[booboofixer]

I'm way less experienced than you are but sort of started out closer to the kernel world (work involves using C mostly) than the webdev world. It's fun if you're interested in that sort of stuff. The things that mostly make you go "ugh" would be testing your work (can't let the kernel slip up, quality is important), the processes involved at some companies in committing something as simple as one line of code, and the lower upper-bar for salary. Maybe Microsoft is a bit wealthier than where I work though.