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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
Snowflake logo
Snowflake
Medium
Software Engineer

Design an object store with deduplication

System Design Prompt Design a simplified cloud object storage service (similar to an object store) that allows users to upload and download files. The...

System DesignFile & Media Storage
66
1
526 people solved
Dec 15, 2025
Zomato logo
Zomato
Medium
Product Manager

Zomato Personalization: Redesigning How the App Suggests Restaurants and Dishes

You are interviewing for a product manager role, and the interviewer asks how you would improve recommendations in Zomato, the food-delivery and resta...

Product Design & StrategyProduct Design & ImprovementPersonalization
0
0
10 people solved
Aug 8, 2026
Upstart logo
Upstart
Medium
Software Engineer Locked

Add Dramatic Punctuation to Text

Transform text by replacing periods inside each non-whitespace token and adding the required dramatic suffix while preserving every whitespace charact...

Coding & Algorithms
9
0
76 people solved
Jul 27, 2026
Voleon logo
Voleon
Medium
Site Reliability Engineer Locked

Count Palindromic Substrings by Expanding Around Centers

Count every contiguous palindromic substring occurrence in a string, treating equal text at different positions as separate results. Include single ch...

Coding & Algorithms
14
0
155 people solved
Aug 10, 2026
Pinterest logo
Pinterest
Medium
Product Manager

Turning Pinterest Browse-Only Users into Savers: Engagement Improvement Plan

Some Pinterest users scroll and search through Pins but seldom save anything to a board or pin content of their own. As the product manager, how would...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
7 people solved
Sep 1, 2026
DoorDash logo
DoorDash
Hard
Data Scientist

Evaluate Biker Feature Success

DoorDash is considering launching Biker Mode, a feature for Dashers who deliver by bicycle. Biker Mode may help bicycle Dashers identify suitable shor...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
81
0
760 people solved
Apr 25, 2026
Snapchat logo
Snapchat
Hard
Machine Learning Engineer Locked

Find the Smallest Range Covering K Sorted Lists

Find the narrowest inclusive range containing at least one value from each of several sorted integer lists. The prompt defines duplicate handling, neg...

Coding & Algorithms
10
0
91 people solved
Aug 28, 2026
Amazon logo
AmazonSnowflakeGoogle
Hard
Software Engineer

Minimum Semesters with Prerequisites and a Course Limit

Problem Courses are labeled 1..n. Each relation[prev,next] requires prev to be completed in an earlier semester than next. Take at most k courses per ...

Coding & AlgorithmsDynamic ProgrammingBit Manipulation
1
0
11 people solved
eBay logo
eBay
Easy
Applied Scientist

Docker optimization, container fundamentals, and CI/CD for an ML model service

You maintain a Python machine learning inference service that is packaged as a Docker image and shipped to production through an automated pipeline. T...

Software Engineering FundamentalsMLOps & Model ServingCI/CD & Deployment
2
0
30 people solved
Sep 24, 2026
Palantir logo
Palantir
Medium
Software Engineer

Group employees by shared interests

Given N employees, each with an integer id and a set of interests (strings), write an algorithm to find all employees who share at least one common in...

Coding & AlgorithmsArrays & Strings
39
0
417 people solved
Jul 15, 2025
Apple logo
Apple
Medium
Product Manager

Apple System-Level Feature That Nudges Users Toward Climate-Friendly Habits

You are a product manager on the team that builds Apple's operating systems. Design a feature, built into the OS itself, that encourages people to beh...

Product Design & StrategyProduct SenseMetrics & KPIs
1
0
10 people solved
Sep 12, 2026
Datadog logo
Datadog
Easy
Software EngineerSenior+ Locked

Engineering Manager Interview: Your Technical Contribution and an Annoying Teammate

A hiring manager conversation for an engineering manager role: introduce yourself, explain your own technical contribution to a project you led, and d...

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
6
0
66 people solved
Sep 5, 2026
Waymo logo
Waymo
Medium
Machine Learning Engineer

Debug Tensor Conversion Bugs

You are given a small tensor utility library used in distributed numerical code. The implementation has several bugs related to aliasing, array conver...

Coding & Algorithms
14
0
136 people solved
Nov 27, 2025
Close logo
Close
Medium
Software EngineerSenior+

Rate Your Own Python Skills on a 1-10 Scale and Justify the Number

A recruiter screen for a senior or staff software engineering role opens with introductions to the company and the position. The recruiter then asks y...

Behavioral & LeadershipMotivation & FitProgramming Languages
0
0
7 people solved
Oct 16, 2026
Optiver logo
Optiver
Medium
Software Engineer

Days Between Two Calendar Dates

Days Between Two Calendar Dates You are given two dates as strings, each in the format YYYY-MM-DD. Write a function that returns the number of days be...

Coding & AlgorithmsMath & Number Theory
21
0
155 people solved
Apr 21, 2026
ByteDance logo
ByteDance
Hard
Machine Learning EngineerNew Grad

Minimum Number of Rooms to Host a Set of Possibly Overlapping Meetings

You are given the start and end times of a set of meetings. Every meeting must be held in a room, and a room can host only one meeting at a time. Retu...

Coding & AlgorithmsIntervals & SchedulingHeaps & Priority Queues
3
0
29 people solved
Aug 20, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Recover from a Missed Deadline

Develop an honest missed-deadline story that traces the original commitment, early warning signs, stakeholder communication, and recovery choices. Com...

Behavioral & LeadershipFailure & LearningOwnership & Execution
38
0
614 people solved
Jul 15, 2026
Rippling logo
Rippling
Medium
Software Engineer

Design delivery driver payment system

Design a delivery-driver payment system Design and implement an in-memory, object-oriented service that tracks delivery-driver work and computes payro...

System DesignLow-Level Design (OOP)Payments & Ledgers
137
1
1880 people solved
Jul 29, 2025
LinkedIn logo
LinkedIn
Hard
Software Engineer Locked

Reduce Stale Listings in a Job Marketplace

Design an auditable system that scores stale job listings from mixed-source evidence and applies graduated, reversible actions with employer appeals.

System Design
5
0
102 people solved
Sep 1, 2026
Roblox logo
Roblox
Medium
Software EngineerSenior+ Locked

Driving a Project Forward Despite Internal Opposition

This question evaluates a candidate's ability to drive initiatives and influence others without formal authority, a core competency in behavioral and ...

Behavioral & Leadership
8
0
95 people solved
Jun 10, 2026
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