Before School or After School Work

We are looking for a great babysitter for my son in South Austin. We need someone who can pick him up from the bus stop in the neighborhood at 3:35 school and walk / drive him home (2 streets away) and stay with him about an hour until his older brother and sister get home from school around 5 p.m. We are looking for a babysitter who has their own car, who does not smoke around him, and who is CPR certified. This will be all of October due to my work schedule. I will introduce the two of you before hand to make sure my son and you are comfortable.