How about simply visiting Australia without your corporate laptop? Or take the laptop but without the means to connect to the corporate network/accounts?
Visit Australia, get the notice, go back to wherever you live and work, and either implement the backdoor or get kicked whenever you return to Australia one more time.
People tend to be deeply attached to seeing their family and friends, so the mere hint that the reality of such laws could be purposely weaponizing those emotions is nothing shy of vicious. As a Dane who lives in Brazil I’d be devastated if I had to choose between the ability to see my family once a year or my ideals. It would tear me apart. To not be 100% sure I could go to my parents should one of them fall gravely ill e.g. would be heartbreaking.
I mean I love you people and I believe you are entitled to freedom, privacy and security but that is not a choice I’d make lightly. I do not envy Australian developers right now, not only is their marketability severely reduced, the emotional cost of taking a stand can be downright crushing to the spirit.
This is just.. evil. There is no other word for it.
Aren't you then trapped, as implementing a backdoor in foreign software on foreign soil on command of a different state might lead to charges of espionage in the country you are residing in?