Software developers wanting to work in the US usually need to get a H-1B visa. However, the US Citizenship and Immigration Services (USCIS) has announced it would make a more targeted effort to combat "fraud and abuse" of the system. With the Trump administration wanting to protect American jobs, they are adding some hurdles for software developers.
The news release from USCIS says that while there may be a shortage of skilled workers, US workers may be sidelined as foreign workers could be lower paid.
While programmers aren't specifically targeted in the statement, some further reporting by Bloomberg says outsourcing firms providing software engineers are one of the target groups.
While this might not have much impact on Aussies wanting to spend some time boosting their experience with some time in the US, it would be a good idea to ensure your have some pertinent experience highlighting the specialised nature of your work on your resume and some notes on why you should get a job in the US rather than a citizen.