Babysitter - Full-time / Part-time

I'm looking for a babysitter to pick up my son and take him to school in the morning and then pick him up after school and watch him until 6 o'clock every day during the week. My son has autism, but he is a very happy and sweet boy and I just need some help watching him for the last couple hours of the day while I'm at work. This will be a long-term position and during the holidays I may need more extensive help if I have to work during school vacation days.