Afternoon Nanny needed in Brentwood

We are looking for an energetic and happy college educated nanny who can commit to our family for a few years. Mom is going back to grad school, dad works from home ( you wont see him a lot though) and you will be responsible for two happy girls. The girls are 4 and 7 and they will be in school and camp until about 1 pm . We would love to find someone who is flexible to work 30 hours this summer and then in the fall go back down to 20 hours. Family guarantees 20 hours per week no matter what, Monday through Friday and they pay $20 per hour cash. West side applicants only and dog friendly too as there is a pug in the house!