Mechanical Engineering undergradute. Go to macro-guy in every internship I've had.
My expertise is in VBA, though I am self-taught (mostly through Stack Overflow). I'm also versed in Java, Matlab, SQL, and Ruby on Rails.
I contribute primarily to the VBA tags on SO since joining in June '16, but I am also an attentive lurker on a few other stack sites including Law, Finance, and Physics.