You know, I am also a Web Developer and Web Designer. Here's the meaning of a Web Developer:
A web developer is a software developer or software engineer who is specifically engaged in the development of World Wide Web applications, or distributed network applications that are run over the HTTP protocol from a web server to a web browser. Many web developers are also skilled in web design, information architecture, usability engineering, web content management systems, web server administration, and search engine optimization.
Due to the increasing complexity of web applications in recent years, developers often specialize in either frontend or backend work. Frontend developers focus on the user interface and typically work with technologies such as ECMAscript and its variants (JavaScript, JScript, ActionScript), CSS, and the DOM. Backend developers usually focus on the interaction between server-side frameworks and databases. Some backend developers maintain databases directly on their web servers, while in other situations the backend developer calls data, managed by a database administrator, on an external system.