you would more than likely have better luck fining a job in canada or the US or anyhere else besides australia. its very difficult to get or find apprenticeships in aircraft maintenance here. with the schooling you have done you may be able to get some of it recognised but id say you would have to compete all the exams for casa again. these are run by schools such as "Aviation Australia" you can email them and find out what you would need to do if you really had your heart set on australia.