Part Time Caregiver Needed For 3 Children

I have 3 school aged children- ages 10, 8, and 6. I am looking for someone to help with after school care for my children once or twice a week- could be option for more days and/or weekend babysitting for the right person. Could also turn into a daily position over the summer break. Oldest child does plays soccer, football and basketball. He's also an avid reader and enjoys video games. The middle child loves crafts, ballet, and gymnastics. The youngest enjoys books, drawing, karate, and Legos. We are looking for someone who is fun, creative and enjoys high energy activities. My oldest has after school sports almost every evening, and is very self sufficient. The position would primarily be to help play and watch my middle and youngest child. We have a very friendly cat (hypoallergenic breed) but she spends most of the day sleeping.