Full Time Nanny Needed For 5month Old

We are looking for a nanny with young infant experience to help look after our 5-month-old son. We are hoping to find someone to help between 30-40 hours per week during the work days. Ideally something like 9-4 but this could be flexible. Our son is very active and loves looking at books, going for walks outside, and trying to crawl. He will also be starting solids soon so infant CPR certification would be required (we can cover the cost of the certification if needed).