Babysitter Needed for my Children

We are looking for someone who can be a nanny in our home 1. on Fridays for our 2-year-old girl only. She has childcare already established Mon-Thurs. 2. Sporadic days for our infant boy (usually weekly either on Mondays or Tuesdays) and potentially some blocks of times on weekends. We would prefer a caregiver who has their own car, who does not smoke, who is comfortable with pets and who is CPR certified.