Mediatis AG is a webhosting company. It offers their customers a wide range of products, including Typo3, Drupal, and comprehensive support for cloud services.

Key Achievements:

• Cloud Infrastructure: Management and administration of Entra ID, Azure, and AWS for enterprise and customers
• AWS Consulting: Cross-Account Roles, Security Best Practices, and Cost Optimization
• Infrastructure as Code: Salt/Terraform/GitLab CI/CD administration, Terraform restructuring with Trivy integration and modularization
• Kubernetes Migration: 12+ month long-term project (Oct 2024 - Nov 2025) - complete migration from legacy infrastructure to production K8s cluster
• Kubernetes Setup: Authentik, MariaDB Operator, Velero Backups, PostgreSQL Cluster, FluxCD GitOps, GitLab Runner - production operations established
• Security Management: Vanta, Greenbone, Firewall Management, Vulnerability and Patch Management, Security Incident Response (Nov 2025)
• Compliance: ISO 27001:2022 and NIS-2 documentation, Stage 1 Audit successful (Nov 2025), internal and external audits
• AWS Certifications: SAP-C02 (Nov 2024) and DOP-C02 (Jan 2025) Professional-level within 3 months, ~120h preparation time
• Network Security: VPN migration OpenVPN to WireGuard (Feb 2025), DNSSEC implementation for all domains, comprehensive firewall reviews
• IT Support: Mac/Windows support, MDM management (Mosyle), Hardware onboarding (MacBooks, iPhones), VPN administration
• Customer Projects: Minerva Image Viewer deployments (Alzheimer Dataset, SpectraPlex, multiple Stories), Kubernetes clusters, Enterprise hosting solutions (Betasystems, Stonebranch, Huck Seiltechnik)
• Monitoring: Grafana/Prometheus/Loki administration, Incident Management, On-Call support for critical issues
• Backup & Recovery: Backup strategies, Recovery tests (Nov 2024), AWS Cross-Account-Role-Assume setup (Dec 2024)
• Optimization Projects: SharePoint cleanup (Jul 2024 & Jul 2025), Docker infrastructure migrations to docker-compose, Jira/Confluence Data Residency move (Sep & Dec 2024)
• Standardization: Created Storyblok hosting template and documentation as company standard
• Professional Development: Participated in AWS Community Day DACH (Oct 2025), continuous knowledge transfer and mentoring

Key Achievements:

• Conducted comprehensive industry research and market analysis
• Developed strategic career planning and professional development strategies
• Collaborated with career services to optimize job search effectiveness

Focused period of personal and professional development

Key Achievements:

• Strategic career planning and skill development
• Family time and work-life balance prioritization
• Professional networking and industry research

Registry for the ccTLD 'de'.

Key Achievements:

• VMware (Operation and Upgrade) [5 years]
• Postfix (Change from Exim) [3 years]
• Exim (old system, changed to postfix, maintainance) [3 years]
• Jira (Scrumtool for all DevOps and DevSecOps Teams. Setup, Operations, Upgrade, Automation) [5 years]
• Confluence (Documentation tool for the whole company, Setup, Operations, Upgrade, Automation) [5 years]
• OTRS (Ticketsystem for one special department. Setup, Operations, Upgrade, Automation) [5 years]
• Saltstack (Configuration Management for Automation) [3 years]
• Cfengine (Configuration Management for Automation, replaced with saltstack) [3 years]
• Jenkins (Build-Tool, Pipeline-Tool with Groovy-Scripts) [5 years]
• RPM-builds for Atlassian-products (Automated build of RPMs for Jira and Confluence with semi-automated Upgrade) [5 years]
• Zabbix (Monitoring of all services and important parameters) [5 years]

Registry for the ccTLD 'de'.

Key Achievements:

• Education/Trainee as Information Technology Specialist Systemintegration
• Finished with 1.2
• directly taken after Trainee finished.

One of the worlds largest companies for Oil/Gas Water Boilers

Key Achievements:

• Building Gas-Water-Boilers.

OpenSource Linux distribution, Source based.

Key Achievements:

• High level user community support for installing and maintaining Funtoo Linux. Improvements and bug fixes to the core of Funtoo Linux and all its packages. Maintaining Flora as the core developer. It is a non-payed, just for fun work, where you add as much time as you can on a voluntary base.

Homeschooling tutoring company.

Key Achievements:

• Homeschooling/Tutoring in math and chemistry with personalized one-on-one lessons.

IT Service Freelancer

Key Achievements:

• Building of home and business level computer, telecommunications systems and user level support. Only used if friends ask for help.

Store and Gas Station

Key Achievements:

• facilitating day-to-day operations and maintenance.