I applied through an employee referral. The process took 3 weeks. I interviewed at Northwestern Mutual (Chicago, IL) in Aug 2016
Interview
Pretty straight forward interview process. Two phone interviews, both consisting of basic "getting to know you" questions, as well as understanding your college activities/accomplishments. Last is an in person interview with the head recruiter and managing director where you present a powerpoint presentation on yourself.
I interviewed at Northwestern Mutual (Hartford, CT)
Interview
Was told about the program and how I would need to get certified to sell life insurance in order to participate in the program. The interviewer was laid back and relaxed. It was a group interview.
I interviewed at Northwestern Mutual (San Jose, CA)
Interview
Three rounds with calls with the head of hiring and with the head of the department, all behavioral questions were asked at each round to get to know you and your network
I interviewed at Northwestern Mutual (Washington, DC)
Interview
Very basic and straightforward behavioral questions, nothing technical. Have a good idea of what you would be doing and why you want to work there so that you can speak to your skillset and how it aligns with the job description.