After-school Care Needed For 8 Year Old

We are looking for a great babysitter for 1 child . Looking for a care provider for after school and some weekends if needed. 8-year-old boy- primary hours are 3 p.m. to 7 p.m. Mon to Fri Ideally someone with experience and able to help with homework, etc. My son is extremely bright and advanced educationally in third grade, he also has high functioning autism. We would prefer someone who could help out with light meal prep and homework help. We would also prefer a babysitter who has their own transportation and we are also near public transportation. As a note, payment will be through respite care under NYS OPWDD, the selected person would be a contractor with our affiliate agency that handles the budget for care for my son. Someone experienced with special needs or respite would be preferred.