Nanny baby sitter

We are looking for a native or very good English speaking student to take care of our kids once or twice per week 16h30 - 18h30. We live in the city center so no car needed. You would need to pick up the kids from their schools (they are 4 and 6 yo) and spend time with them at home until we are back. The kids are already bilngual and have notions of English.

If you have a car you could also spend with them Wednesdays afternoon by taking them for after school activities.