Applied online with CV, and then completed online testing which involved both a pattern/logic test as well as a behavioral test (i.e. what would you do in this situation?). A number of weeks later I had a brief phone interview out of the blue, where a couple of generic questions were asked about my motivations and background. At the testing day I completed a group exercise which involved devising and then pitching a solution for a start-up, followed by a Partner interview.