Web developers take design from the web designers and develop it into a live, fully functional website.
A backend developer builds the more advanced functionality of the site, such as the checkout function on an ecommerce site.
A full-stack developer would do both.
In short, a web designer is the architect, while the web developer is the builder or engineer.
The role of the web developer is to build and maintain websites.
Web developers are responsible for building a product that meets both the client’s needs and those of the customer or end user.
Web developers collaborate with stakeholders, clients and designers in order to understand the vision: how should the final website look and function?
A large part of web development also revolves around identifying and fixing bugs in order to constantly optimize and improve a website or system. Web developers are therefore keen problem solvers, regularly coming up with solutions and workarounds to keep things running smoothly.