A member of the AFT executive committee, Hecker was first elected as an AFT vice president in 2004. He is co-chair of the AFT organizing committee and also serves on the AFT Teachers program and policy council, as well as the AFT advisory committee on state federations.
Hecker also serves as executive vice president of the Metropolitan Detroit AFL-CIO and is a member of the Michigan State AFL-CIO executive council. He is also an officer-at-large of the Michigan Democratic Party.
Hecker is active with various civic organizations. He is on the boards of New Detroit, the Metropolitan Affairs Corporation, the Education Alliance, and the Jewish Community Relations Council. He is chair of the Jewish Labor Committee (JLC)-Michigan and serves on the JLC national board. He is past president of the metro Detroit chapter of the Industrial Relations Research Association.
Hecker has been a member of the AFT since 1977 and has served as president of the Teaching Assistants Association Federation, the union of graduate assistants at the University of Wisconsin-Madison. He is currently a member of the Lamphere (Mich.) Federation of Teachers. From 1986 to 1996, Hecker served as executive assistant to the president of the Metropolitan Detroit AFL-CIO.