I'm a Developer.
In my professional life I work with whatever tools are needed for the job. In the past that has included html/css/javascript, php, c, objective c, as3/flex, perl, python, and (we're going way back, now) coldfusion.
Personally, I play with whatever looks interesting at the time, including lua, ruby, and game development frameworks like moai, corona and unity.
Most recently, over the past two years, I gleefully lept into a rigorous trial by fire, taking javascript and the html dom to places that I didn't know were possible.