Nordine Marie
Paris, France
Co-founder and CTO of Qastel AI. We help companies stay in control of every AI they use, approved or not: find it, set the rules in plain language, and enforce them at runtime. Building in Paris, after four years shipping AI at Microsoft.
Co-founder & CTO · 2026
Qastel AI
Visit qastel.aiYour AI rules, enforced everywhere: across every model, agent and app.
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Qastel AI · How it works
Your AI rules
DemoBusiness teams write the rules. Qastel enforces them across every AI, and keeps the evidence.
What AI is in use across the company?
AI tools found3 unapproved
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Paris
Paris
Sunrise
Paris → New York → Cherbourg → Paris
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Paris · nowNew YorkCherbourgChangelog
My career, in semver
v5.1.0Oct 2026
Qastel AI goes public
Launched with our first customers on board.
v5.0.02026
Co-founded Qastel AI
Breaking: left big tech to build AI governance from Paris, as CTO.
v4.0.02022
Software engineer, Microsoft
Four years shipping AI features to production, intern to senior.
v1.0.02022
Engineering degree, Télécom SudParis
MSc in computer science, plus a summer at Amadeus in Nice.
v0.1.02020
First release
Freelance web developer: five client projects shipped.
Toolbox
Drag to spin
Let's talk
CISO, DPO or compliance lead wrestling with shadow AI? I'd like to hear about it.
Fighting shadow AI? I'd like to hear about it.
Side projects
GitHub