Looking for after-school babysitting for 2 fun 6 years olds - Full-time / Part-time

I'm looking for an after-school babysitter for a 6 year old boy and a 6 year old girl. Hours would be 3-5:30p twice a week, ideally on Mondays and Wednesdays (we are open to different days of the week and potentially adding additional days). The sitter would pick them up from school and watch them on the playground or at one of the child's houses. The school and the children's homes are located in the Graduate Hospital area. Looking for someone reliable and punctual who enjoys spending time with children.