New Zealand gives opportunity for foreigns to work, unlike many other countries. If you are a skilled migrant, even better. The country needs certain professionals to work in areas with lack of specialized natives. However, it is necessary to have a visa for this. It is not allowed to work in New Zealand holding a tourist visa.
Find below basic information on visa types that can be requested. NZEGA is not a job agency, however may help you with advices about immigration and how to identify opportunities for work.