Nanny Needed For My Children - Full-time / Part-time

We are looking for a part time (up to 20 hrs/ week) nanny for our 6-month-old baby starting September. August we would like to try baby sits. We would prefer someone who could help out with light housekeeping related to baby only. We would prefer a nanny who has their own car, who does not smoke, who is comfortable with pets ( 1 dog) and who knows baby CPR. My husband works remotely and I am a full time student going back to school in Sept. Someone will be home during the hours needed most of the time.