Sometimes the best way for landing a job is to find an agency that is specialized in IT Jobs. In most of those companies you will find the recruiters on Linkedin Profile of IT recruiters.
- Absolute IT - https://www.absoluteit.co.nz/
- Alpha Recruitment - https://www.alphajobs.co.nz
- Candle - http://www.candle.co.nz/
- CareerJet - http://www.careerjet.co.nz/
- Comspek - http://comspek.co.nz/candidate-services/
- Crescent Consulting - http://www.crescent.co.nz/
- Greenligh Recruitment - https://www.greenlightrecruitment.co.nz/
- Hays - http://www.hays.net.nz/index.htm
- Hyre - https://www.hyre.nz/
- Hudson - http://nz.hudson.com/
- OCG - http://www.ocg.co.nz/technology
- Place Recruitment - http://www.placerecruitment.co.nz/
- Potentia - http://www.potentia.co.nz/
- Presto Resourcing - http://prestoresourcing.co.nz/
- Recruit IT - http://www.recruitit.co.nz/
- RWA - https://www.rwa.co.nz/
- Seek - http://jobs.seek.co.nz/
- SunStone - https://sunstonetalent.com/#journey
- The Talent Hive - http://thetalenthive.co.nz/
- Trademe - http://www.trademe.co.nz/
- Workhere - http://www.workhere.co.nz/
- Working in New Zealand - https://www.workingin-newzealand.com/jobs/
PS: You can find more agencies on those 2 Govt sites.