Find an occasional babysitter for my infant starting May 1st

Hello sitters! We are looking for a reliable babysitter starting May that can occasionally watch our now seven month old. We are both healthcare workers who have varying shift schedules, so the numbers of days we need help in a week can vary from frequency, duration, and time periods. Days we need help could range from 3-9 hours, but we would let you know schedules 1-2 months ahead of time. We also have a 45 lb hound, but we would not require any care for her. (Although you’re more than welcome to take them all out for a walk if you feel like it). Please let us know if you have further questions!