Part-Time Sitter Needed For Children In Devon

We are looking for before school care (7:30 to 8:30 a.m.) AND/OR after school care (3:30 to 4:30 p.m.) in our home in Devon. We need someone to assist our two children (ages 9 and 7) with breakfast and walking them to the school bus stop. We are also looking for someone in the afternoons to be home when they get off the bus, get them a snack and start homework. Our 12-year-old will be home in the afternoon. Ideally we would like at least 3 days a week, it can be more or less. If you can only be available in the morning or the afternoon we are flexible! A car would be preferred but not mandatory. We are also a 5 minute walk from a train station. Thank you!