Physicist; Elementary Particle Physics, Quantum-Mechanics and Mathematics at University of Karlsruhe, scientist at Fraunhofer Community (Institute for Chemical Technology, Pfinztal) from 1992.

In 2005 Olaf Jedicke took up a lead position at Project Management Agency, which acts in behalf of the National Ministry of Education and Science (BMBF). 2011 Senior Scientist at ITES Institute of Thermal Energy Systems and Safety. Lectures at KIT in “Hydrogen Technology”, Buenos Aires ITBA "Hydrogen Safety", IEES BAS "Renewable Energy Technology" and "Higher Mathematics and Numeric" since 2000 at the University of Cooperative Education.

Since 2014 Member of the Advisory Board FCH Joint Undertaking within Hydrogen Europe Research responsible for Cross Cutting Research Activities; Vice Chair Evaluation Panel REA 2023, Evaluator and Expert in different Horizon Europe Calls and Programs.

Having begun his career as Assistant to the Permanent Representative in Brussels for Aérospatiale Matra (Airbus), Mr Maillard joined the Ministry of Foreign Affairs in 2002 as Head of the India section, before joining the EU constitutional treaty task force. He was posted in several countries abroad including at the French Embassy in Beijing (China) and in Rome (Italy) as Deputy Head of mission. 

Building on these first successful international experiences, Mr Erkki Maillard was appointed adviser to the Minister of Foreign and European Affairs (2009-2010) before being promoted as Chief of staff of the Minister of European Affairs (2010-2011) and Chief of staff of the Minister of Higher Education (2011-2012). 

In 2016, Mr Erkki Maillard, joined EDF Group as Senior Vice-President International Relations and Diplomatic adviser to the CEO Jean-Bernard Lévy. In November 2019, he was also appointed Senior Vice President for EU affairs. 

Mr Maillard, holds a Bachelor in Modern History (1995) he graduated from ENA « Ecole Nationale d’Administration » in 2002 and holds a Master Degree in Law and Economics from Sciences Po Paris as well as in Marketing at the European School of Management (ESCP) 

On his free time Mr Maillard is supporting Chemins d’avenirs, a non-profit organization dedicated to the promotion and the mentoring of young people living in the French countryside. Together with Mrs Salomé Berlioux he wrote an essay on this topic “Les Invisibles de la République” (2018, Robert Laffont publisher). He has also published op ed in several media (Le Monde, Les Echos). 

Frank Grewe completed his studies in mechanical engineering at the beginning of 2007 and started his career at 2G Energietechnik GmbH. He passed through several positions in the company during his career and is now CTO and member of the board of 2G Energy AG, responsible for R&D and service.