Phone interview with a recruiter and successive interview in London's offices. I was interviewed by three members of the staff: 1 recruiter and 2 experts from the marketing team. The interview was motivational based and not very technical.

There is a four(ish)-step process and it is roughly detailed on the company website. With your initial application documents, you are asked to research an industry trend. Afterward are online assessments (reasoning + personality), video interviews (included time-limited prep + answer) and the process concludes with an on-site presentation. The interview process is lengthy, but overall it makes sense and seems well-designed to engage you with the company/industry prior to taking the position. Brush up on behavioral questions; they heavily emphasize personal motivations and research skills.