Sébastien Bouillé, Reliable AI Systems Architect | FR · EN · ES

Description

You want to use AI — but you're afraid of hallucinations,

of ruining your system or your credibility.

You're right to be.

I build AI systems that don't drift. The reliability is

in the architecture, not in the prompt: the AI works within

constraints I design, and every output is validated before

it reaches the user.

What I implement:

- Constrained inputs — RAG, JSON or Markdown rule systems

- Constrained outputs — validation scripts that check every

answer before delivery

- Fallback logic and guardrails for edge cases

- Self-maintaining systems that flag inconsistencies when

your code or content changes

If you need to keep the AI's creativity, I help you add the

right guardrails to get as close as possible to zero

hallucination — with human-in-the-loop where it matters.

I've built three AI systems from the ground up:

- Plumeum — a LinkedIn ghostwriting app with self-improving

rules

- Lunema — an adaptive meditation app, zero hallucinations

in production

- Mon Histoire Magique — multilingual generative stories

for children

Before AI: ten years as an international journalist (trained

to make complex things clear and defensible) and seven years

in technical support for a major US tech company.

If you want AI that works reliably — not just in the demo,

but in production — let's talk.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent
Spanish
Fluent

Workplace preferences

Can work on-site

Barcelona (up to 30km)

Independant
Reliable AI Systems Architect | FR · EN · ES
DIGITAL AND IT
August 2024 - Today (2 years)
Barcelona, Spain
AI systems that use the right data and deliver constrained, reliable outputs. systems I design are self-maintaining and self-updating: part of the code or content changes, they flag the inconsistency instead of failing silently. AI's implement guardrails hallucination — with human-in-the-loop
US tech company (confidential)
Technical Support Advisor (T2)
DIGITAL AND IT
January 2017 - January 2024 (7 years)
Barcelona, Spain
Smart home, connected hardware, and voice assistant products (client confidentiality). Frontline diagnosis at international scale; contributor to documentation and faster-resolution workflows.
Training
Independant
International field journalist
FILM AND AV
January 2008 - January 2017 (9 years)
Doha, Qatar
Ten years of TV field reporting for French and international broadcasters (M6, TF1 , France 2, Al Jazeera, France 24, Arte, RTS). Trained to translate complex situations into clear, defensible output under pressure. Author of two published novels.

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DUT Services et réseaux de Communication
Université de Dijon
2004
Programming, Network, Computer graphics

Supervised Machine Learning — DeepLearning.AI
Stanford University
2025
Elements of AI
University of Helsinki
2024

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