling Moves

You have two piles of apples: the first pile contains a apples and the second pile contains b apples. In one move you choose one pile to be the receiv...

Coding & Algorithms
2
0
42 people solved
Mar 21, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Design a Distributed Rate Limiter

This question evaluates a candidate's understanding of distributed systems, rate limiting strategies, API design, consistency and scalability trade-of...

System Design
5
0
37 people solved
Jun 2, 2026
Moment logo
Moment
Medium
Frontend Engineer

Build a Race-Free Memory Card Game in React

Build a Race-Free Memory Card Game in React Implement the interaction logic for a React memory-card game. Every card has a stable ID and a match value...

Software Engineering Fundamentals
2
0
32 people solved
Apr 9, 2026
Shopify logo
Shopify
Medium
Product Manager

Define Goals and a North-Star Metric for Shopify's Third-Party App Marketplace

Shopify lets outside developers build apps that extend its platform and meet needs its merchants have. Your team owns the Shopify App Store, the marke...

Analytics & ExperimentationMetrics & KPIsPlatform & API Products
1
0
10 people solved
Mar 30, 2026
Microsoft logo
Microsoft
Medium
Product Manager

Rework Netflix Subscription Plans and Curb Password Sharing Outside the Household

You are a product manager at Netflix. Leadership wants to strengthen the subscription model, and you have been told that the current policy on passwor...

Product Design & StrategyGrowth & MonetizationProduct Design & Improvement
0
0
7 people solved
Dec 5, 2025
Bloomberg logo
Bloomberg
Medium
Product Manager

Describe your product leadership experience

Describe your product leadership experience Tell me about your product management background. Describe a product you owned, how you managed the roadma...

Behavioral & LeadershipProject Deep DiveRoadmapping & Planning
9
0
101 people solved
Jul 22, 2025
Meta logo
Meta
Easy
Data Scientist

Define engagement metrics and analyze comment distribution

You are a Data Scientist for a video platform. A PM asks you to: 1) Define metrics for “engagement” (they want a clear metric framework they can use i...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
13
0
104 people solved
Dec 6, 2025
Instacart logo
Instacart
Medium
Product Manager

DoorDash product improvement: get customers to order more often

DoorDash is an on-demand delivery app, best known for bringing restaurant meals to customers' doors. You are asked how you would increase user engagem...

Product Design & StrategyProduct Design & ImprovementGrowth & Monetization
1
0
14 people solved
Jun 8, 2025
Apple logo
Apple
Medium
Software Engineer Locked

Merge overlapping time intervals

This question evaluates competence in interval and array manipulation, sorting-based algorithm design, overlap detection, and efficient time/space com...

Coding & AlgorithmsIntervals & SchedulingSorting
17
1
151 people solved
Feb 12, 2026
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