Animal Care Needed - Full-time / Part-time

We have a 1-year-old Pitt mix who is very friendly and needs a walk in the middle of the day when we are gone. He is pretty good at walks but occasionally pulls if he is excited. Very treat motivated. Has a lot of energy and could benefit from a longer walk. We also temporarily have my brothers Pitt, she was rescued much older and is very nervous around people she does not know. Not aggressive just very shy. Once she warms up she is wonderful! She has recently had hip surgery so would not need a long walk but rather just to go down to use the bathroom and walk for 15 min.