Pet Care Needed - Full-time / Part-time

We have a 5-year-old female Newfoundland, Natalia. She is a huge sweetheart and definitely a gentle giant. We travel just a weekend here or there to mainly visit family or to go see our grandchildren and sometimes we take a week vacation. Its typically just one night. We leave Saturday morning and we would need a caregiver to let her out around 5-6pm, give her dinner and visit her for a couple of hours and let her out one more time before bed. Then we would require someone to let her back out Sunday morning around 8-9 a.m. and feed her again. Then we normally return late afternoon/early dinner time.