Bloomberg definitely is hiring all over the world. But if you like working around Princeton, NJ and if you got Python and Oracle skillz, there's one team that could definitely use you:
The full list:
http://careers.bloomberg.com/hire/experiencesearch.html
Filter to R&D. We are mainly hiring in NY, NJ and London.
It's a great place to work. Regardless of the problem
domain you prefer, there is something interesting to do.