Master's in computer science vs Master's in information technology I have a BS in computer science and have been working as a developer for the last 6 months after my graduation. I am interested in pursuing a master's degree and I'm not sure which program, computer science or information technology, would open more academic and professional doors.

I will have ~3 years of relevant experience after completing any program and my job will pay for ~80% of my education. 

What program have you taken, what doors has it opened? Has it gotten you interviews, or moved you up the ladder faster?
Take a look at the courses in the two programs at your selected institution.  You will likely find that the CS master's is more theoretical and the IT master's is more applied.  

Then decide your own path.  Do you want to continue as a developer, do systems integration, or something else.  Map your proposed path to the program.