Babysitter

I have a 4-year-old son that I am currently looking for a sitter 3 days a week, after school. I work an odd schedule, so one week I would need someone 2 twice a week and the opposite week I need some three times a week. The hours are 3:30-8:30 p.m. Days would be Mon & Tuesday and Friday , the one week. Than the other week is Wednesday-Thursday. Once child is off the bus, would like someone to walk him to the house. His dinner will be already prepped, may need to just be heated up. Dinner is between 5:30 p.m. and 6 p.m. 7 p.m. sharp bedtime.