| 1995-1996 | Diplomat |
| | Economic relations with the former Yugoslavia States, Turkey, Cyprus, Albania and Greece. |
| | Secretariat of DG Economic affairs. |
| | Preparation to the Italian Presidency. |
| 1996 | Relations with the European Parliament and negotiation for the adoption of the Euro |
| | European Commission - General Secretary |
| 1997 | Participation in the negotiation of the Amsterdam Treaty |
| | Expert at the Cabinet of the Commissioner Marcelino Oreja Aguirre |
| 1998 | Desk officer Bosnia - Herzegovina and regional cooperation |
| | European Commission - DG External Relations |
| 2000-2004 | Political advisor and member of the cabinet of the European Commissionn President Romano |
| | Prodi |
| 2004-2005 | Political advisor to the European Commission President Jose Manuel Barroso |
| 2001 | Coordinator of the Stability Pact and of regional cooperation initiatives in the Balkans |
| | European Commission - DG External Relations |
| 2005 | Diplomatic advisor to President of the Italian region of Puglia, Nichi Vendola |
| 2006 | Member of the committee for the election campaign of Romano Prodi |
| 2006-2008 | Member of Parliament - President of the bicameral committee on Schengen, Europol, |
| | Immigration |
| | I Parliamentary Commission on Constitutional Affairs (Substitute of the Prime Minister) |
| | XIV Parliamentary Commission on European Union Policies |
| | President of the Federalist parliamentary Intergroup for the European Constitution |
| | European policies adivsor to the Prime Minister |
| 2006 | Deputy Secretary-General of the European Democratic Party |
| 2007-2008 | Member of the Democratic Party national directorate |
| | Member of the Party's commission for the definition of the "Charter of values". |
| | Elected in the Party's national assembly in support of Walter Veltroni. |
| 2008-2013 | Member of Parliament - Group leader of the Democratic Party at the parliamentary |
| | Commission on EU policies |
| | President of the Committee for the examination of the European policies |
| | Co-President of Federalist parliamentaryIntergroup for the European Constitution. |
| | President of the parliamentary group for the Italy-India friendship. |
| | Member of the bicameral Committee on Schengen,Europol and Immigration. |
| 2013 | Present Vice-President of the parliamentary Assembly of the Council of Europe |
| Present Unpaid advisor to the Municipality of Rome |
| | Unpaid advisor to the Major of Rome Ignazio Marino on matters related to the European funds and |
| | projects. |
| Present Member of Parliament - President of the Italian parliamentary Delegation to the Assembly of the Council of Europe |
| | XIV Parliamentary Commission on European Union Policies. |
| | Co-President of the Federalist parliamentary Intergroup for the United States of Europe. |
| 2014 | Present Under Secretary of the Italian Government in charge of European Policies |
| Present Vice-President of the Socialist Group at the parliamentary Assembly of the Council of Europe |
