Looking for work in Botswana

I am a zambian citizen who is interested in working in Botswana as either a customer care assistant in  Telecommunications industry or teacher of Mathematics or computers .
Iam a man aged 30, a holder of a Diploma in Telecommunication Technology from The Copperbelt University, another Diploma in teaching methodology from Salesian Education Centre, and a certificate in International Computer Driving Licence (ICDL) from Don Bosco Technical College. Of late I have been lecturing at Don Bosco Technical College  for almost five years.