Are you seeking a trainee position of "Security Technician" job in a company, then you will be searching the advertisements (ads) for a "Security Technician Trainee" job.

   http://www.jobsearch.com.au/view-job/security-trainee/54a39203140f682b.html
"Security Trainee jobs in Sydney NSW."

  After your traineeship is completed, you now will be a Security Technician, wich job description can be found, for instance, here:
  http://www.allstarjobs.ca/index.php?post_id=88149&action=search&offset=2160

    So, you will have a Security Technician job, not a "Security Technician Trainee" job (position) any longer.  You are a full Technician now, congratulations!