Boston, MA WSP USA has hired Rob DiAdamo as a senior director for the firm’s advisory enterprise management and strategy team.

“We are privileged to have Rob join the WSP team, and eager to learn from his 20-plus years of public and private sector experience managing and improving transportation infrastructure,” said Denise Turner Roth, WSP USA advisory national business line executive. “Rob is critical to WSP’s strategic support of our clients in their ongoing efforts to transform the nation’s infrastructure.”

DiAdamo most recently served as executive director of the commuter rail department for the MBTA.

, where he was responsible for the agency’s commuter rail – the fifth largest in the U.S. – and ferry operations that provide public transportation service to the south shore of Mass. and around Boston Harbor.

DiAdamo’s career has focused on organizational improvements, contract management, service delivery, governance and performance improvement and measurement. DiAdamo will be based in Boston.

Before joining MBTA, DiAdamo founded a transportation consulting firm with the former commissioner of the New York State Department of Transportation, where he oversaw the launch of the first direct train service between Boston and Cape Cod since 1959.

Earlier in his career he served as a deputy general manager for the MBTA, and as general counsel and chief of staff to the state secretary of transportation.

DiAdamo is a graduate of the University of Virginia with a bachelor’s degree in history, Boston University School of Law with a juris doctor degree, and Harvard University with a master’s degree in public administration.