I (Australian Citizen) want to move to Australia and take my girlfriend (Austrian) with me.

Details:

I am an Australian Citizen (27 y.o.) , but i have lived in Europe since I am born. She is an Austrian Citizen (25 y.o.). We want to move to Australia.

She has an undegraduate degree in Business & Economics and is currently working in a good position in Germany. How could she get permission to work in Australia?

What kind of Visas could she get? How would things Change if we get married?