Description

Co-fondateur & CTO du Wagon pendant 11 ans, ce coding bootcamp bootstrapé en 2014 à Paris et opérant maintenant sur tous les continents. J'ai contribué à former plus de 25,000 alumni au développement web fullstack (Rails / JS) ainsi qu'à la Data Science (Python, Machine Learning, etc.). Avant ce long chapitre entreprenarial, j'ai occupé des postes "Individual Contributor" de développeur logiciel chez Google, VirtuOz et Eventmaker, ainsi qu'en freelance.

Je suis autodidacte en programmation depuis la fin des années 90' et ait une formation d'ingénieur par un double diplôme Polytechnique / Telecom Paristech (2004-2008).

Depuis 2025, j'apporte mon expertise technique & produit, mon experience entreprenariale et mon expérience managériale d'équipe distribuée à des entreprises en croissance.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 10km), Marseille (up to 50km)

Refrag
Ruby on Rails Expert
VIDEO GAMES AND ANIMATION
March 2026 - Today (4 months)
Refrag is a multi-platform SaaS company developing the worlds largest and comprehensive Counter-Strike training solution. I joined the Engineering team to bring my Ruby on Rails expertise to improve and enhance the Refrag back-end application.
Ruby on Rails
Le Wagon
Co-Founder & CTO
EDUCATION AND E-LEARNING
January 2014 - January 2025 (11 years)
Paris, France
Developing the curriculi and Teaching at our Web Development & Data Science bootcamps. Led the
Engineering team (up to 20 people) using the Shape Up methodology, building the Pedagogical and
Operational platform Kitt supporting every aspect of the business. Ruby, JavaScript, Python
Ruby on Rails
Eventmaker (Acquired by InfoPro Digital)
Senior Software Engineer
January 2012 - January 2014 (2 years)
Paris, France
Full-stack lead developer on MobiCheckin, a SaaS product for event organisers. Integration of Mandrill,
Mailchimp, Highrise, Esendex and Xing Events APIs. Ruby (Rails), JavaScript
Ruby on Rails

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Master 2 - Ingénérie logicielle & réseau
Telecom ParisTech
2009
Ingénieur de l'École Polytechnique
École Polytechnique
2008

Sébastien Saunier

Développeur Fullstack - Expert Ruby on Rails

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