Claus-Stefan Duffner
Inhaber, Digital Business Coach & Mentor, Claus-Stefan Duffner
Schönwald, Germany
Timeline
Professional experience for Claus-Stefan Duffner
Current 3 years and 7 months, since Mar 2020
Digital Business Coach & Mentor
Claus-Stefan Duffner
Für Unternehmer mit Herz - Strategie, Technik & Mindset
Current 26 years and 1 month, 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