Part-time Nanny For 3 Year Old And Occasional Help With Infant

We are looking for childcare help approximately 4 hours a day, 3 days a week, starting in May. Hours/days could be flexible, picturing ideally a 9am-1pm, M/W/F setup. My husband and I have a 2. 5-year-old son and are expecting our second baby in March. I stay home right now but would like some help with the transition from one to two little ones. We have family help for the first 6 weeks or so, so would picture this position beginning sometime in May with availability for at least 3 months after, possibly longer. Mostly would like help with my older son but also assistance with the baby at times. have a very sweet dog as well. Must have references and your own transportation. We would prefer a nanny who does not smoke, who is comfortable with pets and who is CPR certified.