Since October 2010: Freelancer Systems Engineering Consultant
Since June 2020: Co-Editor of ISO/IEC/IEEE 15288 next revision
Since January 2019: INCOSE Technical Director
Since January 2017: Member of oose Innovative Informatik eG
January 2017 – January 2019: INCOSE Deputy Technical Director
November 2013 – January 2017: Director Technology and Methods at GfSE e.V. (German Chapter of INCOSE)
June 2005 – September 2010: Different positions at a consultancy company
April 2002 – May 2005: Consultant at a consultancy company
November 1993 – February 2002: Physics (diploma and PhD at universities Erlangen–Nürnberg and Hamburg)