Nanny Needed - Full-time / Part-time

We’re looking for care for my niece and nephew. My sister in law, me, and my brother are the primary people to watch them, but my sister in law just started working again so we need someone to fill in days when our schedules overlap. This would be a good job for a high school or college student, but must be able to drive. My niece has school M-Th 12:30-3:10 p.m. We need someone trustworthy and experienced. CPR and first aide is a huge plus.