Babysitter Needed

We need a babysitter for maybe 4 days a week while my boyfriend sleeps. He works 3rd shift, 12 hours shifts. His schedule is 4 on and 4 off. He's currently the only one in our household with a drivers license so he does all the drop offs and pick ups, errands and drives about 30-40 mins to and from work so he needs all the sleep he can get. I work 1st shift. So we will need a sitter while I'm working and while he's sleeping. We will have two children, a newborn baby girl and a 9-year-old girl but the 9-year-old is VERY independent. What we're looking for - someone to care for our newborn, supervise our 9-year-old, every once in awhile make the 9 year meals(depending what it is, she can do it herself under supervision) and etc.. the 9-year-old is in school so you'll only have her on weekends or days there's no school.