Trinidad at your service.
I've been a professional developer for more than a decade, and in this time I've worked with different technologies and acquired skills in many areas, including graphics programming for both enterprise software and also games. On top of that I have professional experience with C#, programming with sockets, and I incidentally have also worked in a personal hobby project involving the SFML library. So my experience fits well with your needs, and I think having your project done will not be of much problem.
Could you elaborate on the kind of game you want? What kind of gameplay, etc.
Can you please provide me the brief about the network side of things?
Thanks for your time