Mine stay home and I’m fortunate that I have two friends who also understand cats who each come once a day - one AM and one late afternoon - to dole out food, check and clean the litter box, and offer some play time.
Having someone come in once a day will work just fine, too.
I don’t leave my cat without arrangement for someone to come in unless I’m only going to be gone for a long weekend - say leaving Friday later in the day and getting back home on Sunday. Even then, if I can have someone check in, I will do that.
Since he’s young and social, try to find a pet sitter who will also take some time to play with him and cuddle a bit.
One week isn’t too long to leave a kitty with sitters coming in. I will say that when I went to the Atlanta Olympics I was gone two weeks, leaving an older kitty home alone with the twice daily visits. By the time I got home she was getting a little weird!