Graduate in Economics. He has been a Member of the European Parliament for the Greens/European Free Alliance group (2014-2016) and a Member of the Catalan Parliament in the VII, VIII, IX and XII legislatures (2003-2004, 2006, 2010-2012 and 2018). Until 2003, he carried out most of his political activity in Barcelona City Council, first as Councillor for Finance and Public Function and President of the Sant Andreu District Council, and subsequently as Councillor for the Presidency and Finance. President of the Municipal Institute of Information Technology, President of the Municipal Institute of Finance and Vice-President of the Municipal Institute of Education. For the Government of Catalonia, he has been Secretary of the Government (2003-2006), Minister of Education (2006-2010) and Minister of External Action, Institutional Relations and Transparency (2018).