Write some Software

I need a Mac Application to be used in a school / corporate environment. I would like a piece of client software that is always open and starts at the startup of the machine. The software would allow a server or CRM to remotely send and install applications and packages to the Mac. We would need a client and server /CRM side software written. It can be evolved overtime but it would use the existing Mac protocols such as Remote Management, VNC and SSH.