Develop a project in Dynamic CRM 2011

I need an expert developer of Dynamic CRM 2011. The developer should have a very good experience in C#. He must have worked in Microsoft Dynamics CRM 2011. Please show me past sample of your work. I will make 50% milestone . After 50% work is done i will make another 50% milestone. After 100% work is done, source code is received then release will be there upon 100% work done and tested. A NDA will be signed for security of project and its credentials.