how do I find an employer?!

Hi! I'm living in toronto area and I wanna go work in western australia and I checked out couple sites for immigration in australia and I found out about temporary business(long stay) subclass 457-seems to be a faster way to get into australia than applying for PR card! If I find an employer willing to hire me and ssponsor me ! being in canada I guess is hard to find an employer from australia ! that `s why I don`t know how to get in touch with employers from mining industry !