Three stages. One phone, one online, and then one onsite. Although the onsite interview I think was more of an orientation. They reached out to me after a month of applying, so I believe that they were looking for summer positions to start at the same time as their intern program

Got an initial on campus interview, then made it to the final rounds in Peoria. Got us down there the night before, two people who has been in this program (LTDP) for less than 3 years took us out for dinner at an steakhouse (johnny's), second day, three behavioral interviews with three different people (1 on 1 interviews), then drug test and a tour in one of their facilities