I applied through college or university. The process took 4 months. I interviewed at Principal Financial Group (Des Moines, IA) in Jan 2014
Interview
First round interview was a phone screen with HR, followed by an interview at home office. The home office interview consisted of a cocktail party and seven 1:1 interviews. The interviews were difficult but the cocktail party the night before allowed you to get to know your interviewers beforehand.
Interview questions [1]
Question 1
Why do you want to work for Principal, what interests you about this job, where do you see yourself in 5 years, situational questions