There's no secret strategy to get an employer willing to sponsor anyone offshore. All you have to do is the typical application which is apply online, submit resume/cv. What you need to do is to be the best candidate. Best CV, cover letter, credentials, and experience. Remember the competition is tough and right now many PRs and Australians are also looking for jobs.
You will need to work hard for it, most people who have success send CVs and cover letters to hundreds of employers just to get one interested. That's the first step.