Reoccurring Weekly Nanny For 1 Year Old Boy

We are looking for a nanny for our 1-year-old son. As of now we would need someone who is available 9:30 a.m. to 1 p.m. Monday-Friday with flexibility each day. For example, some days may be 10 a.m. to 12 p.m. and some days 11 a.m. to 1 p.m. but I will provide you with the times I will need you the week before. I estimate that it will be about 10-12 hours a week. We would also be looking for someone who can care for our son until he goes to daycare which will hopefully be around May-July. We would prefer a nanny who does not smoke, who is comfortable with pets and who is CPR certified. Must be reliable and punctual.