Caregiver Needed For As Needed Basis

We are looking for a caregiver to watch our daughter I. This position is on an as needed basis. My husband and I at times since she was born have need someone to help with s but between family and friends there have been some gaps. We have another daughter who is 9 but has an in home nurse. I would love to have someone who has a background with children, non smoker, have a car (in case of emergency), and willing to play with her. I would like interview before hiring make sure all parties are a fit. Thank you for looking.