Javier Marin — Co-Founder
LLMs hallucinations aren't random. They have geometric structure. I spent eighteen months studying how language models drift from source material. What I found: when a model hallucinates, its response stays angularly close to the question without traveling toward the evidence. I call this "semantic laziness" - and it's detectable without using another LLM. The Semantic Grounding Index measures this drift. Across five embedding architectures, the signal holds with r=0.85 correlation. It's not an artifact of any particular model. It's a property of the text itself. I built CERT to make this measurable for production systems. Because "run it through another LLM" isn't going to satisfy Article 15 of the EU AI Act. And because the current approach - using AI to evaluate AI - is fundamentally broken. Before CERT: 25 years moving technology from vision to operations. Led 15,000-person workforce data based transformation. Built ML systems from concept to production for venture-backed companies. Published research on AI safety before regulation required it.
Stackforce AI infers this person is a leader in Enterprise AI and Organizational Transformation.
Location: Madrid, Spain
Experience: 29 yrs 3 mos
Skills
- Ai Implementation & Deployment
- Organizational Transformation
- Ai Governance & Compliance (eu Ai Act)
- Marketing Strategy
- Business Development
Career Highlights
- Pioneered geometric hallucination detection in AI.
- Led a 15,000-person workforce transformation.
- Advised on AI governance before regulations.
Work Experience
Cert Framework
Founder (5 mos)
Independent Consultant
AI Implementation Strategist (1 yr 11 mos)
NextBrain AI
Chief Data Scientist & Portfolio Advisor (2 yrs 11 mos)
Universidad Europea
Associate Professor Data Analytics (1 yr)
Divi Med Clinics (Brand: DILAVÍ)
Founder (3 yrs)
Independent
Independent Data Analytics Consultant (6 yrs 5 mos)
Traspal GmbH
Country Lead (2 yrs)
Coram
Country Managing Director (2 yrs)
Chief Sales and Operations Officer (6 yrs)
Universitat de Barcelona
Invited Researcher - Social Psychology Lab (2 yrs)
Endress+Hauser
Chief Marketing Officer / Business Development Manager (5 yrs)
Product Manager (4 yrs 11 mos)
Education
Executive Education at Massachusetts Institute of Technology
Bachelor's degree Chemical Engineering at Universitat Politècnica de Catalunya
Master's degree at Universidad Internacional de La Rioja
Diploma of Advanced Studies in Social Psychology at Universitat de Barcelona
Executive Master in Marketing Management at Esade
Executive Education at Harvard Business School Executive Education