I read that as someone not native in English trying to say "staffer" or "employee" but I don't know anything about the structure of organizations behind ethereum, whether it has a lot of employees or whether they really mean "contributor".

Edit: I see the title has been edited to match the DOJ website rather than this seemingly ungrammatical summary.

We've changed the title.

Yes, but HN isn't exactly a bastion of correct grammar. Also, it shouldn't be capitalized.