Too complex for a regular freelancer. Too small for an agency. That's where I come in.
I'm Claus Siebeneicher. I think myself into problems fast: from NATO systems architecture to local AI workflows, WordPress infrastructure, regulatory analysis or an AI poster for your theatre production. Senior depth, no agency overhead, no minimum project volume.
Fast, self-contained work for problems that need real thinking but not a big-machine engagement. Hourly, fixed scope or small packages. Remote from Brussels, Berlin and wherever the work needs to happen.
Problems people bring me
"Our system is unstable and we don't know why."
Firefighting & Root-Cause Analysis →"Our AI project isn't delivering results."
Critical Intervention →"We have too many tools and no clear architecture."
Systems Architecture →"An audit is coming and we're not prepared."
Security & Audit →"We need to understand regulation without drowning in documents."
Regulatory Intelligence →"We need something practical: automation, AI, content, infrastructure."
Local AI Deployment →Firefighting & Root-Cause Analysis
Your system is unstable and the root cause is unclear. I isolate it fast — pattern recognition from 40+ years of mission-critical systems. No workarounds, actual fixes.
Learn more →Critical Intervention
When the situation is stuck and internal bandwidth is exhausted. I step in, work through the problem independently, and hand over a documented result. 2–10 days.
Learn more →Systems Architecture
From grown tool landscape to a system that fits. Current-state mapping, target architecture, migration path — without the vendor agenda.
Learn more →Security & Audit Resilience
Risk analysis, backup validation, recovery tests. Security that holds under scrutiny — not hope, a documented plan.
Learn more →AI as a controlled tool — not a black box
I run a local LLM environment on dedicated hardware — no cloud, no data leaving your infrastructure. Controlled, auditable and reproducible. Used for document analysis, knowledge extraction and decision support in client projects. Not a product. A working approach.
- Runs on your infrastructure — no external dependencies
- Every output traceable: inputs, reasoning, results documented
- Pilot in weeks, not months
The third option
Some problems are too broad for a simple freelancer task, but too small or too specific for an agency process. That is the space I work in: enough seniority to understand the whole system, small enough to move quickly, and practical enough to deliver the thing instead of only describing it.
Two stories. One explanation.
Nurburgring, 1997. Grand Prix of Luxembourg.
Race Control is the nerve centre of a Formula 1 race. Every safety car call, every red flag, every marshal deployment goes through that room. The problem: the wall was full of monitors. The traditional paper track map — gone. I was asked, at very short notice, to replace it.
The result: a single large monitor showing the full interactive track layout, live-connected to the Race Control radio system. It worked. Bernie Ecclestone was in the room. He shook my hand.
That year I also built something else: a GPS/GSM mesh tracking system for truck swap bodies — working prototypes, live internet visualisation, real logistics companies as pilot partners. No venture capital. No market. In 2021, Apple released it as AirTag.
I don't tell these stories as complaints or as boasting. I tell them as an explanation: I recognise problem structures early, build fast, and deliver under pressure. That hasn't changed.
Proof in practice
PolicyMonitor
Built an AI-assisted regulatory analysis pipeline for EU directive vs. German law comparisons, including source-linked reporting and gold-plating detection.
Local vision audit
Built a local vision-LLM media audit workflow for a large WordPress library, keeping image analysis reproducible and under local control.
Infrastructure diagnosis
Documented and reported a TLS certificate-chain misconfiguration on public-sector infrastructure, with a clear technical finding and remediation path.
Applied systems I build myself
PolicyMonitor and ShellAgents are not slideware. They are working systems developed from real projects: regulatory analysis, auditable AI orchestration and local model workflows without vendor lock-in.
Negotiation Agents
Strategic modelling. AI-powered diplomatic simulations with 41 behavioural archetypes and full audit trail.
negotiation.brusselsinnovation.com →PolicyMonitor Studio
Regulatory intelligence automation. Automated EU source tracking, evidence-based triage and briefing workflows.
monitor.brusselsinnovation.com →ShellAgents
Sovereign automation backbone. Modular, AI-driven workflow automation — file-based, auditable, no vendor lock-in.
Learn more →Background
- 2005 – 2014Senior Systems Engineer / Senior Architect at NATO (NACMA/NCI Agency) — systems architecture and interoperability for Air C2; member of the international NAF development group; agency representative in NIASCOG (NATO/EUROCONTROL); NATO focal point for SESAR (Single European Sky); contact with US Missile Defence Agency
- 1987 – 2004Senior Systems Engineer at ELEKLUFT (Daimler-Benz Aerospace) — radar measurement, automated test systems, UNIX/C, reverse engineering; parallel: own system house with deployed projects for Formula 1 Race Control and NATO agencies
- 1980 – 1986German Air Force (Luftwaffe) — radar electronics, shift leader large-area radar
- ParallelFounder photoresk.com · Visual communication · AI-generated graphics · Virtual galleries (Unity) · Drone flying & photogrammetry · President Circle of Diplomatic Artists, Brussels