Babysitter - Full-time / Part-time

We are looking for an after school nanny for 2 children aged 8 and 9 in McKinney. It would require picking up the kids from school and driving them to the park to play or to our house. They get out at 2 p.m. in the Craig ranch area and we live in downtown mckinney. I would prefer someone who could help out with homework help too. We would prefer a babysitter who has their own car, who does not smoke, who is comfortable with pets and who is CPR certified.