The full stack developer meaning is quite straightforward, it is a developer that can work on different layers of a web application. Typically this involves the front end, back end, databases, APIs and possibly deployment or infrastructure. A full-stack professional doesn't need to be proficient in all programming languages and frameworks. They are more likely to have a general idea about the way the major components fit together, and are able to participate in the development process. It's best to get a handle on the basics of web programming and gradually move into server-side programming and database technologies.