Is it legal to go and find work in Australia considering that you were granted a multiple entry visa as tourist Australia?

It is generally not legal to work in Australia on a tourist visa. Tourist visas are typically issued for the purpose of visiting Australia for tourism or recreation, and do not allow the holder to engage in employment. Working on a tourist visa is a violation of Australia's immigration laws and can have serious consequences, including potential fines, imprisonment, and deportation.

There are some exceptions to this general rule. For example, some tourist visas may allow the holder to work for a limited period of time, provided that the work is related to the purpose of the visit and is approved by the Australian government. In these cases, the visa holder will be required to obtain a work permit or other authorization before starting work.

If you are not sure whether your tourist visa allows you to work in Australia, it is important to check with the Australian government or with an immigration lawyer. Working without the proper authorization is a serious offense that can have significant negative consequences.