Employers can bring workers into New Zealand via 2 border categories.
'Critical Health Worker' is an exemption category for those employed in the health sector in specific roles
'Other Critical Worker' is an exemption category for bringing employees over in any industry, government approved projects and scientific programmes. Employers do not need to be accredited to bring workers under this category. High paid workers can apply for one-off Residence Visa before 31 July!
Due to the regularly changing requirements at the border, Immigration New Zealand website is the best source of information.
You might also be interested in…
NZ Border Update - Critical Health Workers and Approved Classes of Workers
‘Other Critical Workers’ and their Residence Pathway