Part-Time Summer Nanny In Mount Pleasant

I am looking for a part-time summer nanny, primarily for my 11-year-old son, but his 15-year-old brother may be present when not working (but will not need any support). I just need someone to stay with him while I am at work, to help with meal prep, and to drive him to events/camps. I share custody and am looking for a nanny who is able to provide consistent care at both my place and their mothers place. We both live within 1. 5 miles of each other in North Mt Pleasant. The schedule at my house would be Monday - Friday from 0900 - 1500 (flexible on hours, especially if a full 8-hour day is desired) and the schedule at their mothers house would be 4 days per week, approximately 4 hours per day (flexible on hours and days). We alternate custody every other week. Reliable transportation and a clean driving history is required.