As you can see from the program website, we offer an MA program in a range of fields. A large number of our students do work at the same time as pursuing their studies. While it is impossible to say precisely how the schedule might work, depending on course offerings from semester to semester, we do offer most of the graduate-level classes in the late afternoon and evening. Exactly how long it would take you to complete the 27 credit hours required for an MA would depend on how many of those classes you could fit in. Full time, normal time to degree is two years. But part time, more gradual fulfillment of the class requirements is feasible.
I urge you to explore the program for information about the specific requirements, our faculty, and the areas and courses offered. If they fit your interests, it should be possible to complete a degree while continuing to work.