you can try, but then you'll be competing with ang mohs for the
same positions, on nearly every reputable university in north
america you'll find recruitment ads for english teaching positions
for japan, taiwan, korea, and now, china ... and it's extremely
popular .... my school even runs a two week certification course
for graduating liberal arts students ... 
I have two friends in taiwan and a friend who just headed to japan
... and honestly, who do you think the locals will trust to speak
and teach English more ? ... an ang moh or an asian ? ... 