I am aware that most game companies are interested in employing people with a strong game-related portfolios. But I was wondering whether you come across positions advertised for academics, or people with a strong academic background? I figure that perhaps very large companies relating to high end graphics like Nvidia may have a need for people with a PhD in some area of applied maths. Perhaps the same applies for developers of 3D tools like Autodesk. And perhaps there are other aspects of the game industry where mathematicians fit in.
The reason why I am asking is that I am interested in perhaps entering the game industry. I am making games on my own time but primarily I am doing a PhD in applied maths, so I was wondering how I fit in the game industry, if there is a fit.