[Ichirin]

I think if you completely control both english and japanese, and all involving aspects of the languages, you'll get a job in japan in no-time. English teachers are highly wanted there, and only foreigners can complete master the english language (since the "r" isen't used and most people think all l's are r's). Therefor,even if a school that already has an english teacher with even more experience in teaching, chanses are pretty high they will invite you to come work with them. But i guess, he's right for all other jobs that offer job-security (not musicians and other artists).