A JavaFX developer designs, develops, tests, and deploys desktop applications using JavaFX, a software platform for creating rich internet applications. They utilize JavaFX's tools and libraries for creating user-friendly interfaces, integrating media content, and enabling dynamic visual effects. Their work involves writing clean, reusable code, debugging programs, and ensuring the software's compatibility across different systems. They collaborate with UX/UI designers to implement design features, optimize performance, and ensure user satisfaction. Additionally, they maintain software documentation for future reference and updates. They also follow modern programming practices and stay updated with new JavaFX updates.