Frontend developer.

Frontend developer creates the client side website, frontend developer refers to how a web page looks. And ensures proper functionalities is working properly or not in web applications.

Frontend developer creates UI interface of website.

Backend Developer.

A Backend developer creates server side interaction with website . Its not visible in website and all backend credential of user or client is stored in database management system.

Major role of backend developer is to manage communition between site/Appusers and server.