Visa questions come up quite often in this forum... Just a few days ago I began reading the official guidelines for Visa requirements, just to get a better understanding of them. From what I've been reading, if you
do not have a bachelor's degree, you need a minimum of 10 years experience in a particular field to qualify for a working visa. An exception to this is the so-called "entertainer" visa, which isn't an option for most people.
You can find the entire guidelines here ->
MOFA: Visa