Claus-Stefan Duffner
Inhaber, Digital Business Mentor, Kongresshero, Claus-Stefan Duffner
Schönwald, Germany
Skills
Timeline
Professional experience for Claus-Stefan Duffner
- Current 5 years and 11 months, since Mar 2020
Digital Business Mentor, Kongresshero
Claus-Stefan Duffner
Für Unternehmer mit Herz - Strategie, Technik & Mindset
- Current 28 years and 5 months, since Sep 1997
Inhaber und Geschäftsführer
ISDD GmbH
- 21 years and 11 months, Sep 1999 - Jul 2021
Head of IT-Infrastructure KOEPFER Group
KOEPFER Holding GmbH
- 21 years and 11 months, Sep 1999 - Jul 2021
Leitung IT-Infrastruktur
KOEPFER Holding GmbH
Educational background for Claus-Stefan Duffner
- 4 years, Sep 1995 - Aug 1999
Wirtschaftsinformatik
Hochschule Furtwangen University
Business Networking
Languages
German
First language
English
Fluent
French
Intermediate
Spanish
Basic
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