Sitter Job in Philadelphia, Pennsylvania

Hello, I am looking for someone would be available on call to help me out with my two children they are ages 1 months and 3 soon to be 4. I am currently a part-time student, Tuesdays and Thursdays I am in school from 6:30pm-9:30pm. I am looking for someone to come to my home during those hours and care for my two children. Duties may include: light meal prep, cleaning after the children, bathing the children, teaching them, reading to them, going over homework with my 4 year old, and general child caring duties. I also need someone who is available on call, to either come to my home and occupy the children while I perform the duties of my second job. Or take them to outings for a few hours. This would also be true for anytime I may need extra assistance, so individual must be flexible.