EMT Nanny - Paris 7th as of September

Hello!
We're a friendly family with 3 lovely kids : a 8 year-old son and 2 daughters who are 6 and 3,5 year-old.
We're looking for a cheerful, authoritative, responsible English native speaker nanny to take care of them from 16:20 till 19:30 on Mo,Th, Fr, from 11:30 till 19:30 on Tue&We; Fr and from 11:30 till 13:30 on Th beginning September 1st.
You'll get them at school and take care of them until we come back: speaking, reading, drawing, playing, singing, going to exhibitions and having fun. You'll be assisted by a housekeeper who's in charge of cleaning, grocery shopping and cooking, so you will just have to give them their bath and serve them a light meal already prepared.
We live close to the metro Ecole Militaire in the 7th arrondissement, close to the Invalides and the Eiffel Tower.
If you're interested, please do not hesitate to contact us!