I just browsed their site and the first 16 weeks is likely to be the toughest part of trying to blend FT work into it. Their program is M-F from something like 0800 - 1700 for 16 weeks straight. Once you're done you then progress to doing hospital clinicals for 6 weeks and then on to a 10-12 week field internship. Sounds easy enough, right? If everything works out exactly right, you can be done in about 8 months. If there are any delays in placement at your internship sites or if your schedule is lengthened due to preceptor availability or whatever else, that will extend your completion time beyond 8 months. Academy style programs are not easy to do if you must work and attend the program. If you absolutely must work, try to schedule that stuff during your weekends "off" from school and the majority of your funds that you save now will likely be used for that first 16 weeks because it's just not going to be very easy.
I attended a similar program, but ours went 4 days instead of 5 for didactic, and toward the end of that, we dropped a day or two of didactic time and we'd do a day or two of clinical internship time. We were all 100% ready for our field internships at the 6 month mark. The tough part for many of us was there weren't a lot of preceptors to take all of us at once so some of us had to wait for a while. The last of us completed the program 13 months after starting it. I worked basically FT during that time but thankfully that was "only" a 24 hour shift or two... and/or a 12 hour.
Now then skip ahead a few years (quite a few, actually) and I had left EMS for security work (needed and got awesome bennies) and then went back to school for nursing. That was not easy either. That was 4 days/week for 2 years (Summers off), and that was considered full-time. I also worked full time as well. Security work was what allowed me to do it... I could study while at work and my work hours conveniently were after my school hours... but it occasionally made for some very long days (14-16+ hours) even with studying at work. I also had a family...
Time management, actually being or becoming good at it was necessary, and it'll be necessary for anyone that wants to, or has to, work while going to Paramedic school, Nursing school, or any other "school" where you have lots of inflexibility at school and lots of time/work to be devoted to learning. There are people that manage to work for a time while going to PA school, Med school... and much more... but they have to really get good at time management and they have to know/learn how to be able to afford to do it because with those programs, there comes a time when you can't work because the demands are just too great (and inflexible).