Not a career changer. An engineer who has been building systems for decades.
I'm Claus Siebeneicher. Since 1980 I've worked with complex technical systems — from radar installations to NATO architecture to local AI. I solve problems others consider too tangled.
Career
- 2014 – present C-7 — IT consulting, security and systems architecture for associations, SMEs and sensitive organisations. Berlin and Brussels, remote and on-site.
- 2005 – 2014 NATO / NACMA — Senior Systems Engineer in the Requirements & Architecture division. Architecture and interoperability for the Air Command and Control System (ACCS). Representation in NATO committees. NATO SECRET clearance.
- 1987 – 2004 ELEKLUFT GmbH, Bonn — Systems engineering for Air Force and NATO radar systems. Automated test systems, C programming, radar data analysis, UNIX system administration. Built up the ATE department at ESDAŞ in Ankara.
- 1980 – 1986 German Air Force (Luftwaffe) — Radar electronics technician and shift leader for large-area radar (FPS-89). Assessment: technical skills "excellent", leadership "good".
- 1976 – 1980 Trained as energy systems electronics technician (IHK Kassel). Followed by distance learning in microprocessor technology and computer technician qualification (Control Data Institute, grade: "excellent").
Beyond IT
Technology is my profession. But not everything. I've built virtual galleries with Unity, fly drones for photogrammetry, founded photoresk.com and served as President of the Circle of Diplomatic Artists in Brussels.
This background isn't a hobby footnote — it trains the eye for connections that purely technical specialists miss.
Working Principles
- Clarity before tool selection
- Prioritisation by risk and impact
- Traceable decisions, not black boxes
- Documentation as a component, not an afterthought
- No selling solutions you don't need
Collaboration
- Clarify context: Make business goal, constraints, risks and time horizon explicit.
- Analyse: Translate current state, bottlenecks and dependencies into a prioritised plan.
- Implement: Execute measures in controlled steps and verify with clear criteria.
- Hand over: Documentation and enablement so your teams can continue independently.
Awards and Recognition
- NCI Agency Certificate of Appreciation — NATO service 2005 to 2014
- NACMA Certificate of Appreciation — Senior Systems Engineer 2005 to 2012
- NATO HQ Certificate — outstanding support of the C3 Policy Working Group (2010)
- Recognition by the NATO Air Traffic Management Committee
- Recommendation by the Permanent Representative of Germany to NATO (2008)