Type of work performed
Modern web applications often contain three or more tiers, and depending on the size of the team a developer works on, he or she may specialize in one or more of these tiers – or may take a more interdisciplinary role. A web developer is usually classified as a Front-end web development or a Back-End Web Developer. For example, in a two-person team, one developer may focus on the technologies sent to the client such as HTML, JavaScript, CSS, ReactJs or AngularJS and on the server-side frameworks (such as Perl, Python, Ruby, PHP, Java, ASP, ASP.NET, Node.js) used to deliver content and scripts to the client. Meanwhile, the other developer might focus on the interaction between server-side frameworks, the webserver, and a database system.