A IDE developer uses the Integrated Development Environment for writing, running, and debugging code. They create, test and deploy applications in a cloud-based environment, allowing for real-time collaboration with other developers. The developer utilizes various programming languages like Python, JavaScript, PHP, etc. They can use IDE to clone the entire development environment, share their workspace with other developers, and even pair program. A IDE developer also handles serverless applications, benefiting from the ability to switch between remote and local testing and debugging sessions. They ensure the continuous delivery of quality software.