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

We are looking for a great babysitter for 2 children in Fairfax. We would prefer a babysitter who has their own car, who does not smoke, who is comfortable with pets, who is CPR certified and who has college degree. This will be mostly for our 10-month-old after daycare, 3-6 p.m. but there may be times we need a sitter for both of our kids. We would also want you to walk our dog (small 20lbs beagle mix) so must be comfortable with dogs. Days are to be confirmed.