Work & Skills

Product manager who still builds.

I'm a Senior Product Manager at Porsche, working on cloud-native platforms. I lead with strategy and flow, and I keep my engineering hands-on: everything in the lab on this site is built and run by me.

Get in touch Explore the lab
A narrow paved path winding through trees in autumn colours, yellow on the left and red on the right.
An autumn path. Photo: Ben Matheja

What I can do

Each skill links to something you can read or inspect.

Product and portfolio

  • Product strategy for platform products: vision, roadmaps, outcomes over output
  • Agile at scale SAFe release trains, PI planning, flow metrics
  • Portfolio steering across several teams and locations
  • Coaching product owners and teams

See the experience below

Platform engineering

  • Kubernetes on Talos Linux, Cilium, ingress and certificates
  • GitOps with Flux, External Secrets
  • Infrastructure as code OpenTofu, Ansible, Proxmox
  • CI/CD GitLab pipelines, semantic-release, Renovate

See the lab

Identity and operations

  • SSO with Authentik: OIDC and forward auth for every service
  • Secrets in Vault, short-lived tokens instead of root tokens
  • Observability Prometheus, Loki, Tempo, OpenTelemetry
  • Backups with restic, tested restores

Post: Replacing root tokens with SSO

AI and agents

  • Agent workflows with Claude Code: a main session plus focused minions
  • MCP servers and a gateway that puts them behind SSO
  • Model choice frontier models to plan, cheaper ones to execute
  • Local LLMs measuring what small models can and cannot do

How I work with AI

Experience

  1. 2022 – today

    Senior Product Manager

  2. 2019 – 2022

    IT Product Owner

  3. 2016 – 2019

    IT Project Manager

  4. 2010 – 2016

    B.Sc. and M.Sc. Information Systems

    University of Münster.

Role details are in the CV, on request.