Babysitter - Full-time / Part-time

We are looking for a great nanny/babysitter for 1 child. Child is on the ASD spectrum, so he goes to school full time but in the summer he goes to a summer program Tuesday-Thursday 8am-1 p.m. Will need help with after school and some weekends as I work at the hospital working 12 hour shifts. The hours will vary as my mother do help out when she can.