I'm passionate about software development, and a big fan of lean/agile methods and systems thinking (they call it DevOps now). I have experience with a wide range of open-source projects and development tools, especially in Java-land.
Taking care of code quality and infrastructure is something I end up doing in every project. I'm also concerned about how teams work together, and I often push agile practices to this end. I dig test-driven development, pair-programming, whiteboards and everything that just makes sense for humans working together.
Also on the micro-level I like to optimize: I'm obsessed with keyboard shortcuts, I prefer command-line over clicking around with mouse, and I'll hack away in any scripting language, whether I know it or not, in order to automate boring tasks.
I'm also a big fan of developer communities across companies, and I contribute by blogging and giving presentations at local meetups and conferences.
In early 2013, I created GitMinutes, a podcast for proficient Git users.