Very simple apply and a recruiter will reach out to you through email. Then you would setup an initial interview on the phone and go through the whole interview process from there all in all its pretty straightforward.
I applied through a staffing agency. The process took 4 weeks. I interviewed at Caterpillar (Peterborough, England) in Feb 2020
Interview
There was a phone interview for the first interview. For the second interview it was in person. The interview process was generally OK but I feel an internal decision had already been decided.