I have to admit that I can't see Harry happy as an Auror. Too much paper wrk, for one thing. Then, would the Head of the Department really send out the Boy Who Saved Them All from Voldemort or would he keep him at a desk, fearful of what would happen to his career if Harry were injured or killed while out on a call?
I love the world of magic and surely it cannot be the safe the world over, now, can it?