I applied online. The process took 2 weeks. I interviewed at NHS (London, England) in July 2018
Interview
Brief interview about yourself and your knowledge of the NHS and numerical and literacy competency tests. Both sections were very easy and designed to check your suitability for the role
Good interview process, friendly staff. They asked me standard interview questions like why do I want to work with the NHS. Heard back within 2 weeks and I was offered the role.