German speaking nanny in Stockholm

We are  looking for a German speaking nanny who can help 2 days per week with picking up our three children from pre-school and school. Children are 8,7 and 4 years old. Pick-up time would be 15:30/ 16:00 and you would play with the kids around 2,5 - 3 hours. Everything is in waking distance from the train station Djursholm Ösby, two stations from the university.