A **full-stack developer** is someone with the ability to work on all "layers" of software development. 

The three layers of a standard web application are:
 - **Presentation** layer.
 - **Business** layer.
 - **Database** layer.

Although full-stack developers are usually capable of working with each layer, they're not necessarily experts on any one in particular.

Generally, the main areas a full-stack developer focuses on are divided into two: Front-End Development and Back-End Development.

### Front-End Development


Front-End development (or web/app design) is focused on the **Presentation** layer i.e. the user interfaces.

The basic stack of front-end development includes:
- HTML
- CSS
- JavaScript

Usually front-end developers will also work with frameworks / languages such as `React` and `Angular` to add further functionality on top of JavaScript.

### Back-End Development


Back-End development is concerned with **server-side** management, and handling communication between browsers and databases.
Back-End development is focused on the **Business** layer and the **Database** layer.

The most popular back-end languages are `Node.JS`, and `Python`.





What is a full-stack developer?

A full-stack developer is someone with the ability to work on all “layers” of software development. The three layers of a standard web application are:  Presentation layer. Business layer. Database layer.  Although full-stack developers are usually capable of working with each layer, they re not necessarily experts on any one in particular. Generally, the main areas a full-stack developer focuses on are divided into two: Front-End Development and Back-End Development. 