I applied online. The process took 3 months. I interviewed at NHS (Birmingham, Angleterre) in Jul 2016
Interview
involved online form with motivational questions and how you satisfy NHS values
online aptitude tests
Interview was in stations testing different aspects of the role, including leadership, science skills, technical skills (including coding), etc.
Nicely structured and good friendly interviewers made the whole process much easier and nicer and expected. Lots of resources out there to get you prepared for such an interview .
Interview questions [1]
Question 1
Tell us about a time you demonstrated leadership skills in a team
