I applied through a recruiter. The process took 6 weeks. I interviewed at Mars
Interview
3 interviews. Telephone. Face to face with a presentation on a case study shared either before or on the day on interview and final interview with senior team. Each lasted almost an hour.
online application followed by phone interview. Then put through to an assessment day. Some of the applicants sent home half way through, with two people going through to final interview on the same day.
I applied through an employee referral. The process took 2 weeks. I interviewed at Mars in Jan 2017
Interview
HR first round telephone interview - competency based, getting to know you. Second round, assessment center (group exercises, prepared presentation and unprepared case study). Final round with either GM or Director, competency and personal based.