Babysitter Needed for my Children

We are looking for a great nanny for 2 boys in Upper Fremont. One child is 4 years old and attends preschool from approximately 9am-1 p.m. M-F. The other was born at the beginning of this year. Nanny would be responsible for walking older child to school, with younger accompanying. Nanny would be needed to care for both boys the remainder of the day until parents returned from work (flexible end time). We would prefer a nanny who does not smoke and who is comfortable with cats.