Hello Sir,
i think I the best suitable for this project, since I just finished the same project where we have implemented the online instant chatting using SignalR. My application is live, I can demonstrate how it works if you like to take a look. It tooks me a year to build this system but now I got everything that we need to know to implement this. So I am very much confident that I can do it easily.
I understand your requirement very well and can do it as per your expectations. I am based in USA so we can discuss anytime you want and I can start working on this immediately.
I have 11+ years of experience in software development, please have look at the projects/certifications/ratings and most important the completion rate of projects that I have completed here which proves that I am a genuine developer.
Following are proposed technical implementation details:
Application Type: Web Application
Server Side Technologies: C#, SignalR
Client Side Technologies: SignalR, Jquery
Database: MS SQL Server
I am expert in ASP.Net, C#, VB.Net, MVC REST/Web API, AngularJS, javascript/jquery, css, html, SQL Server, php so not to worry about anything.
Let me know if you are interested so that we can discuss in more detail.
Thanks,
Ninad