Pin head, you'd be in with a good shot at the Qantaslink Dash 8's for sure. You'd have to get the immigration thing and lic conversion sorted out though.
Just a thought, do you have +500 hours of LHS time in your log book? (Reason why I ask is that Australia will not recognise P1 U/S time.)
Note, don't view a job with Qantaslink as a means of getting into Qantas mainline. It won't happen in 99.9% of the time.