Here
https://www.immigration.govt.nz/new-...-resident-visa is the INZ factsheet about getting residence under SMC. This tab shows what you MUST be able to prove about yourself in order to apply. Under the heading
Skilled employment, it says
If invited to apply for residence, you must provide evidence of your skilled employment, including having the necessary:
work experience
qualifications
occupational registration.
And here is the INZ page about how they assess a job to see if it counts as skilled
https://www.immigration.govt.nz/new-...led-employment, which it looks as if you and your employer need to read very carefully.