Before School or After School Work

We are looking for a great after school nanny/sitter for 2 children in San Jose to look after them while my husband and I wrap up our workday. Schedule is Wed 12-6, other weekdays 3-6 and could vary as kids sign up for after school activities. I work from home and would be responsible for school pickup. We would prefer someone who could help out with light housekeeping and homework help. We would prefer a babysitter who has their own car, who does not smoke and who is comfortable with pets.