I think you'll find it highly unlikely that you would be able able to enter airfield ops directly without having first put some airfield experience under your belt.
One option for you to try might well be to see if as part of/added onto your course it's possible to get a day-release/work experience with a nearby airfield.
As with many jobs most folks take whatever they can get to start with and then once they have a "foot in the door" and getting some aviation work experience start knocking on the doors.
It might help to know what your most local airfield actually is?