Part-time Nanny Needed For 2 Children (ages 4 And Almost 6) In Seattle

We are looking for a part-time nanny for 2 children. Our daughter will be starting Kindergarten this fall and will turn 6 in October. Our son (4yo) will be in preschool in the same location as his sister. Both kids are social, love to joke, and play well together. We primarily need help with after school pickup, travel to afterschool activities, and child supervision until we get home from work (typically no later than 6pm). Light meal prep or simple cooking would be ideal but not a deal breaker.