Not sure, but you can try that
Jobs in Japan: Jobs - Japan Jobs - Japan News - Japan Info - Japan Apartments - Japan Classifieds - Japan Forums site. I'd take a look at a few of the other topics around here too. I'm sure you can get really good information.
Seems, though, that the easiest, or rather, most accessible job, to obtain or try for in Japan is one of an English-language teacher or either an Assistant Language Teacher (for English). They're always in need of those jobs.