October 2010-
Part-time Professor of Energy Law and Policy, European University Institute, Florence

October 2019- 
Principal, Baker & McKenzie 

April 2018-September 2018
European Commission, Adviser 'Hors Classe', Directorate-General for Energy.

November 2014-April 2018
European Commission, Deputy Director General, Directorate-General for Energy, responsible for coordination of energy policy, and specifically international affairs, gas markets, regional integration. 

January 2010 – November 2014
European Commission, Cabinet of Mr Piebalgs, Commissioner for Development
Head of Cabinet, responsible for general co-ordination of development policy; and notably the conception and implementation of the Agenda for Change, the Commission's approach in development terms to the preparation of the Post-2015 Instrument that will replace the Millennium Development Goals, and the design and promotion of the Energy for All initiative together with the UN.

November 2008 – January 2010
European Commission, Directorate-General for Energy and Transport
Director, responsible for New and Renewable sources of energy, Energy Efficiency and Innovation; in particular for the implementation of the Renewable Energy Directive and the design, conception and negotiation of the labelling and energy efficiency standards.

2004 – 2008
European Commission, Cabinet of Mr Piebalgs, Commissioner for Energy
Deputy Head of Cabinet, responsible for co-ordination and strategic development of energy policy; notably the conception, design and negotiation of the EU's "20-20-20" Energy programme, as well as the design, conception and negotiation of the EU Renewable Energy Directive.

1997 – 2004
European Commission, Directorate-General for Energy and Transport
Head of Unit C2 “Gas and Electricity”, Responsible for all issues regarding gas and electricity, notably the design, conception and negotiation of the second gas/electricity internal market Directives and Regulation on conditions for access to the network for cross-border exchanges in electricity, as well as the design, conception and negotiation of the Athens treaty, creating a regional electricity market in South-East Europe and integrating this into the EU's market. For part of this period, also acting Head of Unit, Oil and Gas.

1994 - 1997
European Commission, Directorate-General for Competition
Personal Assistant to the Director-General for Competition; firstly Director-General Ehlermann, thereafter Director-General Schaub.

1993-1994
European Commission, Directorate-General for Competition
Member of DG IV-A-1 dealing with horizontal issues in competition policy; in particular responsible for design, conception and negotiation of the new Form A/B for notifying agreements, the new de-minimis notice, the notice on anti-trust immunity and the preparatory work leading to the green paper on vertical restraints.

1992 -1993
European Commission, Cabinet of Sir Leon Brittan, Commissioner for Competition policy
Member of the Cabinet, responsible for anti-trust, mergers, Ex-Article 90 (liberalisation, in particular telecoms, terminal equipment and post), audio-visual and infringements.

1989 - 1991
European Commission, Directorate-General for Competition
Responsible for setting up the Merger Task Force. This included drafting the relevant implementing legislation and administrative arrangements. Thereafter, case handler in the Merger Task Force.

1985-1989
European Commission, Directorate-General for Competition
Desk officer, anti-trust cases, dealing principally with foodstuffs and pharmaceuticals.

1984 – 1985
Bank Brussel Lambert - Corporate banking division
Desk officer, UK/Scandinavia/Japan.