Representative, Commonwealth of Massachusetts House of Representatives, 2002-2015

Chief of Staff, State Senator Joan Manard, 2000-2002

City Councilor, City of Newburyport, 1998-1999

Vice-Chair, Newburyport, Democratic City Committee, Commonwealth of Massachusetts, 1997-1998

Field Director, United States Congressman John Tierney Campaign, 1998

Chair, Joint Committee on Public Safety and Homeland Security

Principle Partner, Marris and Costello, Limited Liability Partnership, 2003-present

Attorney, Private Practice, 2001-present

Assistant District Attorney, Essex County, 1997-2000

Program Director, Alcoholism and Drug Abuse Association, 1990-1993

Chair, American Bar Association Legislative Committee

Member, Board of Directors, Link House Programs, Incorporated

Member, Board of Directors, Northern Essex Mental Health

Member, Greater Newburyport Chamber of Commerce

Member, Massachusetts Bar Association

Corporate Member, Opportunity Works