Summer Nanny For 6 Year Old

I'm looking for a great babysitter for my 6-year-old son every other week this summer starting on 6/24. He is a busy guy. He loves math, Sonic, games, and drawing. We would need someone able to pick him up from camp at 12 noon and stay will him at our house until 6 p.m. He will need a snack and structured activities during the afternoon. Some light tidying up would be part of our caregiver's responsibilities. Please be comfortable with two small dogs. They would need to be let out when you arrive and once in the afternoon.