Animal Care Needed - Full-time / Part-time

I am looking for a house sitter/cat sitter for 2 cats in Pittsburgh. For the cats, they use a Litter Robot littebox which needs the bag emptied/changed once a week. The feeder is automatic but needs checked on occasionally to ensure it doesn't need refilled and the water also needs refilled every few days. They are generally very independent but will get playful and snuggly, especially the more time they are alone so someone to give them attention is important. Finally, would ask whoever is checking in to to do light tasks to keep the house in order during the time I am away such as bringing in packages/mail and take any trash out once a week. Can sleep in the home but not required.