Naughty Dog posted on its LinkedIn account an opportunity for an experienced game designer to join its highly acclaimed development ranks.
The required prerequisites are pretty robust. Naughty Dog is looking for someone to "Act as producer for levels you design, as well as other parts of the game, collaborating across disciplines to get work done and clear dependencies, ensuring deadlines are met, and championing aspects of the gameplay." Specifically, Naughty Dog listed an importance on the single-player aspect by saying, "Responsible for the planning, level layout, setup and tuning of single-player levels, from high concept to object placement and scripting."
A couple years ago, shortly after Uncharted 2: Among Thieves was released, a similar hiring took place. Perhaps this is a secret start once again to another epic addition to the Uncharted series.