Functional programmer to the bones, though I only speak Haskell as a second language still. Would love the fluency to be considered a native speaker! Working on it. I work in a .Net house. I write F# every chance I get, but the team is C#. I'll often write a small project in Haskell, then translate that to F#, then rewrite it in C#--just in case I win the lottery, and my team needs to support the project. Ha!