I would like to have the foundation of a web site built using ASP.Net Web API 2 on the server with a Durandal SPA client. You can use .Net 4.5 or later. The Web API should use the async model for scalability. Please include forms and OpenAuth authentication with a registration page. Your design should incorporate IoC, using a framework such as Simple Inject. People who register for on site should get a confirmation email. Be sure to include CSRF protection. The database will be hosted on SQL Server. Client styling should be based on Bootstrap and Font Awesome. The project can be done in phases - OpenAuth functionality can be added after the basic site using forms authentication is completed. It would be good if the developer is following Aurelia development.