Juhi T. answered 06/02/19
Experienced full stack developer w/ focus on backend development
There are a couple different types of web developers.
UI/UX - design of the user's front end experience
Front End - develop the JavaScript + html + css elements
Back End - develop the API and other "back end" elements this may sometimes include database elements
Database - develop queries to create, read, update, delete - data in the db based on the users need
Full Stack - develop everything from database, back end and front end. You may also have to consider design of the user's experience in your work if there isn't a separate designer
Depending on the type your general job responsibility changes. But a web developer's responsibilities will usually be some mix of the above