François-Guillaume gave me advice on migrating a SaaS architecture to On Premise, drawing on all his experience

In just half a day, we found the simplest and most effective solution possible, with a roadmap of best practices to implement over time

I highly recommend him

Pierre COGNIN, Founder & CEO Techmood

François-Guillaume was extremely helpful in clarifying our SaaS strategy from both a technical and product standpoint

The audit gave us a clear and actionable assessment

François-Guillaume's expertise is inspiring, and his ability to simplify complex issues, understand the stakes, and his genuine care make his audits a truly enriching experience

Antoine Laborde, CTO Ogures Software

I especially recommend François-Guillaume's support for your tech projects, particularly in the SaaS space

He guided us on technical choices and also advised us on how to organize ourselves to deliver value efficiently and continuously

Xavier Di Domizio, Chief Software Officer Netwo

François-Guillaume is undoubtedly passionate

His skills and vision made him an ambassador of the IT department within the Sipa/Ouest-France group

Coming from a startup, he showed resilience in a legacy-heavy environment and brought Ouest-France into a new technological dimension

Guy SAUVAGE, CIO Ouest-France

François-Guillaume delivered insightful & highly valuable solutions at an incredible pace

He was a true enabler adopting multiple stances: observer, thinker, advocate, architect & manager

His propositions are always directly actionable & impactful

Ludovic Fleury, CEO Cloud-IAM

I had the pleasure of working with François-Guillaume during the audit at Guest Suite

He's a true professional with outstanding technical and interpersonal skills

His ability to absorb and process information is impressive

I recommend him 100%

Adrien Rousseau, CTO Guest Suite

François-Guillaume quickly understood and internalized our challenges

His advice and recommendations are relevant, unambiguous, and actionable

Fred Roumat, Founder Wanteeed

François-Guillaume supported us with exceptional professionalism in our architecture redesign project

His deep expertise, combined with excellent teaching skills, enabled him to deliver tailored solutions

After a day with François-Guillaume, you have clear solutions and vision, and on top of that, you feel a bit smarter

Bravo!

Maxime Duprez, CIO COMAP

François-Guillaume provided a comprehensive set of solutions while also adapting to new issues as they arose

His breadth of skills and mastery of end-to-end project architecture were particularly appreciated

Thanks to his contribution, the entire development team was able to level up

Emmanuel Philippot, R&D Project Manager Cognix Systems

I was fortunate to have François-Guillaume on my team for 18 months

His vision, leadership, dynamism, and energy went far beyond the expected scope

His urbanized vision of the digital platform was validated by Xebia's CTO

Fabien Grellier, Manager Ouest-France

With strong technical, organizational, and entrepreneurial skills, François-Guillaume quickly grasped our complex challenges and delivered a precise assessment along with invaluable recommendations

Ali Kenan, CTO TokTokDoc

One of the best API talks ever, both in substance (the doctrine, the fundamentals) and in form: direct, bold, and sustained

Bravo

Thierry Gaillet, Orange Dev. Director

Best talk of the entire #web2day #blowmymind

Guillaume Cisco, Medialibs

Francois-Guillaume Ribreau is one on the best JavaScript developer I have ever met

We hired him to rewrite from scratch one of our core component at iadvize and he did an exceptional job

Jonathan Gueron, CTO iAdvize

I warmly recommend François-Guillaume for his exceptional and inspiring teaching

His remarkable pedagogy makes complex concepts accessible to everyone

Beyond his technical skills, he cultivates critical thinking, collaboration, and creativity

Pierre Goupil, Full Stack Developer (EPSI)

Without exaggeration, I learned more concepts, skills, and best practices than in an entire year

He gave us the drive, the passion, and his unique perspective on this fantastic profession that is software engineering

Thank you

Andy Cinquin, Next.js Full-Stack Developer (EPSI)

At a time when I was starting to lose faith in IT, you reminded me that there is magic and always a universe of things to discover

Since that class, I have loads of new ideas and I've picked up several personal projects again

Bréval Le Floch, Full Stack Developer (EPSI)

Certainly the most professionally enriching instructor I've ever met

It's above all his vision of technology, pedagogy, and entrepreneurship that we benefited from the most

Baptiste Déporté, Project Manager Additi Media

François-Guillaume has both a very broad general IT knowledge and sharp expertise in new technologies

His theoretical knowledge is illustrated by his own field experience

Jin Lei, CTO Hermes Technologies

Following a half-day exchange about database performance issues, François-Guillaume's advice enabled us to quickly reduce response times across our services

Berger S., CTO Qivivo

He knows and recommends the right tools for every situation, and is able to structure things in a simple and effective way

A real pleasure to work with

Rémi Castel, Software Engineer Hublot

Passionate and captivating

François-Guillaume knows how to share his knowledge and inspire people to go further

Romain Dufils, Full Stack Developer Wiseband

A truly inspiring lecturer

His passion for tech and entrepreneurship is contagious

He pushes his students to think big and take action

Jordan Servant, Student EPSI

He's one of those passionate, long-bearded people who share their knowledge with boundless energy

A class with François-Guillaume is always a memorable experience

Florian Elie, C# .NET Developer (EPSI)

Excellent architect

François-Guillaume has a rare ability to see the system as a whole and propose pragmatic, tailored solutions

Adrien Martineau, Software Engineer Lead Capgemini

Fascinating classes

François-Guillaume generously shares his field experience and pushes everyone to give their best

Antoine Burgaudeau, Independent Developer

Flawless technical expertise paired with product and business vision

François-Guillaume is a rare profile who perfectly bridges both worlds

Lucas Blin, Fullstack Engineer Keyzia

His ability to push us, to push our knowledge ever further, is remarkable

You come out of his classes with a transformed view of the profession

Théo Levalet, Lead Dev (EPSI)

A passionate and pedagogical lecturer

François-Guillaume makes complex topics accessible while maintaining a high level of standards

Maxime Henry, Project Manager FICHORGA

François-Guillaume knows how to make a class dynamic and captivating

His energy and passion for web development are contagious

Olivia Bruce, Front End Developer The Fork

An exceptional internship supervisor and mentor

François-Guillaume taught me far more than code: a true philosophy of development and entrepreneurship

Alexandre Remaud, Intern Redsmin

François-Guillaume shares his passion for JavaScript with rare authenticity

His classes are a concentrate of field experience and best practices

Baptiste Pignol, Engineer Ars Nova Systems