

Hi Dominik, unfortunately you'll have to work from the ground up unless you have contacts here or can bring some players with you that will get your foot in the door. Most clubs will look after their own or proven commodities locally. Would have to volunteer your time and build your resume up here.
Good luck with it.

You will also have to have a recognised Australian coaching qualification (not sure what, if any, reciprocity there is with overseas qualifications) and be able to satisfy a Working With Children check

Hi There, the coaching roles for junior clubs in most areas of australia will have been filled as the upcoming season approaches in 5 - 6 weeks.
You could get in touch with local basketball associations BasketballSA Basketball Victoria etc (dependent on where you are living) and if your coaching credibility is very high, approach NBL clubs to see if you can assist the development players in some way?
getting a foot in the door is the first step and usually requires it to be on a volunteer basis at first.

Others will know more about this, but I wouldn't presume to get paid for this role, especially coming in cold without contacts.
It might be the leagues to look at are SEABL, Big V, QBL, SA Premier League, etc but I don't know that assistant coaches at those levels get paid all that much. You would need to be an exemplary talent or you'd be coaching a bit beside a day job.
Generally the head coach will be leaning on a club up-and-comer or rope in a friend to help them.
If you literally mean "the" Australian youth teams, then I can't see how that would be any chance - there are a lot of strong junior coaches taking those spots already.
Are there still youth leagues under the ABL level? Seemed to happen for a while in SA and then went quiet?
