Stefan Gentzmer

Basic

Vorstandsmitglied, Geschäftsführer, CO4S GmbH

Abschluss: EDV-Kaufmann (IHK), Nixdorf Computer AG

Essen, Germany

Skills

Teamkommunikation
Digitales Wissensmanagement
Beratung
IT-Projektmanagement
Modern-Workplace
Scrum
KANBAN
Agile Methoden
.NET Framework
Office 365
Networking-Booster
Windows 10
Visual Studio
C#
.Net Core
.NET
MS-SQL
RFID
Blazor
Android
Visual Basic 3.0
VB3
Visual Basic 6.0
VB6
Clipper
VB.NET
Windows 2000
dbase
Windows 7
SQL
ASP.NET
Jabber
XMPP
GPS
XML
XSD OpenScape
optiClient
CTI
VoIP
Windows XP
SIP
CSTA
TAPI
HiPath
H.323
ACD
VPN
WLAN
Windows Phone 7
Presence
Collaboration
Windows Vista
ApplicationSharing
Testman
Beckhoff
ASP.NET Core
Event-Management
Konferenz-Management
Community-Organisator
Strategischer Einkauf

Timeline

Professional experience for Stefan Gentzmer

  • Current 5 years and 8 months, since Mar 2016

    Geschäftsführer

    CO4S GmbH

  • Current 8 years and 9 months, since Feb 2013

    .NET-Entwickler

    Leopold Kostal GmbH & Co. KG, Lüdenscheid

  • Current 26 years and 10 months, since Jan 1995

    Geschäftsführer, Software-Architekt

    Software-Technologie

  • 4 years and 9 months, Jul 2013 - Mar 2018

    .NET-Entwickler

    5Minds IT-Solutions GmbH & Co. KG

  • 2 years and 1 month, Mar 2010 - Mar 2012

    .NET-Entwickler

    dSPACE GmbH

  • 15 years and 9 months, Jan 1995 - Sep 2010

    .NET-Entwickler

    Unify GmbH & Co. KG formerly Siemens Enterprise Communications

  • 2 years, Jan 1993 - Dec 1994

    Software-Projektmanager

    Siemens Nixdorf Informationssysteme AG

  • 3 years and 1 month, Jan 1990 - Jan 1993

    Software-Entwickler

    Nixdorf Computer AG

Educational background for Stefan Gentzmer

  • 2 years, Sep 2000 - Aug 2002

    Internationales Management

    Hoogeschool Zeeland (NL)

  • 5 years, Sep 1997 - Aug 2002

    Betriebswirtschaft

    Fachhochschule für Oekonomie & Management (Essen)

  • 6 years, Sep 1996 - Aug 2002

    Wirtschaftsinformatik

    Fachhochschule für Oekonomie & Management (Essen)

  • 1 year, Feb 1992 - Jan 1993

    Nixdorf Computer AG

  • 3 years and 1 month, Jan 1990 - Jan 1993

    Nixdorf Computer AG

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