[stingyscoundreljapan]

You will probably do much better in japan than most people with your engineering background. I suggest starting with english and then looking at other options. The great thing about teaching is that you have very little responsibility. Its such an easy job. Working in a coporate environment will require you to have a much more formal attitude at work.

Consider bar work also. I did that when I first went to japan. I always got free drinks, met many people and had a chance to learn japanese for free.