Phone interview followed by group interview. All very laid back and relaxed. Phone interview was just general motivation and competency questions. Talked through CV and motivation for role. A few technical questions about PPC so would recommend revising some basic topics beforehand but otherwise very straightforward. Group interview was a week later at the offices in London Bridge. It lasted a few hours and consisted of a short presentation about yourself followed by a group task. I then had a very short individual interview to cover motivation and preferred start date