Seeking a reliable sitter for 3 children during school year

We need a regular sitter for our three children, who are in 6th, 5th and 2nd grades. We'll occasionally need before school care for 2 hours, and after school care for 3-5 hours. This involves getting the kids on and off the bus, as well as helping them with their morning and afternoon/evening routines. We'd prefer someone who has their own transportation, as there is occasional driving to/from a school event. You should be comfortable around our large dog, Bodie, who is a very friendly dog. Your role includes helping with homework, meals, occasional light housework and engaging in activities. We are a household with many moving parts and look forward to finding someone who fits our family!