Part-time Nanny/Babysitter

Looking for a part-time nanny/babysitter for my infant daughter starting March 31st. She will be 4months old by then. I work from home and I will be nursing her as long as I am able to while working. Responsibilities will include changing diapers, bottle feeding her, burping her, feeding her solids (as she gets older), put her down for a nape, play with her or take her on a walk outside in the stroller, reading to her.. etc. We live in a 4-level house, so being able to go up the stairs easily while carrying a child is essential. Prefer a non-smoker. We do not have pets. Parking is available in front of the house.