I work at an F1 team: A guide to getting a job in F1

I work at one of the teams and my sibling is starting university soon so I'm making a guide for their friends because many keep asking how to get a job in the teams. Figured people may find it useful to read through and use themselves, happy to answer any questions too, just to make people aware though I'm not trackside, or related to software / data, or aero so unfortunately can't answer much on those areas. For questions related to university / degree you should study it's worth checking to see if it's already answered Here .