Energetic Babysitter for Toddler Twins

Hello! We need a babysitter for our fun and loving boy and girl toddler twins. They are 21 months, very smart, playful, loves adventures, singing and dancing. The hours would mainly be during the day (morning- late afternoon). You will prepare snacks, put them down for nap and supervise playtime. We value someone who can communicate well and build a positive relationship with our children. l am looking for someone during the weekday [9:30-4PM]. The day needed may be flexible week to week, but eventually will turn into a full-time nanny position by the end of June - September 1. Thanks!