Hi Welcome to JustAnswer. My first response will follow shortly. Please feel free to follow up if anything is not clear

The requirements are for residency for the last 5 years. I assume you want this accelerated

It is possible to do so but not at all easy.

To be eligible for a grant of New Zealand citizenship you must have New Zealand residence.

Residence means that Immigration New Zealand has allowed you to live in New Zealand indefinitely. You are required to have:

1. Been present in New Zealand;
   • for at least 1,350 days with New Zealand residence during the 5 years immediately before you make your application; and
   • for at least 240 days with New Zealand residence in each of those 5 years; and

I assume you are aware of this

Internal Affairs say on their site

In fairness to other applicants the Citizenship Office is reluctant to process applications out of the order in which they are received. The Citizenship Office does not have an official urgent service. However, the Citizenship Office does urgently process applications on humanitarian grounds or in cases where citizenship urgency is required in order to represent New Zealand (e.g. serving in the armed forces, sports representative etc.). Applicants in these situations must provide evidence to support the need for urgency and additionally New Zealand citizenship must be the only option available in their situation.

The Citizenship Office does not generally consider that the need for a New Zealand passport to travel a sufficient reason for an application to be processed urgently and we suggest that you make arrangements to travel on your current passport.

If you would like to explore this matter further please put your request in writing, along with original evidence, to the Citizenship General Manager, PO Box 10680, Wellington 6143.

What are your grounds for urgency?

Normally residence in New Zealand gives you reciprocal rights for Australia. Why do you need citizenship for this?

This would not fit into the criteria for accelerated citizenship unless you can show some substantial benefit to New Zealand

If you have residency here then you get residency in Australia which would entitle you to work there. But this would not get you citizenship, especially if you are planning to go to Australia anyway because you must demonstrate a commitment to New Zealand. But if this contract would create jobs for a lot of New Zealanders here in New Zealand that is the sort of thing which would help.

If you have residency here then as I understand it, you can ask the High Commission in Wellington and you can apply there -but you may need to ask an Australian lawyer.