Board Thread:ROBLOX help and discussion/@comment-9288690-20130922182726/@comment-6591198-20150109220623

But just because minimum age laws allow 14 year olds to work does not mean ROBLOX will hire people under the age of 18. Most -if not all- of their current job hirings require at least a bachelor's degree and two years of field experience. Naturally, that will place almost all applicants above the age of 18 (unless the person was a child genius who got his bachelor's degree at 12).

I believe for a while they had a summer internship program where they hired users under 18. That has since changed, and as of the 2013 summer hiring, they would not take applicants that were not either in college or graduated w/ a relevant degree.