I applied through university. The process took 1+ week. I interviewed at Mercer (Louisville, KY) in Oct 2016
Interview
From college recruiting I was invited to an interview weekend comprising of a cocktail party and a second day lunch. In the afternoon, I met with HR, an analyst, and two supervisors for the team, all individually. They were all very friendly.
Interview questions [1]
Question 1
Very general questions, a lot had to do with teamwork, only the HR guy asked typical "interview" questions. Conversational.