If you read the page BendigoBoy linked to, it says, "The Early Careers stream will give Australian organisations the opportunity to participate in 12-month secondments, placements, or intra-corporate transfers of tertiary qualified UK professionals who are early in their career."
It's only for one year. I can see international companies using it for secondments or transfers of their own employees from the UK to Australia, but otherwise why would an employer jump through the hoops for this visa, for the sake of just one year? IMO there would have to be a really acute shortage of qualified employees, for them to even contemplate it.