Does anyone have experience in getting a work visa in New Zealand?
Well you are not actually supposed to be looking for work when on a tourist visa, but if you were offered a job, just by chance, then there is no reason why you cant apply for a work visa Notice the emphasis on apply because the requirements for a work visa are more stringent than someone just coming as a tourist. Others have given you links to NZ Immigration so there is no need for me to repeat that.