Hello,
I am a software engineer and developer expert mainly in Microsoft technologies (C#, WPF/Silverlight/XAML, WinFrorms, WCF, MVVM, Linq, EF, MSSQL, ...), communication protocols, and client/server systems.
I would like to discuss about the chat client you want to develop. After our meeting I will provide a detailed proposal regarding the solution and implementation also my estimation regarding the time of delivery and price.
Kind Regards,
Patrik