Looking for part time nanny/aupair

I am looking for an aupair/nanny/mothershelp for a lovely family in Nice. After over 3 years of work with them I got to leave to London for my studies. They have two wonderful children boy 5,5 and girl 4 years old. They need a help just part time. Which inludes 2 mornings drop to school, two afternoons pick up from school, one half day (Wednesday), one or two babysitting a week. The best candidat would be native english speaker with knowladge of french and be able to drive the kids to and from school which is about 20 min away from home. Someone who has an experience with working with kids previously. There is a possibility of an aupair position which would include free separated accomodation in their house, but they would need more time to got to get to know that person better. If any question, I'd be happy to answer. Start as soon as possible for a period of about 1 year.  Best regards