Yes, it is mandatory to advertise the position. They have to appear in 3 national reaches on a prominent or professional recruitment website with national reach that publishes advertisements for positions throughout Australia. Typical websites are Seek, Indeed, Career-One and Jora. It is mandatory to advertise on Job-Active, as one of the 3 sites. A job advert on your own business website won’t count. The ad has to have compliant wording. Only if the nominee is from certain countries will you be exempt from advertising. These include countries with which Australia has a trade agreement with such is a citizen/national of China, Japan, Mexico, Thailand or Vietnam, or is a citizen/national/permanent resident of Canada, Chile, South Korea, New Zealand or Singapore.