Before asking, I know that Semi got hired by his knowledge of html/css and javascript and PHP. Obviously html/css is going to be important in coding for a website. A lot of the backend stuff we do (like item uploading, granting prizes, et cetera) is in PHP and Semi has had plenty of projects working on that. Javascript is cool for games and event games and all the games! Other than that I'd have to ask, but I know that Coda is cool with hiring somebody who knows any language really well because learning a new one is not too hard after the first.
Pfff code? I can't do that for serious! xD
But I am on the layout design team which happens to have been merged in with the coding team. We're technically called "Developers" now so we don't have like 10000 green names that don't pixel.