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Professional experience (12 years, 3 months)
Dec 1997 - present
(12 years, 3 months)(The company name is only visible to registered members)
Industry: Computer Software
Jun 2007 - present
(2 years, 9 months)SektionEins GmbH, http://www.sektioneins.de
Industry: Computer & Network Security
Sep 2003 - Mar 2005
(1 year, 7 months)
Status
Entrepreneur
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Johann-Peter Hartmann's groups (12 of 30)
