English external aupair Chamberi neighborhood

I am looking for an English speaking external Au-pair to help look after my two little girls, aged 4 and 6. The work hours would be: - Mondays and Wednesdays from 16h to 18:30h -Tuesdays from 17h until 19h From now until the end of the school year. The job would consist in picking them up at school and playing with them, taking them to the park or to their extracurricular activities, etc. We are looking for someone who is responsible, great with kids, and is able to commit to the whole school . They already both understand some English. Three is no housework involved. We live in central Madrid, near Bilbao metro station (Chamberi neighborhood) Salary: Eur 200 per month.