Profil:

•  I am a passionate IT architect and consultant for virtual Desktops, Windows & Linux & Container infrastructures.
• For more than 20 years I have been working daily in various large and medium-sized companies and can therefore draw on a wealth of experience in both the design and operation of IT systems.
• My main focus is on the design and development of IT infrastructures in security-relevant environments on-premise and with cloud integration. I have also managed numerous migration projects.
• You benefit from my excellent knowledge in the specialist areas and a very good overview of related topics. My aim is to find a good balance between current trends and state-of-the-art solutions.
• My motto: Delivering added value to my customers every day - with no exception.

Technical Skills:

• Requirements analysis & concept development
• IT network security
• Implementation of IT systems
• Conception and system architecture
• Platform monitoring
• Transition & migration from on-premise to cloud infrastructure
• System administration (VDI / Windows / Linux /Container)
• Service & incident management
• Project management

General Skills:

• Self-motivated & structured way of working
• Team leadership
• Management of external service providers

Highlights:

•  25 years of experience in enterprise IT infrastructure
• 25 years experience Citrix Virtual Apps and Desktops
• 19 years of experience as IT consultant for Windows and Linux
• 14 years of experience in virtualization (VMWare, XenServer, KVM)
• 14 years of experience in systems monitoring (Check_MK, Nagios, Icinga, Zabbix)
• 11 years of experience Citrix NetScaler ADC
• 6 years of experience in the cloud based environment (ownCloud, NextCloud, Azure/Entra)
• 3 years experience Nutanix environment (Nutanix AHV, Prism, Files)

Project management tools:

• Microsoft Projekt
• Jira
• Confluence

Plattforms:

• Univention Corporate Server
• Red Hat IDM (IAM, DHCP, DNS)
• Microsoft Active Directory
  

Systems administration:

• MS Windows 7 ? 11
  
• MS Windows Server 2003 ? 2022 (auch Terminal Services)
• Microsoft / Linux 
  • DNS, DHCP
  • Active Directory
  • Group Policies
  • User & System management
• Ubuntu Linux 14.04 ? 24.04
• RedHat Enterprise Linux 6 - 9
  
• Suse Linux 11 ? 15
  
• Debian 6 ? 12

Authentifizierung:

• RSA Multi Factor Authentication 
• Microsoft ADS 
• Azure MFA
• KeyCloak IDM (SAML, OIDC)
• Microsoft NAC / FreeRadius
  

• Citrix XenServer 5.x ? 8.x 
• Microsoft Hyper-V 2012R2 ? 2022
  
• VMware ESXi 7.x 8.x
• Docker
• OpenShift

Cloud:

• Microsoft Azure