Babysitter english native language in paris 17th (batignolles / monceau)

We are looking for a babysitter, with english native language, to take care of our children after school with hours on Monday (from 4.30 pm to 7 pm), Tuesday (from 3.00 pm to 7pm). subject to change with some hours on Wednesday (from 11.20 am to 1.30pm or  more) and on Friday (from 3.00pm to 7.00pm) Possibility on evenings too.

It will be to begin as soos as possible and during the whole year school (until June / july) and to help in homework, etc. my children are 7 & 9 years old.