P/T Summer Babysitting position

We are looking for someone to help care for our 18 month old for 3-4 afternoons a week (days flexible) this summer starting mid-June to late August. Exact hours are flexible roughly 1:30-5:30, 1-5 p.m.. We will be living in Escondido Village. We am hoping to find someone with recent and meaningful experience interacting with toddlers, who is patient, nurturing, engaging, genuinely enjoys doing all the things that toddlers do from reading, playing, singing and is comfortable preparing snacks, milk, changing diapers, putting down for a nap and is a good communicator with parents. CPR training and other relevant training/experience a plus. We'd also love to find someone who can comfortably interact with our preschool age son in the late afternoons as well.