Native speaker live out aupair in Madrid

Hello! We're a family with two kids aged 5 and 9 years old, and we're looking for a native speaker aupair to help our kids with their English, at least two days a week, 3-4 hours every day in the afternoon (help them with their homework, pick them up from the school - 2min walk from home -, play with them, read books, etc, all in English). We live in the south of Madrid, close to different means of transportation (subway, bus and train) and we are flexible with the salary. So if you like children, are a responsible an enthusiastic person and also want to improve your spanish, please send us an email for more details.