Fairly hefty process to employ anyone to work in state government, even a temp.
Firstly, it is not always guaranteed that when someone leaves a position, that the position will be continued or re-filled.
The normal process, once approval is gained to refil, depending on whether it is ongoing or a time-based position (eg to cover someone going on long service leave/maternity etc), the position is then 'called'.
The initial call can be made internally at first which means only other state government employees can apply. If a successful applicant is not gained, the position is then called externally (often these days the external call is made in parallel with the internal). These jobs appear on
www.vacancies.sa.gov.au and are open for a fortnight normally. The site is updated once a week.
Most jobs these days are also advertised in local press for the area and often in the Career One supplement of the Advertiser.
This is where it can really get confusing with the requirements of an application which can range from just a CV to all manner of other things such as written responses to the main criteria of the job. There is a fine art to a job application for the state government!!!!
Once all of this is done, including panel interviews etc, only then (in theory) if a suitable person is not identified, then an agency can be approached to supply someone on an hourly rate......
Although the system is aimed at being impartial and gaining the most appropriate person for a job, there is plenty of room for manouvre, if you know what I mean!!!