Babysitter Needed for my Children - Full-time / Part-time

We are looking for a part time sitter for my two toddler boys. Hours and days vary each week but the schedule will be known ahead of time. As little as 8 hours a week, as much as 25 hours just depending on my work. Looking for someone very flexible and with experience with toddlers. Must be child CPR certified and a non smoker.