Between 2010-2014, he worked in Brussels as a member of the cabinet of the European Commissioner for research, innovation and science. In this capacity, he advised the European Commission on the best strategies that it should put in place within an international context concerning research, innovation and science matters. He was also the sherpa for the European Union at G8 summit meetings that dealt with these important policy issues.
Between 1998-2010, David worked in Brussels as a political advisor in the European Parliament. He covered a diverse range of policy issues including in the areas of trade, the digital agenda, foreign affairs and industry. He was also director of press and communications for the main government party in Ireland for three referenda campaigns that dealt with the ratification of different European Union treaties in the years 2002, 2008 and 2009. David is a qualified lawyer, having graduated from the Incorporated Law Society of Ireland in 1998.