A GoToWebinar developer works on creating, improving, and maintaining the GoToWebinar platform. They work on backend development, ensuring server stability and data management. They also work on front-end development, focusing on user experience and interface design. They may develop new features, fix bugs, or improve the platform's performance and security. They collaborate with other developers, project managers, and stakeholders to align the platform with user needs and business goals. Additionally, they may integrate the platform with other software and ensure it complies with various regulations. Furthermore, they may need to provide technical support and create documentation.