Urgent au pair in Las Rozas Madrid

We are looking for a an English student who might be interested in a part-time job helping out with our two wonderful girls (we are, of course, objective), aged 1 and 4. The job would involve helping out on a daily basis with my wife at our home. The times would be 16.15 to 20.15, Monday to Friday, in Las Rozas. Any previous experience working with children would be a great plus. We pay 350€ per month