Babysitter - Full-time / Part-time

I am looking for a great sitter for my autistic son in Clearwater. I need someone who has their own car, who is comfortable with pets and who is CPR certified. He is 15 and can be alone, but does not have transportation from his high school. My schedule is different each week. Need a flexible person who would be willing to stay with him for a short time after school. And possibly sit with him on weekends when I work or if I have a day trip. Willing to work with you on a weekly price, as this will be a good reoccurring job.