Does my potential engineer need to do something to prove he can code?

To OP’s question, no. S24 is currently majoring Aerospace ENG in UCD. He also got accepted to other top ENG schools such as uDub, TAMU and Ohio State. He never took any AP class in science or CS (even his HS offered them). And his EC were not related to ENG, major EC was colorguard :grin: