These developers are responsible for the layout and aesthetics of the app. The developer writes code that allows a user to run a webpage or a browser on their smartphone or PC, meaning they are responsible for ensuring multi device compatibility, as well as interface compatibility with a variety of screen sizes, for consumer usage purposes.

Front-end developers must know how to create User Interfaces (UIs), and User Experiences (UXs) with JavaScript, CSS, HTML, and UI frameworks among others.

Full-stack ReactJS Developer: Full-stack developers are the ones who are skilled in both front-end and back-end technologies and techniques. They are proficient ReactJS developers accountable for developing user interfaces, building servers, databases, and websites, and coding for mobile platforms and website functionalities.

A full-stack developer oversees the entire project, from its initiation to completion. They need to possess organizational skills and attention to detail as they are responsible for ensuring the responsiveness of the application, designing front-end architecture, and collaborating with graphic designers on website design features.