I was already an employee. Cat can be hard to get in from the outside. They do situational interviews but they look internally first before they look outside the company. Many of the mid-career guys know tons of people so much of the process is calling or emailing personal networks for candidates. There is also another system to identify internal candidates. Once again very hard for external candidates to get into Cat. Your resume must be impeccable and then you will need to learn the large volume of initiatives quickly to last.