An Iterative Methodologies developer works on software development processes where the project is broken down into smaller cycles or iterations. They design, code, test, and debug each iteration, refining the software incrementally. This approach allows them to incorporate feedback and make necessary changes throughout the development process rather than at the end. They work in cross-functional teams, collaborating with stakeholders to understand their needs and incorporate them into the software. Their goal is to deliver a functional product at the end of each iteration, improving the software quality and aligning it more closely with user requirements.