Can i get a job in Auckland and apply for a visa ? if they will provide me all needed documents,how possible it is?

I'm a 18 year experienced marketeer who have outstanding experience in all sectors. My sister owns her own business (bakery + restaurant ) with PR and wanted me to join there business in NZ,If i can go on a visit can i get the job offer from them and apply for a visa ? if they will provide me all needed documents,how possible it is?(i work in UAE for a multinational Company and recently did IELTS and got 5.5 band ) im really interested and looking for a opportunity.
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