Please suggest

I have a team of 20 people working on different software platforms as vb, java, dot net etc.
I need to have a single server to configure software for all the various platforms and person working on them can be access the server using authenticated login and password using MSTSC to access these software and develop code directly. Basically there will be systems working as Thin clints connected to centralized server which will work as repository.

Please suggest us the methods and desered server configuration details required to support this ideology.

Thanks a ton in advance.