Holger G.
Managing Director (IT)
Experience
Jan 2009 - Present
16 years 8 monthsManaging Director (IT)
Holger Grittner Consulting
Jan 2001 - Dec 2009
9 yearsManaging Partner (IT)
Polygon GmbH
Jan 1989 - Dec 2001
13 yearsFreelancer and Lecturer (IT)
Self-employed
Jan 1985 - Dec 1989
5 yearsHilden, Germany
IT Application Developer
Frank Neul und Holger Grittner GbR
Jan 1981 - Dec 1984
4 yearsApprentice
Apprenticeship as Central Heating and Ventilation Technician
Jan 1969 - Dec 1981
13 yearsStudent
School education
Languages
German
NativeEnglish
AdvancedEducation
Oct 1981 - Jun 1984
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Central Heating and Ventilation Technician · Germany
Oct 1969 - Jun 1981
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Secondary school diploma · School education · Germany
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