Babysitter Needed for my Children

We are looking for a warm, reliable mother's helper in Mission Bay, San Francisco, starting as soon as possible. Hours are Monday, Tuesday, and Thursday, 2-8 p.m. , plus Saturday, 8 a.m. -noon. The role combines support caring for our toddler son, age 2, with helping his mother manage the children's daily routines and occasional newborn care alongside her. We would like someone with toddler and infant experience who enjoys play and can lend a hand where needed with the children. We have a dog, so please be comfortable with pets. Please share your availability, relevant experience, and references.