About

I’m a Linux Domain Expert at 50Hertz, the transmission system operator for north and east Germany. As an architect I design our Red Hat Linux environments and advise application managers and external service providers, with a focus on automation, containerisation with OpenShift, on-premises AI deployments and security.

Before that I worked in high performance computing at Volkswagen: I designed cluster hardware, brought containers to the HPC platform, tuned batch workflows and supported the machine learning workloads running on it.

At home I run a small Kubernetes homelab, managed entirely through GitOps. This site is served from it.

In my spare time I take electronics apart and reverse engineer them, tinker with microcontrollers and restore old computers. To balance that I go kayaking and hiking.

Career#

1. 08.2025 – now

   Linux Domain Expert
   50Hertz Transmission GmbH (Elia Group)

   • Architecture of the Red Hat Linux environments, compliance and security policies, technology roadmap
   • Consulting for application managers and external service providers
   • Linux automation with Ansible (deployments, patching, compliance checks)
   • Containerisation and OpenShift
   • On-premises AI deployments

2. 08.2023 – 07.2025

   High-Performance Computing Engineer Specialist
   Volkswagen AG

   • New middleware for the switch from IBM LSF to Slurm
   • Monitoring built from scratch on Prometheus and Grafana
   • Responsible for HPC containers; contact for GPU and ML workloads
   • Job submission from OpenShift and Kubernetes platforms to the HPC clusters
   • Project manager of an HPC workload exchange between Volkswagen Group brands
   • Hardware demand planning, installation of new HPC clusters, sunsetting of old ones

3. 04.2019 – 01.2023

   Solution Designer for High-Performance Computing
   Volkswagen Group IT Solutions GmbH

   • Deploying, testing and operating applications on the HPC platform (IBM Platform LSF; Bash, Perl, Python, C++)
   • Workflow analysis and optimisation, coupling of applications
   • Support of engineering departments (ESI Pam-Crash, Abaqus, MSC Nastran, ANSYS)
   • Monitoring of job flows (Bash, PHP, JavaScript)
   • Project lead for containers on the HPC platform (Podman, Artifactory)

4. 02.2019 – 03.2019

   Linux System Engineer
   CSP GmbH

   • Linux server infrastructure, configuration management and deployments with Puppet
   • Virtualisation, monitoring, firewalls and storage (KVM, Ganeti, AWS EC2, Icinga, OPNsense, GlusterFS, DRBD)

Contact#