If you can get a get a job here and work towards citizenship, that is great. It is an amazing place to live and work. The major airlines can't hire you without citizenship though, like Canada.
You don't need Australian citizenship to be recruited by an airline in Australia but most, if not all, will require 'permanent resident' status which can be achieved if you qualify for the relevant visa.
That said I doubt the OP would qualify for a
PR visa with the qualifications and experience he has outlined here.