A CATIA Developer is primarily responsible for creating, designing, and modifying models using CATIA software, a leading CAD tool used in various industries like aerospace, automotive, and industrial machinery. Their tasks include developing detailed design specifications, testing software applications, troubleshooting any technical issues, and providing technical support to the team. They may also be involved in creating simulation models for analyzing design performance. They work closely with design engineers, understanding their requirements and transforming them into functional software models. Additionally, they need to stay updated with the latest technological advancements in the field of CAD/CAM/CAE.