1985 - 1991

System Engineer at Siemens AG, Telecommunications working on Software development and data processing concepts for Command, Control, Communication and Integration Systems of the German Navy and Air Force

1991 - 1993

Luftverkehrs-Personalgesellschaft mbH (LUPEG) providing technical advise and support in the ICAO Secondary Radar Improvement and Collision Avoidance System Panel (SICASP) and EUROCONTROL EASIE Communication and Router Specialist Support Team (C&R SST)

1993 - 1997

Working for DFS Deutsche Flugsicherung GmbH as Project manager for the development and implementation of the DFS networks (radar and flight plan data) within Germany

1997 - 1998

U.S. Federal Aviation Authority (FAA) working as DFS Liaison Officer in the FAA Headquarter in Washington D.C.

1998 - 1999

Program Manager for the development and implementation of the new DFS center system P1/ATCAS within Germany

1999 - 2001

Head of DFS overall System Planning and Coordination

2001 - 2005

Chief Executive Officer (CEO) of GroupEAD Europe S.L. being responsible for the European-wide EAD Service Provision on behalf of EUROCONTROL

Since 2006

Head of Navigation and Surveillance in DFS Deutsche Flugsicherung GmbH and responsible for the flight inspection within DFS