[j_baker]

Somewhat off-topic: What does the Chief Philosopher of a software company do? And how do I get that job?

[tjarratt]

If you start your own company, you can give yourself any title you like.

edit: That doesn't mean people will refer to you as such, or respect you, but that's a different issue altogether.

On topic, a Chief Philosopher probably would serve a role between product manager and evangelist.