Coupang Interview Questions
Practice the exact questions companies are asking right now.
Design an IAM system for services and users
System Design Prompt Design an Identity and Access Management (IAM) system for an organization/platform. The system must support: - Human users and se...
Find shortest distance between two islands
Problem You are given an R x C binary grid where: - 1 represents land - 0 represents water The grid contains exactly two 4-directionally connected isl...
Design large video upload for a YouTube-like app
System Design Prompt Design the video upload subsystem for a YouTube-like product that supports large video files. Core user flow 1. User selects a la...
Design a PKI for internal mTLS and certificates
System Design Prompt Design a Public Key Infrastructure (PKI) for an organization to issue and manage certificates used for: - Internal mTLS between s...
Compute minimal flips connecting two islands
Given an n x n binary grid of 0s (water) and 1s (land) containing exactly two disjoint islands (cells with 1 connected 4-directionally), return the mi...
Sort products by price and attention score
You are given a list of strings, each formatted as "product,price,attention". Parse the list into records and return the product names sorted to prior...
Describe your proudest project and dive deep
Behavioral Prompt: Project You’re Most Proud Of Context: Onsite software engineer behavioral interview. Choose one project and walk the interviewer th...