Aupair / Nanny needed to mind 3 children

We are looking for a reliable person to support our childcare needs. We have 3 children, Isabel 8, Charlie 5 and Sadie 2.5. We need someone for 8 - 9:15am and 12noon - 5:30 pm Monday - Friday. This would involve dropping and collecting children from school and looking after them until we come home from work. We require someone to help with the children's needs, play games, prepare snacks/lunches, keep the children's belongings tidy when they finish play time. We will provide a car for our minder. If the children have after school activities want our minder to drop and collect the kids to these activities.