Yes, you can. If 12 months is not enough for you, you can extend for a 2nd year once you meet the requirement of working in Australia in remote locations in Australia (those which are less developed and need your help) and in a particular industry for 88 days during your 1st year of that visa. You can check here the full list of postcodes and positions available. You can also stay for your 3rd year of the Working Holiday (subclass 417), but then you need to do exactly the same thing as above but for almost 6 months.