Following a lengthy online application (numerous essay type questions with word limits of 500 words each), followed by SHL style verbal, numerical and logical tests, I reached the phone interview stage. This comprised of the typical behavioural questions, as well as an amount of time dedicated to case studies where the interviewer would provide a scenario of which a recommended response was required.
After a number of weeks, I heard back finding out that I got through to the Assessment Centre. By this time, I had already completed a number of final stage Assessment Centres at various competitors (some successfully, too) - this was by far the most comprehensive day despite the least amount of candidates amongst us (around eight of us). The day was packed with a role play scenario, group debate, analytical presentation, panel interview, as well as a final 'drink' by the bar (I am sure we were under close scrutiny at this stage!).
The most challenging process I had experienced (in my opinion, more so than that of the Big Four and various other consultancy firms and FMCG organisations), though I believe this can only be a positive sign of how seriously they take their graduate intake, especially given that it is a three year scheme.