I applied through a staffing agency. The process took 3 months. I interviewed at CN (Chicago, IL) in Sep 2011
Interview
Was good face-to-face interview, not tough...but that depends on interview of course. Was screen first by recruiting firm over a month, then had one phone interview, then face-to-face interview. Once negotiated salary took over month to go through security and drug checks/tests. I think the interview process varies greatly in this corporation.
Interview was requested less than 24 after applying to job. Simple single interview, was updated within one week. Interview was with two people, one asking the questions, the other taking notes. All communication was quick and via email