I applied through a staffing agency. The process took 1 day. I interviewed at Great Ormond Street Hospital (London, England) in Aug 2017
Interview
First stage - CV application was chosen and an interview was arranged.
Second stage - Attending the interview. Interview was with 3 people that dealt with the different aspects of the department.
There were no tests required. It was quite an approachable interview.
Third stage - Wait to here if you received an offer.