Nanny Job in Toronto, Ontario

I am looking for a long-term, part-time helper to do school or bus-stop (nearby) pick up, simple meal preparation and some home-work supervision. The hours are likely 3:30 or 4pm to 7pm (could be negotiated) daily on week-days. We are on subway line, convenient transportation. Two kids are age 10 and 7. There could be driving to school (in Mississauga) required on days of after-school programs/clubs when busing is not available. Therefore driving license is a must (with good driving history), but vehicle ownership optional. Some meal preparation, occasional laundry, homework supervision or just simply keeping them on a good schedule. Pay is negotiable.