Question for JWANENG POSTAL OFFICE

I am Tatenda Shawa holding a Diploma Certificate in Mineral Processing and Extractive Metallurgy. Looking for a job in a position of monitoring of valuable components present in a Metallurgical circuit, improving Key Process Indicators in the Plant, also sampling in order to get samples that accurately representing the component concentration or metal grades to produce accurate Metallurgical Accounts.

if i apply for a job Au going to employe me, since i am not a Botswana citizen????
if it is possible please help me.