25 years of IT infrastructure experience, built entirely on open source solutions, in critical production environments.
My background spans three complementary areas: electronic engineering (INRACI), web application development (Bureau Van Dijk, 1996–2000), and large-scale infrastructure operations. This combination allows me to work simultaneously on overall architecture and implementation details — from network design down to the packet that does not pass.
Why open source #
Not for ideological reasons. For pragmatic ones, grounded in experience.
Open source solutions give access to the code, the logs, the internal mechanisms. When something does not work, you can understand why — and fix it. With proprietary solutions, you wait for vendor support.
After 25 years, I know the limits of open source as well as its strengths. The question is not “open source or not” but “which tool, for which need, with what operational maturity”.
What I actually do #
- Design and deployment of centralised authentication systems — SSO, MFA, identity federation
- Migration from Microsoft 365 to sovereign open source alternatives (Nextcloud, Collabora, Matrix, Jitsi)
- Multi-site high availability infrastructure — virtualisation (Proxmox), distributed storage (Ceph)
- Network architecture — design, segmentation, access security
- NIS2 compliance — assessment, tooling, implementation of technical measures
- Deployment automation — Ansible, Terraform, Python
- On-premise AI and agents — Ollama, vLLM, LiteLLM, Open WebUI, secure deployment
My approach #
I work on real problems, not theoretical ones. I read the logs, reproduce the failures, test the hypotheses. I commit to results, not billed days.
Education
- Université Libre de Bruxelles — Licence en Informatique (1991–1996)
- INRACI — Qualification A2 Électronique (1989–1991)
Languages
- French — native
- English — professional
- Dutch — passive comprehension