Babysitter Needed for my Children

This would be a nanny/mother's helper role that would be one or two days per week on the same agreed upon day/days of the week (days are flexible). We would need help with the children while mom is home and while mom runs errands and has appointments outside of the house. We would prefer a nanny who has their own car, who does not smoke, who is comfortable with a dog, who is CPR certified, who has their flu shot (very young baby), and who has a college degree or is working on one. Plus, previous experience working with babies and toddlers.