As I am sure is the same everywhere, wages in Australia will vary quite a lot.
Depends on your ratings held and what trade you are (avionics often get a higher wage as we hold three categories).
The lower end of the market would start at about $95k and lose about $30k of that to the tax man.
In my experience the average would be around $110k-120K in a Jet airline envronment (again this will vary between operators).
hope this helps