I applied online. I interviewed at Caterpillar (Peoria, IL) in May 2013
Interview
Caterpillar uses the STAR method, they usually us a three person panel. I had one interview, but I have heard instances where people interviewed more than once. Some could view the experience as intimidating.
Interview questions [1]
Question 1
Describe a challenge, your resolution, how it was implemented, and if it was successful.