Babysitter Needed for my Children

We are looking for a great nanny for 2 children in Denver. We would prefer a nanny who has their own car and who does not smoke. We would need help from 12:15-2:45 Monday-Thursday until Aug 18. We need full time care on July 16th, and August 10-14 which would be 6:45 through 2:45 those dates. Pay commiserate on experience. We want the kids outside during the day when possible.