C# application with SQL Server Database

I need a seasoned C#. NET programmer minimum 3 years of programming experience, with at least 200,000 line of code to build a fast and stable application that can handle a) Real time data, b) Write to database c) Run fast calculations The application will be a robust stand alone platform that is expandable to do further. The right candidate will be an expert at SQL Server 2008. C++, C# and VB all within the DOT NET framework. Must know Multi threading. I need a good communicator with strong communication skills in English. This is not a very big project but sophisticated one.