You are eligible for a Post Study Work Visa if:

• you studied a degree level 7 or above qualification, or
• you studied a non-degree level 7 or below qualification, and your qualification is on the Qualifications Eligible for a Post Study Work Visa list.

You must also take a job that is related to what you studied, if you studied a non-degree level 7 or below qualification.

If you applied for your Student Visa on or before 11 May 2022 you may be eligible for a Post Study Work Visa, even if your qualification is not on the Qualifications Eligible for a Post Study Work Visa list. However, you must have an acceptable qualification.

https://www.immigration.govt.nz/new-zealand-visas/preparing-a-visa-application/working-in-nz/qualifications-eligible-for-a-post-study-work-visa