Need Senior Engineer for developing high traffic Chat/IM engine w/ C# .net & windows services

This project is for very experienced developer with: > .net > C# > multi-threaded / multi-server - chat and messenging > cross-server caching > proxy / tcp > entity framework This project will require the developer to work on existing technology and add enhancements to improve load balancing abilities, cross-server (cloud) message processing, and overall maintenance of the engine. This project will begin with some basic tasks and can become a long term job. You will work directly with the engineer and develop solutions. The tasks include: > Improve the overall performance and scalability of the engine > Implement 2 workflow scenarios (login, pagination) > Implement load balancing solution that works across servers.