She is in IT (as Lead Data Architect). What should she choose? Or is she acceptable as a reference? Thanks.

Hi Amazing people, I finally got my citizenship, and now I am applying for a first time passport. I have a friend who is a Lead Data Architect at a company, she is british living in the UK. The list of recognised professions (https://www.passport.service.gov.uk/help/confirming-identity) is not very ...