They use external HR to search and interview you on a first stage. After they have the second stage with a manager and the third stage is task presentation. It was quite smooth and active

First of all I had a skype call with a member of staff from the HR team. She then put me in touch with the hiring manager, with whom I had a telephone interview. After that, I was invited down to the London office for a face to face interview with a few members of the team (the final stage).