Flexible Evening Nanny for 2 kids ages 4 and 7

We are looking for a nanny/bb sitter for our two kids, aged 7 (girl) and 4 (boy) for 2-4 afternoon/evenings per week until August. Ideally someone who can pick them from school/camp (and therefore has a valid drivers license) and can get their dinner out for them, do a little cleanup etc. and just sort of be around for them. My husband will be working in a studio in our back yard so will be on the property if anything is needed but just needs a little more time to work in the day, and I work out of town. He can do their school pick up if needed but would prefer to not to, if possible! Our kids are friendly and play independently much of the time, although in the beginning would probably love to show you everything. The schedule can be pretty flexible as far as days and times go, my schedule is unpredictable but if consistency is best for you we can commit to whichever days you prefer. (Part-Time, Live-Out) For evening (nanny-attendant)