No worries, the way to find jobs in WA is to go to the WA government website and select medical officer roles:
www.jobs.wa.gov.au http://www.health.qld.gov.au/workforus/ http://www7.health.nsw.gov.au/healthjobs/ http://www.health.vic.gov.au/jobs/
Most of the resident posts in WA have now closed for applications but try anyway as we did and they were v relaxed about late applications. They try and favour Aussies for the jobs but I was quietly told that they never fill them all and then they consider overseas applicants.
QLD jobs have also officially closed for next year but try!
NSW jobs are open for application until the end of August and there are some good ones.
Google anywhere I haven't listed. In the middle of job applications so have all the info today!
Good luck x