How do i become a bouncer in nz?

i am 16 and would like a career as being a bouncer or some sort of security. i have been lifting weights for the past 6-7 months and i know that i couldnt be a bouncer til im atleast 18 but by that time i plan too be rather big. how do i go by this? is there any sort of training or qualifications? if anyone could answer this itd be a great help :) cheers