Childcare Needed - Full-time / Part-time

We are looking for a great babysitter for 2 children in Braintree. My 6-year-old would I would need to get on the bus in the am and the 1-year-old you would care for all day. We would prefer a babysitter who has their own car, who does not smoke, who is comfortable with pets, who is CPR certified and who has college degree.