An entry-level front end web developer helps create the user interface and interactive aspects of a website. As an entry-level worker, you assist members of the web development team who program websites using HTML, CSS, and JavaScript code. As a junior member of a web development team, your duties include testing site code or handling specific aspects of a design and development project. Your responsibilities often include preparing visual elements using code and image editing software such as Photoshop or InDesign. In addition to web sites, entry-level front end developers program and test mobile and web applications.