At work I do mostly database and ERP work, as well as PHP and Javascript (full stack) web development. I've got my hands in a lot of IT "stuff" though - from building computers to writing powershell scripts and programming digital signage.
The vast majority is behind-the scenes - tools on the intrant that shouldn't really see the light of day. There are a few things that I've built with open source tools that end up somewhere public - and so I'm allowed to show them off.