Kitsune is a full stack framework for business websites. For UI/UX developers all they need to do is to take care of Front end and backend will take care of itself. 

I have worked on language definition of Kitsune, its compiler and the backend layer of Kitsune, pretty much entire stack of Kitsune. Kitsune was being developed by a team from NowFloats, where I work as Software Engineer.

For further infomation on this project, please refer to http:getkitsune.com