In Search Of A Short-term, Part Time Nanny/mother's Helper

Our family is looking to hire a short-term, part time nanny/mother's helper for our two girls. Our older one is almost 3 years old and our younger one is a 2-week-old newborn. I'm a SAHM so I'll be around, but we're looking for an extra set of hands. Your responsibility will mostly be with the 3-year-old. We are not looking for passive babysitting. We are looking for someone to come and actively engage with her, play with her, keep her stimulated. We have plenty of toys, books, activities, but would love if you can also come with some ideas/activities. Some other responsibilities include: 1) Accompanying mom + children to weekly toddler classes; mom will attend with 3yo, but need you to watch the newborn while class is happening 2) watch newborn while mom is preparing and feeding lunch to toddler each day at 1130am