There are a lot of kohana php developers out there, but how many of them understand UI/UX enough to not need another resource to clean up after them? On the other hand, how many web designers, let alone UI/UX experts, do you know who also understand PHP, Kohana Framework, OOP, MVC and can code with cloud computing in mind (You know.. ELBs, RDS, AutoScaling, OpsWorks, and all that good stuff)?