Michel Dion

Fractional CTO | From Semiotics to Agentic | AI & Data Architecture
Expertise
Architect
Availability date
Now
Keywords
architecture données intelligence artificielle big data
Regions
Montreal

Agentic AI didn't find me. I was already there — the technology simply caught up. My journey began with a screwdriver and a curiosity for the invisible. As a child, I took apart electronics — resistors, capacitors, transistors — to understand the logic of things. When the microcomputer revolution arrived, that obsession migrated to software. My first lines of code on a VIC-20 weren't just instructions. They were a new kind of language running inside a machine. That fascination led me to a Master's completed with academic distinction and doctoral studies in semiology. I wanted to understand how meaning is constructed. When I left the academy for the industry, one question followed me: how do we make machines understand language the way humans actually use it? Before it was called RAG, I was building it. At Yellow Pages, I was architecting ontology-based semantic engines and NLP pipelines when the industry was still scratching the surface. Today, agentic AI is simply the latest name for the same obsession. Language has just found more powerful machines to run on. Most AI projects are born in a demo room. They never leave it. To bridge that gap, I developed the Agentic Art™ : a 3-step, 7-pillar methodology for building AI systems that reason and act under your control, without technical debt, vendor lock-in, or governance left as an afterthought. What I deliver: ► Multi-agent architecture built for production ► AI governance: Law 25 / Bill 64, ISO 42001, guardrails by design ► Accelerated path from POC to enterprise deployment, without technical debt ► Fractional CTO leadership and data & agentic architecture mandates What I've built: ► CDPQ: secure analytics platform for 1,000+ users, Snowflake and Databricks for 20+ data science teams, ► GenAI governance for an institution managing hundreds of billions in assets ► Yellow Pages: 100x latency reduction (3s → 25ms) via a proprietary ontology-based semantic engine, within an engineering organization that grew from 6 to 65 during my tenure I work with: ► Tech scale-ups embedding agentic AI without a full-time CTO ► Large enterprises with data but no architecture to unlock its value ► Agencies needing a senior architect for complex mandates ► Any organization needing deep data & agentic architecture expertise: fractional CTO, senior advisor, or lead architect Bilingual FR/EN · Based in Montreal · Serving Canadian organizations, available remotely across North America

Specializations

Architect (30 years of experience)

Specialization: Application Architect, Enterprise Architect, Data Architect, Integration Architect, Technology Architect

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