Wayne David was elected Member of Parliament for the Caerphilly constituency in June 2001. In October 2008 he was appointed as the Parliamentary Under Secretary of State in the Wales Office. Between June 2007 and his appointment he was a Government Whip for the Department for Work and Pensions and the Wales Office.

Before entering Goverment, he was a Member of the European Scrutiny Select Committee and the Standards and Privileges Committee.

Wayne has a long-standing interest in developing links with Poland and Bulgaria. Because of this he joined the All Party Parliamentary Group on Poland and served as its Chair. In 2006, he established an All Party Parliamentary European Union Group, which he chaired until June 2007. In addition, he was also an office-holder in the All Party Parliamentary Groups on Iraq and Madagascar, as well as being the Secretary of the Welsh Group of the Parliamentary Labour Party (PLP) and Secretary of the PLP's Committee for the Department for Work and Pensions.

Previously, Wayne was a Parliamentary Private Secretary to the Ministry of Defence Team and then to the Minister for the Armed Forces, Adam Ingram. In 2006 he resigned from this position. 

Before being elected to Westminster, Wayne worked for the Youth Service in Caerphilly and had special responsibility for supporting voluntary youth organisations like the YMCA. For 10 years he was a Member of the European Parliament for South Wales and was Leader of the Labour Group. He also played a key role in securing Objective 1 funding for West Wales and the Valleys.

Before being elected to the European Parliament, Wayne worked in the Rhymney Valley as a lecturer and organiser for the Workers' Educational Association. He lectured on Trade Union Health and Safety and shop steward courses, and taught classes on a range of political and economic subjects.

Born and brought up in a former mining community, Wayne comes from a mining family. He has lived in the South Wales Valleys all his life.