Hi nanak12,
welcome to the forum. Many of us had come in the same route.. Mostly Employers will recruit from overseas if the skillsets are specific/rare and they could not get anyone locally.. There are few job search websites like seek.co.nz & trademe.co.nz/jobs Search in them and how many jobs are available for your skillset. I think thats the starting place. Also, if you carefully watch for few weeks, you will find some of the jobs will be re-advertised again and again by different recruitment agencies and the employer. Most likely those skillsets are on demand
Good luck with everything