Childcare Needed - Now Hiring

I am looking for an after school babysitter for my 10yo daughter in Marblehead 1-2days/week. The days would vary week to week (because my work schedule varies) but would be Mon, Tues, Thurs, or Fri and I could give you the schedule way in advance. Hours would be 2:15 until around 6:15-7:15. Would entail ensuring homework is done, simple dinner prep, and activities to keep her mostly after screens. I do also have an almost 16yo son who may occasionally need a ride in town but is otherwise independent. Must be non smoker with excellent driving record. Thanks!