I really love my job.
I'm a build engineer for a team of about 40 engineers developing embedded firmware. Most of my job has been implementing a fully automated continuous integration system, including providing our dayly and weekly. We're almost there, but still have some hiccups. I also sometimes play Git guru.
We're always learning, which is a lot of fun. As is the day to day problem solving in implementing new processes or fixes to those already existing. Personally, it's also been great for forcing me to come out of my shell. There's a lot of internal and partner customer support that goes with the job. Plus presentations and that sort of thing.
That sounds a lot like my job. PM me if you want to compare notes sometime. I've learned a lot in the process of setting up my current workplace with continuous integration and git source control. Been doing the whole tools/process improvement thing for about 10 years now.