Babysitter needed for two children, 7 AM to 5 PM (dependent on week)

We're looking for a babysitter for two children, a toddler and a preschooler. The schedule is flexible, starting on mid march. We would need someone who could work weekdays from 7:00 AM to 5:00 PM as needed. Some days we would need less hours depending on our work schedule. I am a nurse that works a different schedule every week. It could be 1 day a week that we need someone, up to 3 days a week some weeks. You must have a car and feel comfortable with pets, as you would have to feed our large Labrador Retriever and let him out to go potty (just open back door). Experience with multiple children is a must. Duties would include keeping the children safe, preparing snacks, engaging them in play, and ensuring they follow routines. Our 3 year old does attend preschool M W F from 9 am-12:30 pm but we can arrange transportation for her via a different caregiver if not interested in driving to and from. We hope to find someone warm and reliable to support our family!