Babysitter needed for 3 kids, flexible start on September 17th

We want a reliable babysitter for our three children, who are a toddler, a preschooler, and an elementary school student. The start date is September 17th, but we can be flexible to find a good fit.
You will engage the children with age-appropriate activities, supervise playtime, and ensure their needs are met throughout the day. The home has a large German Shepherd dog, but you will not need to care for the dog—just be comfortable being around pets.
We look forward to finding the right person to join our family.