The best job I ever had was working on computer-aided engineering software. It was a difficult job that you did with a ton of really bright people, it paid quite well, and it was very low stress.
The only gotcha is you can't really transfer those skills into other jobs, and the market for computational physics is rather sparse.
Yeah, you hit the nail on the head there. the sparsity makes me nervous. Combine that with the fact that I recently changed jobs from a very low stress position where I was basically calling the technical shots for myself to one where I am micromanaged to the half day time step... (I did this to myself in order to broaden and deepen my computational resume.) I sleep a lot less this year than last.
The only gotcha is you can't really transfer those skills into other jobs, and the market for computational physics is rather sparse.