Environment Artist David Ballard used to work with Naughty Dog on games like Uncharted and The Last of Us, but left the studio last September to join Ubisoft's San Francisco office. After nine months with the Watch Dogs and Assassin's Creed developer, he left and walked back through the doors of Naughty Dog.
Ballard was working on a "AAA next-gen title" over at Ubisoft, but there's no other information available on that title. But now that he is back at Naughty Dog, Ballard has a new position: Multiplayer Level Layout Artist.
Naughty Dog should be showing off Uncharted 4: A Thief's End for the PlayStation 4 at E3 2015 next month.