https://careercenter.georgetown.edu/page/1242706952324.html
This may help. The career center has a list of jobs that are common for each major. STIA is still pretty focused on politics, but a lot of people do pursue cyber security. I don’t know about working for a tech firm–it’d depend on what you want to do and whether or not your desired position requires a masters.
You can also look at the major classes for STIA and see if it’s what you’re looking for: https://sfs.georgetown.edu/stia/