Australian here, but I've worked for NZ companies before.
Especially down in our corner of the world, it's all about who you know. If you've got a few people you've worked with where you can go "hey I'm looking for a new job soon, heard of any openings?", that'll get you wayyyyy better jobs on average than what ends up hitting the public job advertisements.
Speaking from experience, advertising a job publicly is what you do after you've asked everyone you know if they know anyone personally who would work well.
Especially down in our corner of the world, it's all about who you know. If you've got a few people you've worked with where you can go "hey I'm looking for a new job soon, heard of any openings?", that'll get you wayyyyy better jobs on average than what ends up hitting the public job advertisements.
Speaking from experience, advertising a job publicly is what you do after you've asked everyone you know if they know anyone personally who would work well.