Anyone got advice on software internships in defense?

Going into my junior year at college and doing an internship this summer working with machine learning and using massive dataflow’s with helping to clean up large concentrations of PFOS and PFAS forever chemicals. I’ve taken a real fondness to low level systems architecture (C/++, and even assembly considering it’s very tedious) and would really like to stick around the military environment, preferably in San Diego but it’s not a requirement. That said I’m working on getting the security + cert and have prior secret clearance. Have maintained 4.0 gpa since I returned to school last year. Have experience with 3d printing and my university even has a large club for it that I’m a part of too. I’m working on getting into building drones with the printers too and while I haven’t done so yet my goal is to develop my own software for them here this year. I haven’t used Matlab in a few years but I’ve got back into it recently for the same reason and I know that’s a common language used in the defense space.

If anyone has advice on what will help me stand out for interviews or even getting them, I’d really appreciate it.