Babysitter Needed for my Children - Now Hiring

We are looking for a great nanny our 19th old girl. We are moving to silver springs neighborhood Washington DC on October the 2nd and especially for the first month of our adjustment period our schedule will be varied so would appreciate flexibility, but it would be around 30 hours per week. We would prefer someone who could help out with light housekeeping and meal preparation. We would prefer a nanny who does not smoke and who is CPR certified.