Well, lots of kinds. I work a lot in front-end web dev, so I'm immersed in HTML, CSS/SCSS, Javascript, etc. Server-side, most of my experience is with PHP, but I've also worked with Python. I can code in Java, but I find it to be a joyless enterprise. At my current day job I mostly work with Perl, which is antique but charming.

My beard is getting gray enough that most tech places don't want me anymore, experience be damned. And my other skills (writing, editing, illustration, sound design, narration) are unlikely to earn me a living. It's an uncertain place to be.