I already work for the group in another department and applied for a branch role through internal intranet, but would imagine external candidates would apply online and complete simple numerical test then get invited to an interview. The process took around 2 weeks I'm still waiting for a response as to whether or not I succeeded. I was supposed to have been interviewed by a branch manager and a senior member of the local directors office but was only interviewed by the senior member on this occasion. The interview was based around the suitability for the role, what the candidate can bring to the role, and a variety of competency questions through a JEDI framework (Judgement, Execution, Direction and Influence) these should be answered using STAR (Situation Task Action Result).