Yes, together with our amazing Community team 
For badges, I think we use just about all the ways in which you can grant them (the GitHub ones come from the plug-in, we have internal api automations for our Academy, we have some that are done via custom data explorer SQL queries and lastly some that are granted manually).
Unless the question was purely how they look, in which case I can’t take credit for that at all. My artistic skills wouldn’t allow for it 