Many of my students work full-time jobs and are GREAT employees. Their boss allows them to work part-time (or even take off a couple weeks altogether) during mid-terms and final exams. Their employer would rather give some time off than completely loose a great employee (because great burger flippers truly are hard to find).

Manage your time, stick to a study plan, let your professors know that you have a full-time job, and let your boss know that you are taking college classes.

Best wishes!

Otherwise, if you want to change jobs after college:

Unless you have loads of money or if you have sponsors, I suggest being a part-time student. If you do have loads of money or have sponsors, being a full-time student is best. It saves you time graduating and getting a better job.