[Web Services] <Front-End> Implement screen + functionality based on design files Screen Implementation (Web Publisher) - HTML, CSS, JS Connect to API screen to implement functionality - React, Angular, Vue (required x) <Back-End> Language of use (framework): Spring, Django, JavaScript (using Nodejs/Rails), etc. Database (data management): mongoDB, PostgreSQL, MySQL (using), MariaDB [Disclosure/Deployment of Servers] Server Computer Lease: Obtain IP and domain addresses using Amazon web services, Google Cloud Platform, Microsoft Azure, and Naver Cloud Platform