I applied online. The process took 2 weeks. I interviewed at WTW (London, England) in Dec 2015
Interview
Online application followed by tests. Telephone interview booked after about two weeks. Asked three competencies - Building a relationship, Teamwork/collaboration and Thought Innovation. They probe your examples thoroughly. Then standard q's, about your motivations, basically why towers watson and why you chose the role. Interview was scheduled for an hour and then lasted around 40 minutes.
Interview questions [1]
Question 1
Tell me about a time you built up a relationship, preferably over several years.