Why don’t you consider a job with the FBI in Cyber security?
the biggest hacked system with the largest impact on our country is the voting system. we can fix that and i want to push that forward.
Voting systems standards would have to be created at the federal level so the states can come into line and submit their votes appropriately.
similarly, the wall will need a large scale system for communications, monitoring, wall infrastructure, and drone support. that's another system whose completion would greatly impact our country.
as far as i know, neither of these systems would fall under the FBI. DHS may manage the wall, but the software systems would, and should, come from another department. Possibly the same department as the voting software and standards... i'm just unsure which department that would be.
either way, there should be someone attached to the administration that can oversee the progress and give regular reports as needed to POTUS.