Jörg Kunz - Windows/Linux Consultant - Strengthening Cybersecurity

Q: Where is Jörg based?

Jörg is based in Siegsdorf, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Jörg speak?

Jörg speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Jörg have?

Jörg has at least 32 years of experience. During this time, Jörg has worked in at least 20 different roles and for 15 different companies . The average length of individual experience is 2 years and 7 months . Note that Jörg may not have shared all experience and actually has more experience.

Q: What is Jörg's latest experience?

Jörg's most recent position is Windows/Linux Consultant - Strengthening Cybersecurity at Kommunale Versorgungskassen Westfalen-Lippe .

Q: What companies has Jörg worked for in recent years?

In recent years, Jörg has worked for Kommunale Versorgungskassen Westfalen-Lippe , Raiffeisen Informatik , EDG Deutschland GmbH , Autorisierte Stelle Bayern , and Authorized Authority Bavaria .

Q: Which industries is Jörg most experienced in?

Jörg is most experienced in industries like Information Technology (IT) , Government and Public Administration , and Telecommunication . Jörg also has some experience in Aerospace and Defense , Insurance , Media, and Entertainment and Publishing .

Q: Which business areas is Jörg most experienced in?

Jörg is most experienced in business areas like Information Technology (IT) , Operations , and Project Management . Jörg also has some experience in Customer Service and Product Development .

Q: Which industries has Jörg worked in recently?

Jörg has recently worked in industries like Telecommunication , Government and Public Administration , and Information Technology (IT) .

Q: Which business areas has Jörg worked in recently?

Jörg has recently worked in business areas like Information Technology (IT) , Project Management , and Product Development .

Recommended expert

Siegsdorf, Germany

Experience

Dec 2023 - Present

2 years 3 months

Windows/Linux Consultant - Strengthening Cybersecurity

Kommunale Versorgungskassen Westfalen-Lippe

Participated in projects aimed at strengthening the client's infrastructure against current IT security threats.
Windows Server (from 2008)
Linux servers (mainly Ubuntu LTS)
PKI
VMWare / vSphere
Red Hat Ansible
checkmk

Aug 2022 - Nov 2023

1 year 4 months

Linux Application Manager - Supporting SMART PaaS Application Management for the Raiffeisen Bank Group Data Center

Raiffeisen Informatik

Collaborated in PaaS application management
Linux Red Hat 7/8 (updates/upgrades)
Red Hat OpenShift (container management)
Apache Tomcat (installation and updates/upgrades)
UrbanCode Deploy (UCD)
Ansible
Atlassian Jira
General application management The project mainly involved maintaining the RedHat-based Linux infrastructure on Red Hat OpenShift and standardized virtual machines. This included applying patches and updates and troubleshooting malfunctions. This was done natively on the command line under Linux and via UrbanCode Deploy. Ansible was used for installation and configuration management of the containers and VMs. Outdated Tomcat and Jira installations were manually upgraded to current versions in development and production environments. Work was managed through Jira tickets, independently prioritized and executed. Regular releases of critical enterprise software were carried out in defined maintenance windows, sometimes in the evenings, overnight, and on weekends.

May 2021 - Oct 2021

6 months

System Monitoring Consultant with Icinga2

EDG Deutschland GmbH

Consulting and implementation of a system monitoring solution including satellites in distributed networks
Linux (Ubuntu, Debian)
Windows Server
Windows 10
Icinga2 with various extensions
Graphite
Grafana

Apr 2021 - Jun 2022

1 year 3 months

Subproject Lead for User Representation/Rollout in the ALUS Project

Autorisierte Stelle Bayern

Piloting and rollout of the final system for programming digital pagers (ALUS – AlarmierungsUpdateSystem) in the BOS/TETRA network in Bavaria for nPOL
CA Service Desk Manager (ticket system)
Standard software tools (Office, etc.) In the course of introducing digital pagers, the software solution rollout was organized and coordinated. This included preparing on-site training for users in Bavaria and providing and updating documentation (manuals, etc.).

Jun 2020 - Dec 2020

7 months

Monitoring Consultant

Onesense Solution GmbH

Migration and expansion of an existing monitoring setup with Icinga2
Ubuntu 18.04
Icinga2
Icingaweb2
Grafana
Graphite

Jul 2019 - Apr 2021

1 year 10 months

Subproject Lead for Concept, Testing and Implementation of a Digital Pager Device Programming System

Authorized Authority Bavaria

Concept, testing and setup of a system for programming digital pagers for nPOL services in Bavaria
Development of a custom protocol for Over-the-Air (OTA) programming
Steering and coordination of developers and creating technical prerequisites for OTA controls
Windows 10
Windows Server 2016, 2019
Linux (Ubuntu)
Icinga2 (including Graphite, Grafana, Nagvis)
VMware ESXi and ESX; vSphere
GitHub Server
Sepura FRT (fixed-mount radios)

Jul 2017 - Jun 2019

2 years

Subproject Lead for Service and Rollout in Digital Radio Bavaria

Authorized Authority Bavaria

Rollout of the final device programming system in Bavaria (>30 sites)
Setup monitoring for the infrastructure of the central nPOL digital radio programming system
Windows 10
Windows Server 2008 R2, 2012 R2, 2016
Linux (Ubuntu, Debian, etc.)
Icinga2 (including Graphite, Grafana, PNP, Nagvis)
VMware ESXi and ESX from 5.5; vSphere
Sepura Radio Manager from 2.3x
Motorola ITM from V6.02
Migration of virtual servers from the interim system to the final system
GitHub Server
Linux shell and Windows PowerShell scripting

Sep 2015 - Dec 2020

5 years 4 months

Consulting and Implementation of Monitoring for Authorized Authority Bavaria

Authorized Authority Bavaria

Concept and setup of a system monitoring solution based on Nagios / Icinga2
Linux (Ubuntu, Debian, etc.)
Icinga2 (including Graphite, Grafana, PNP, Nagvis)
Windows Server 2019 including WSL

Dec 2013 - Jun 2019

5 years 7 months

Technical Project Lead Linux/Windows in Digital Radio Bavaria

Authorized Authority Bavaria

Implementation of a decentralized interim update solution (device programming) for digital radio (BOS) in Bavaria
Development of a system monitoring solution based on Icinga2 for Authorized Authority Bavaria
Participation in the development of a final central system using VPN
Windows 7, 8.1, 10
Windows Server 2008 R2, 2012 R2, 2016
SCCM
Linux (Ubuntu, Debian, etc.)
Icinga2 and OMD (including Graphite, Grafana, PNP, Nagvis)
VMware ESXi and ESX from 5.5; vSphere
Sepura Radio Manager from 2.3x
Motorola ITM from V6.02
Linux shell and Windows PowerShell scripting

Jul 2013 - Sep 2013

3 months

Monitoring Consultant (Nagios)

Siemens AG

Adapting a monitoring solution to specific requirements in Microsoft AD
Optimization of Nagios checks related to MS AD
Various adjustments in visualization (NagVis) and workflow
Microsoft Windows AD
Windows Server from 2003
Linux (Ubuntu, Debian, etc.)
Nagios (OMD) including various plugins
PowerShell and Bash scripting
PHP
Documentation

Mar 2013 - Jul 2013

5 months

System Support with a focus on Windows Server and VMware

Landeskrankenhaus Salzburg

General administration and installation of Windows Servers (2003–2012) and migration of physical machines to a virtual environment
Management of the VMware environment and running VMs
Distribution of hotfixes
Troubleshooting issues
Creation and customization of virtual machines based on customer requirements
Migration of virtual machines to newer ESX versions
Live migration of VMs within NetApp storage
Documentation
Windows Server 2003–2012
VMware ESX, vSphere, VMware Web Client
NetApp
Symantec NetBackup

Oct 2012 - Dec 2012

3 months

Nagios/Icinga monitoring upgrade and data center operations administration

FOXit GmbH

Preparation of version upgrades and expansion of existing monitoring
Administration of data center operations
Nagios / Icinga (OMD) and various plug-ins
Linux (Debian / Ubuntu)
Windows Server 2003–2008 R2
Shell scripting
PowerShell
VMware ESX (vSphere etc.)
KVM (virtualization)

Jul 2012 - Sep 2012

3 months

Web Services Administration

Siemens AG

Administration of internal web servers on Windows (IIS) and Linux (Apache, Tomcat)
Windows Server 2003–2008 R2
Linux (Debian, SUSE)
IIS
Apache
Tomcat
Nagios
Shell scripting
PowerShell

Aug 2011 - Apr 2012

9 months

Consulting and setup of a monitoring project (“Self-Service” Monitoring)

x-root GmbH

Development of a self-service monitoring tool based on Nagios/Icinga
Linux (Debian)
Nagios / Icinga and various plug-ins
Shell scripting
Windows (servers from 2003), clients from XP
SNMP
VPN, OpenVPN
Firewalling with iptables
Project management with JIRA
Citrix XenServer 5.x
JasperReports Server
Tomcat and GlassFish as development tools

Jun 2011 - Sep 2011

4 months

Upgrade Enteo Netinstall 6.x to DSM 7

Allianz Global Assistance

Upgrade of the FrontRange Enteo 6.x environment to DSM 7
Setup of Windows patch management with WSUS
Windows Server 2008 R2
Windows SQL Server
FrontRange Enteo Netinstall 6.x
FrontRange DSM 7.x
Microsoft WSUS Server
Microsoft Windows XP, 7
Microsoft MSI

Jul 2008 - Dec 2010

2 years 6 months

System administration of the existing environment and later migration

Allianz Global Assistance

System administration of the environment and planning and implementing migrations
Windows Server 2000–2008 R2
Windows XP–7
Microsoft SQL Server
Microsoft WSUS
Microsoft Exchange (2003, 2007, 2010)
Lotus Domino and Notes
Linux (Debian, RedHat, CentOS, SUSE)
Samba

Oct 2005 - Jul 2007

1 year 10 months

System integration and administration

CA Scanline GmbH

Setup and administration of the infrastructure (servers and render farm) for up to 150 staff in the film project 'Lissi and the Wild Emperor'
Linux (SUSE, RedHat, Debian)
Database and file server on SLES 9.x
VMWare Server
Windows 2000, XP
Samba as AD DC server

Nov 2004 - Oct 2005

1 year

Hardware assembly for storage (SAN/FC)

Various clients

Built multiple SAN/FC storage systems for:
Leibniz Computing Center Munich
GFS Munich
Max Planck Institute for Plasma Physics
Max Planck Institute of Biochemistry Martinsried / Munich

Apr 1998 - Aug 2004

6 years 5 months

System administration of internal systems

HAITEC AG

System administration and user support of internal systems
Microsoft Server NT–2003
Windows 95–XP
Terminal Server NT / Metaframe - 2003
Novell NetWare 3.x / 4.x
Linux (Debian)
AIX 4.3.3–5.2
Monitoring with Netsaint / Nagios
Trend Micro SMB / Interscan VirusWall
Windows Update Server
Checkpoint Firewalling
Tivoli TSM Backup
Microsoft Office since 95

Jan 1991 - Dec 1998

8 years

Independent IT service provider

Part-time retailer and IT service provider

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (12.5 years), Government and Administration (9 years), Telecommunication (8.5 years), Aerospace and Defense (6.5 years), Insurance (2.5 years), and Media and Entertainment (2 years).

Information Technology

Government and Administration

Telecommunication

Aerospace and Defense

Insurance

Media and Entertainment

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (32 years), Operations (10.5 years), Project Management (8.5 years), Customer Service (7.5 years), and Product Development (2.5 years).

Information Technology

Operations

Project Management

Customer Service

Product Development

Summary

I have professional IT experience since 1991 (and have been working with computers in general since 1982). After a few years as a system engineer employed at an IT system house, I have been a full-time freelancer/self-employed since 2004.

I have extensive knowledge of Windows (from Windows 3.1 onward) and Linux (in recent years focused on Debian and Ubuntu and their derivatives, but also RedHat, CentOS, and to a lesser extent SLES). In various data centers, I primarily set up server and client infrastructures and provided user support as needed. I have also gained a lot of experience with various tools (e.g., ticket systems) and methodologies (e.g., ITIL) in modern IT.

Other focal points are monitoring (including visualizations; since 1999) of system environments, mostly with Nagios, checkmk, and Icinga (1 and 2), as well as virtualization (various vendors and solutions – e.g., VMWare, Proxmox). I really enjoy working with alternative, possibly unfamiliar, heterogeneous environments.

Skills

Public Sector
Banking
It System House
Film And Media
Healthcare
Insurance
Call Center
Software Development
It Consulting

Languages

German

Native

English

Advanced

Certifications & licenses

Prince Foundation

Prince Practionier

Profile

Created

September 2023

Last Update

July 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Jörg based?

Jörg is based in Siegsdorf, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Jörg speak?

Jörg speaks the following languages: German (Native), English (Advanced).

How many years of experience does Jörg have?

Jörg has at least 32 years of experience. During this time, Jörg has worked in at least 20 different roles and for 15 different companies. The average length of individual experience is 2 years and 7 months. Note that Jörg may not have shared all experience and actually has more experience.

What roles would Jörg be best suited for?

Based on recent experience, Jörg would be well-suited for roles such as: Windows/Linux Consultant - Strengthening Cybersecurity, Linux Application Manager - Supporting SMART PaaS Application Management for the Raiffeisen Bank Group Data Center, System Monitoring Consultant with Icinga2.

What is Jörg's latest experience?

Jörg's most recent position is Windows/Linux Consultant - Strengthening Cybersecurity at Kommunale Versorgungskassen Westfalen-Lippe.

What companies has Jörg worked for in recent years?

In recent years, Jörg has worked for Kommunale Versorgungskassen Westfalen-Lippe, Raiffeisen Informatik, EDG Deutschland GmbH, Autorisierte Stelle Bayern, and Authorized Authority Bavaria.

Which industries is Jörg most experienced in?

Jörg is most experienced in industries like Information Technology (IT), Government and Public Administration, and Telecommunication. Jörg also has some experience in Aerospace and Defense, Insurance, Media, and Entertainment and Publishing.

Which business areas is Jörg most experienced in?

Jörg is most experienced in business areas like Information Technology (IT), Operations, and Project Management. Jörg also has some experience in Customer Service and Product Development.

Which industries has Jörg worked in recently?

Jörg has recently worked in industries like Telecommunication, Government and Public Administration, and Information Technology (IT).

Which business areas has Jörg worked in recently?

Jörg has recently worked in business areas like Information Technology (IT), Project Management, and Product Development.

Does Jörg have any certificates?

Jörg has 2 certificates. These include: Prince Foundation and Prince Practionier.

What is the availability of Jörg?

Jörg is immediately available part-time for suitable projects.

What is the rate of Jörg?

Jörg's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.