"He got it up and running quickly, too. He's a hero around here; talk about job security."

He'll have job security because he sounds like the type of guy who looks for ways to make improvements wherever he's at, which is a trait that a large part of the workforce seems to be missing. I'd hire this guy (and guys like him) and find a place for him in my company (if I had a company) because they look for ways to make things better, faster, cheaper, without it being in their job description.