I applied online. The process took 1 week. I interviewed at Mercer in Sep 2015
Interview
I was given a call by an HR representative. After about 10 mins of discussing he asked me if I have relevant experience in the field (which was clear from my CV that i didn't) and proceeded to tell me that it is a requisite but I will still be considered even though it was obvious I would't. Didn't even receive a rejection email
I applied through college or university. The process took 1 week. I interviewed at Mercer (Seattle, WA) in Jan 2011
Interview
Standard process with 3 interviews with investment consultants. They are all in various ranks with progressive difficulty. The total process took about 5 hours. Keep in mind this took place in 2011 and staffing for HR has changed.
Interview was relatively straight forward. Approx an hour long, Mainly questions based on C.V. qabout colllege course and previous work experience, interests etc and some about position including where you see yourself in the company in 20 years and things like that. Some questions on topical financial issues. mainyl trying to gauge your personality more than anything else