Nanny Needed For My Children

I am a single dad of two boys who works as a firefighter with 24 hour shifts. I am looking for care on a rotating schedule ideally from someone with access to Hanscom AFB and a reliable car. Hours would include 1-2 day shifts (7 a.m. to 6:30 pm) per week. Would consider candidates able to provide overnight care at my apartment in Winchester, but not required.