Christoph Holzer - Managing Director; Senior IT Infrastructure & Cybersecurity Consultant

Q: Where is Christoph based?

Christoph is based in Weilheim in Oberbayern, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Christoph speak?

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

Q: How many years of experience does Christoph have?

Christoph has at least 14 years of experience. During this time, Christoph has worked in at least 7 different roles and for 5 different companies . The average length of individual experience is 2 years . Note that Christoph may not have shared all experience and actually has more experience.

Q: What is Christoph's latest experience?

Christoph's most recent position is Managing Director; Senior IT Infrastructure & Cybersecurity Consultant at h2 IT-Solutions GmbH .

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

In recent years, Christoph has worked for h2 IT-Solutions GmbH and EOS GmbH .

Q: Which industries is Christoph most experienced in?

Christoph is most experienced in industries like Energy , Information Technology (IT) , and Utility Services . Christoph also has some experience in Banking and Finance .

Q: Which business areas is Christoph most experienced in?

Christoph is most experienced in business areas like Information Technology (IT) , Project Management , and Strategy and Planning . Christoph also has some experience in Operations .

Q: Which industries has Christoph worked in recently?

Christoph has recently worked in industries like Information Technology (IT) and Banking and Finance .

Q: Which business areas has Christoph worked in recently?

Christoph has recently worked in business areas like Information Technology (IT) , Project Management , and Strategy and Planning .

Recommended expert

Weilheim in Oberbayern, Germany

Experience

May 2021 - Present

4 years 10 months

Managing Director; Senior IT Infrastructure & Cybersecurity Consultant

h2 IT-Solutions GmbH

Employed full-time since July 2021
IT strategy consulting, IT management consulting, IT personnel development and planning, interim IT management
Designing and implementing virtualization solutions (VMware, Microsoft Azure, Citrix Xen, Proxmox, DataCore, NetApp)
Software deployment (Microsoft Intune/Endpoint Manager), Microsoft Endpoint Manager migration projects
Microsoft Exchange (Online M365, on-premises): review, design, and migration projects
Infrastructure hardening after cyber attacks, consulting on cyber attack prevention, security testing
End-to-end IT infrastructure design, technical project management
Microsoft Active Directory, Group Policy Management, Windows Server 2012, 2016, 2019, 2022
Designing and implementing hybrid infrastructures (on-premises, M365, Azure, Azure AD, Azure Virtual Desktop)
Planning and executing technical measures for TISAX and ISO 27001
Developing and enhancing IT security concepts, supporting the implementation of SIEM and SOAR solutions
Supporting the development of disaster recovery concepts and backup strategies

Feb 2020 - Jun 2021

1 year 5 months

Krailling, Germany

Group Leader IT Operation Service

EOS GmbH

Leading a team of 12 colleagues
Responsible for global IT infrastructure operations
Budget planning and monitoring
Personnel development and training
Responsible for BCM, disaster recovery, and operational IT security
Responsible for IT infrastructure strategy and global infrastructure design
Continuous development of global IT infrastructure, creating a global IT roadmap, cloud infrastructure (Azure, Citrix)
IT project management

Mar 2018 - Jan 2020

1 year 11 months

Geretsried, Germany

Deputy Head of IT Infrastructure

Tyczka GmbH

Aug 2017 - Feb 2018

7 months

Geretsried, Germany

Leadership responsibility

Tyczka Energy GmbH

Jan 2015 - Mar 2018

3 years 3 months

Geretsried, Germany

Senior IT System Administrator

Tyczka GmbH

Jul 2012 - Jul 2017

5 years 1 month

Geretsried, Germany

Head of IT Infrastructure

Tyczka Totalgaz GmbH

Technical responsibility for three team members in the IT infrastructure division
Development and implementation of IT concepts and strategies
Involvement in optimizing and monitoring the budget for the IT infrastructure department
Responsibility for Active Directory, Ivanti DSM as well as vSphere 6.7, ESXi 6.7 and DataCore SanSymphony
Conducting internal workshops/trainings for colleagues
Project management for the takeover of IT infrastructure of acquired companies (M&A) (2019–2020)
Taking on project and subproject management tasks within the Tyczka corporate group
Software deployment (Ivanti DSM)
Virtualization (VMware vSphere, DataCore)
Microsoft Active Directory
Microsoft Exchange Server, email archiving
Microsoft SQL Server
IT security (encryption, endpoint security, conducting regular security reviews)

Jan 2012 - Jan 2015

3 years 1 month

Geretsried, Germany

IT System Administrator

Tyczka GmbH

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 Energy (8 years), Information Technology (5 years), Utilities (3 years), and Banking and Finance (1.5 years).

Energy

Information Technology

Utilities

Banking and Finance

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 (14 years), Project Management (11 years), Strategy (5 years), and Operations (0.5 years).

Information Technology

Project Management

Strategy

Operations

Skills

Consulting Focus: It Management, It Strategy; Project Management; It Infrastructure, It Architecture; Cloud Infrastructure & Architecture; Virtual Infrastructures, Modern Workplace; Cyber Security, Cyber Recovery; Siem/soar/soc; Bcm, Backup, Disaster Recovery; Automation, Ai Integrations
Compliance & It Governance: Iso27001; Tisax; Gdpr; Bsi Basic Protection; Nis; Cis; Owasp; Itil V4
Microsoft: Microsoft Azure; Microsoft Azure Virtual Desktop; Microsoft Entra Id (Azure Ad); Microsoft Sentinel; Microsoft Defender For Endpoint; Microsoft Defender For Cloud; Microsoft Compliance (Purview, Dlm); Microsoft Intune (Endpoint Manager); Microsoft Ecm (Sccm); Microsoft Exchange Online; Microsoft Exchange On-premises; Microsoft Active Directory; Microsoft Sql Server; Microsoft Group Policies; Microsoft Teams; Microsoft Sharepoint; Microsoft Onedrive; Microsoft Server 2008 - 2025; Microsoft Hyper-v
Vmware: Vmware Esxi 5.5 – 8; Vmware Vcenter; Omnissa Horizon
Veeam: Veeam Backup & Replication; Veeam Backup For Azure; Veeam Backup For M365
Storage Systems: Datacore; Netapp; Dell Emc; Pure Storage
Firewalls & Networking: Hp Aruba; Opnsense; Fortinet; Cisco
Linux & Open Source: Mysql; Postgre Sql; Xen Server; Xcp-ng; Proxmox; Ubuntu; Debian; Kubernetes; Docker
Scripting & Automation: Powershell; Ansible; Terraform; Bash
Miscellaneous: Kanban; Scrum, Agile Project Management; Jira; Confluence; Servicenow

Languages

German

Native

English

Advanced

Education

Oct 2005 - Jun 2008

IT Management Assistant

Oct 2004 - Jun 2006

State-certified commercial assistant, specializing in Information Technology · Commercial Assistant

Certifications & licenses

Certified Ethical Hacker (CEH V9)

DataCore Certified Implementation Engineer (DCIE V10)

Designing & Implementing Microsoft Exchange Server

Frontrange Infrastructure Certified Professional

Microsoft Certified Professional

VMWare Certified Professional (VCP-DCV)

Profile

Created

August 2025

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Frequently asked questions

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

Where is Christoph based?

Christoph is based in Weilheim in Oberbayern, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Christoph speak?

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

How many years of experience does Christoph have?

Christoph has at least 14 years of experience. During this time, Christoph has worked in at least 7 different roles and for 5 different companies. The average length of individual experience is 2 years. Note that Christoph may not have shared all experience and actually has more experience.

What roles would Christoph be best suited for?

Based on recent experience, Christoph would be well-suited for roles such as: Managing Director; Senior IT Infrastructure & Cybersecurity Consultant, Group Leader IT Operation Service, Deputy Head of IT Infrastructure.

What is Christoph's latest experience?

Christoph's most recent position is Managing Director; Senior IT Infrastructure & Cybersecurity Consultant at h2 IT-Solutions GmbH.

What companies has Christoph worked for in recent years?

In recent years, Christoph has worked for h2 IT-Solutions GmbH and EOS GmbH.

Which industries is Christoph most experienced in?

Christoph is most experienced in industries like Energy, Information Technology (IT), and Utility Services. Christoph also has some experience in Banking and Finance.

Which business areas is Christoph most experienced in?

Christoph is most experienced in business areas like Information Technology (IT), Project Management, and Strategy and Planning. Christoph also has some experience in Operations.

Which industries has Christoph worked in recently?

Christoph has recently worked in industries like Information Technology (IT) and Banking and Finance.

Which business areas has Christoph worked in recently?

Christoph has recently worked in business areas like Information Technology (IT), Project Management, and Strategy and Planning.

What is Christoph's education?

Christoph attended education in IT Management Assistant.

Does Christoph have any certificates?

Christoph has 6 certificates. Among them, these include: Certified Ethical Hacker (CEH V9), DataCore Certified Implementation Engineer (DCIE V10), and Designing & Implementing Microsoft Exchange Server.

What is the availability of Christoph?

Christoph is immediately available part-time for suitable projects.

What is the rate of Christoph?

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