The role of NP in Australia is different and restricted to that in countries like USA. Which is a shame, considering the massive need for NPs and the evidence that shows quality outcomes when NPs are involved.
To become an NP in Australia is confusing and difficult at times. You will need: a bachelors in nursing. 5+ years of nursing experience in the area you wish to practice; including 2 years in an advanced practice role before you can study your masters degree.
Then AHPRA needs to endorse you as an NP before you can practice. Even if you meet all the education and experience requirements, they can still refuse to endorse you.
Hopefully Australia improves policy and legislation so that the NP role can expand in coming years.
Majority of NPs that I have heard work in specialties such as Emergency (short stay and fast track), palliative care, rural, chronic diseases and mental health. But all specialties are possible.