University degrees in history and philosophy, work as a teacher, then as a typesetter. From 1994 to 2002, Ms. Buntenbach was Member of the German Bundestag for the Green Party Bündnis 90/DIE GRÜNEN. Subsequently, she headed the division of social policy at the federal board of the Building, Agricultural and Environmental Workers Union (Industriegewerkschaft Bauen-Agrar-Umwelt IG BAU). Since 2006, Ms. Buntenbach has been elected Member of the Federal Executive Board of the Confederation of German Trade Unions (Deutscher Gewerkschaftsbund DGB), alternate chair of the Board of Governors of the Federal Employment Agency (Bundesagentur für Arbeit) as well as alternate chair of the Board of the german statutory pension insurance scheme (Deutsche Rentenversicherung Bund DRV Bund).
Ms. Buntenbach has been member and deputy chair of the German Social Advisory Council since 2007.