"Bootcamp Grads" is a pretty broad phrase; we might want to start using more precise language. An grad from an 8-week bootcamp will have a different skill set than someone who spent 18, 48, 72 weeks in a bootcamp program.
Also, Thoughtbot has a somewhat good guide to running an apprenticeship: https://github.com/thoughtbot/apprenticeship
It could be adapted without much work to hiring bootcamp grads.