No future plans to use a NoSQL db ?
What do you mean by separate JS app ? Node.JS app or ASP.NET C# app with a single page ?
You mentioned your website. Which one ? The app or the front end ?
"Highly proficient with ASP.net c# development" Are you using ASP.NET 1.1 or cutting edge ASP.NET MVC ?
Request a GitHub account on the listing or CodePlex..
"are willing to pay a competitive salary to reflect this."
You're looking for your first employee, you don't offer stock options, you don't look for a great all hands developer which you'll not pay over the "competitive" salary. I believe You are calling for B/C programmers ( where A+ won't apply )
For the employee this is a risky job, if I were looking for a job, I would't apply.
I hope my tone was positive and constructive..