I applied online. The process took 1 week. I interviewed at UPS (Portland, OR) in July 2014
Interview
Basically just ask you if you can work quickly and lift heavy. They explain the hours and how they only really give you 3.5 hours a day on average. They seem like they would take any able bodied person for the job.
Setup an appointment with the interviewer. Interviewed with a large group of applicants. They took us on a tour of the building during one of the shifts. It gave us an idea the job consists of and what we would be doing.
There was no interview at all. You are automatically hired and put to work within 20 mins of your first day. You have 30 working days to see and prove if you are fit for the job.
Interview questions [1]
Question 1
There was no interview. You are automatically hired.