Sitter Job in San Francisco, California

I'm looking for a Japanese speaking babysitter to take care of and teach Japanese to our two girls, on a weekly basis. We're flexible about times and could change according to your schedule each week. I just would like our children to have more regular exposure to the language. I am half Japanese and half French Canadian, grew up in Japan and speak basic Japanese. I may join to help care for the kids as well, and learn to speak better myself!