Babysitter - Full-time / Part-time

We are looking for a great baby sitter for 2 girls (toddler 3 yrs & baby 11 months) in Miami. We would prefer someone who is CPR certified. We have a big older lab dog but she's on the side of the house, sleeps most of the time now. Would like someone that can practice with the toddler her preschool skills if possible (such as cutting and writing her name, she's already doing pretty good) otherwise really just someone loving, caring that can watch them for a couple of hours Monday- Thursday 4-7 p.m. more or less.