John Barker, AIA
Director of Architectural Operations

As Director of Architectural Operations, John Barker is responsible for leading the architectural team, overseeing all phases of architectural projects, and managing design workflow and staffing. Through his organized and efficient direction, design projects are completed on-time and advanced to the next phase of PSD’s integrated process.
John attended Rensselaer Polytechnic Institute, receiving a Bachelor of Architecture degree. Born on Cape Cod and raised in Harwich, John interned on the architectural team at PSD while in college. After graduation, he worked for about five years in Boston at various architecture firms, including Sasaki Associates and Russo Barr Associates, before ultimately returning to PSD. John, a licensed architect in the state of Massachusetts, is an active member of the American Institute of Architects.

Aaron Polhemus
Owner & CEO

Peter Polhemus, AIA
Founding Partner

John R. DaSilva, FAIA
Design Principal

Mike Merrill
Director of Finance and Business Operations

Jill E. Kay
Controller

Sharon DaSilva
Senior Designer

John Barker, AIA
Director of Architectural Operations

Rob Calderaro
Senior Landscape Architect

Scott Jadovich
Director of Construction/Project Director

Jeff O’Neil
Director of Construction Operations/Project Director

Stephen Sullivan
Director of Property Services/Project Director

Matt Rollinson
Project Director