Self-employed, Belgium
Independent professional development and contracting
- Registered as self-employed in Belgium. Developing practical tools for cost reduction and continuing professional development.
Operational Excellence & Cost / Value Engineering Leader
I am a mechanical engineer with 20+ years of professional experience, including over 19 years at Toyota Motor Europe. I lead operational excellence and cost / value engineering work, from shop-floor launch stability to cross-functional cost programmes. Annual programme savings grew from about €5M to over €20M a year by 2024, a team result. I am based in Zaventem and open to permanent and interim roles in Belgium.

Results
I coordinated cost-reduction work between Engineering, Purchasing and suppliers. I also built a dashboard to help teams focus on the highest-value ideas. One example was a supplier change for the next-generation Corolla’s wireless phone charger, which saved more than €4M a year.
I received three Toyota Value Analysis (VA) Awards (2 in R&D, 1 in cost reduction).
My work at Toyota began on the factory floor, improving the processes used to make car parts. I later led engineering work for new vehicles and coordinated cost reduction across European programmes.
Working across these areas helped me connect design decisions with what happens in production.
My approach is straightforward: understand the problem, bring the right people together, and check whether the change worked.

Practical tools
I built this tool to help people understand costs, compare improvement ideas and follow actions through to results. It brings the problem, decisions and follow-up into one place.
Try the free app A3 Cost Reduction Pack on GumroadA generic exterior mirror. Take it apart to explore the decisions behind a lower-cost design.
I help small and medium manufacturers in Belgium cut cost and save time. I combine 19+ years of Toyota cost reduction and Lean experience with practical AI tools: faster quotes and reports, clear cost dashboards, A3 problem solving and simple automations your team can use every day. A first project can be a short fixed-price pilot of 2 to 3 days.
Discuss a pilot projectOver 19 years, my work grew from production engineering to R&D project management and cost-reduction leadership.
Earlier experience

Working across teams and countries
NUCB Business School, Nagoya University of Commerce & Business, Japan
Istanbul Technical University
Yildiz Technical University
Beyond work
I learn by making things. Guventech is my workshop for it: 3D printing in the physical world, and software experiments in the digital one.
Personal project · English
Read at your own pace
A personal reading tool I built with adjustable pacing, two reading modes and saved progress. An experiment in making reading on a phone more comfortable.
Try the readerPrototype · English
A self-reflection quiz
Explore your own personality tendencies through ten short questions. A personal software prototype built by Guven for self-reflection, with uncalibrated scores. It is not a validated personality assessment.
Try the quizStarter template
A template for starting projects
My stack-agnostic Cursor starter: scoped rules, skills, architect and verifier agents, docs and CI.
View on GitHubI’m open to permanent roles, interim assignments and short AI and cost reduction projects around Brussels, Leuven and Mechelen.