| 1964-1965 | Schloemann, Düsseldorf | Metallurgical plant designer |
| 1965-1968 | Military service | |
| 1968-1975 | Berliner Maschinenbau AG, Berlin | Group Leader Sales – Tube Manufacturing Plants, erection and commissioning supervisor for (spiral) tube manufacturing and coating plants |
| 1976-1978 | Buse, Bad Hönningen | Responsible for the sale of chemical systems (e.g. CO2 generation systems for the beverages industry) for the territories of the Near and Middle East, Scandinavia and the former Eastern Bloc states |
| 1978-1994 | Mannesmann Demag AG - Meer, Mönchengladbach | Group Leader - Project Planning and Sales for tube manufacturing and Coating plants, worldwide |
| 1995-1997 | Joint Venture between Mannesmann Demag AG and Baosteel, Shanghai, China (DMPT) | Head of a Sales department and representative of Mannesmann Demag AG - Meer in the joint venture for the whole Meer product spectrum |
| 1998-2009 | Mannesmann Demag AG - Meer, Mönchengladbach (now SMS Group) | General Manager of "Central Marketing" department, worldwide |
| 2009-2011 | Various companies in Germany and abroad | Consultant Engineer – Metallurgical Plant Marketing |
| 2012 - 4.2016 | ITA (International Tube Association), Düsseldorf; www.itatube.org | Executive Secretary (The only worldwide active member association for the tube & pipe industries) |
| 4.2016 - currently | Various companies in Germany and abroad | Consultant Engineer – Metallurgical Plant Marketing |