Hi and welcome to the forum.
You say that you're Australian. You therefore need to provide highly specialized skills no EU or Schengen state citizen has in order to apply for a job. You have to proof such skills with recognized diplomas, you can't simply pretend to have those skills. Additionally, fluency in at least German, French or Italian are required unless you applied for high ranking/managment positions in the banking, insurance, IT or pharmaceutical field.
Once you have convinced a future employer to hire you, it would be his job to apply for a work and residence permit, you can't do this yourself. He even has to proof that he published the job in newspapers and that he wasn't able to find an EU or Schengen state citizen.
With other words: Chances for you to live and work in Switzerland are almost down to nil. This is not to turn you down but to confront you with the harsh reality. Consider that the worldwide downturn had an important influence onto the Swiss labour market, too, jobs are even scarce for locals.
There is always the possibility to come to this country and travel around in order to see if you really liked it here. If coming as a tourist, you don't need a visa if you stayed up to three months (90 days) only. Consider that after this period of time, you would have to leave the whole of the Schengen zone for another 90 days before you could come back.