Nanny Needed For My Children - Now Hiring

We are looking for a warm, nurturing, confident, and capable nanny primarily for our 4-month-old baby and a few hours for our 4-year-old (after school) on the upper west side. We would appreciate someone who could help out with housekeeping but not essential. Cooking would be appreciated. We need someone that has experience with both babies and toddlers and who really interacts and takes pleasure in both kids. Someone who has a background in child development/psychology is appreciated. We would prefer a nanny who does not smoke, who is comfortable with pets, who is CPR certified and who has college degree. Different days require different hours Monday-Friday. We can discuss:)