Masterclass by les-tilleuls.coop

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About us

Symfony, JavaScript and E-commerce experts, we are convinced to succeed by managing differently.

A wide range of services


Les-Tilleuls.coop is a self-managed company based in Lille, Paris and Nantes (France) with a strong expertise in Symfony, API Platform and JavaScript applied to e-commerce and innovative web applications. Our projects are always developed in line with the state of the art, following industry’s best practices.

Democracy and self-management


Les-Tilleuls.coop is at the cutting edge of technological, social and economical innovation. Les-Tilleuls.coop is a tech worker-owned cooperative. All decision-making is voted on by employees and all profits made are distributed fairly among all of us at the end of each year.

A publicly recognized expertise


We are active contributors to the Symfony framework and we count in our team 2 core team members who maintain several of its components! We are also API Platform's creators, an open-source solution built on Symfony that simplifies the execution of API-first projects.

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Our trainers

Our team of trainers is composed of developers, consultants and contributors to free software. They work daily on large-scale projects and are publicly recognized for their expertise, through their publications or conferences.

Kevin Dunglas

Kevin Dunglas


Kévin is the founder of Les-Tilleuls.coop. He’s a member of Symfony’s core-team and the creator of the API Platform framework. He’s a contributor to over a hundred Open Source projects, and is also a conference speaker, an article and technical book writer as well as a lecturer at Lille 1 University.

Vincent Chalamon

Vincent Chalamon


Vincent is a software architect, coach and Symfony trainer. He’s a member of API Platform’s core-team and regularly speaks at conferences.

Grégory Copin

Grégory Copin


Grégory is an ng2-material maintainer with over 14 years of experience in front-end development, CMS and e-commerce solutions. He is also a conference speaker and TYPO3 debate facilitator.

Grégoire Hébert

Grégoire Hébert


Grégoire is a Symfony specialist who likes to share his expertise in qualitative projects implementation thanks to 10 years of experience in development, consulting, and team management.

Robin Chalas

Robin Chalas


Member of the Symfony Core Team, Robin is one of the main contributors of the Symfony code and ecosystem. Specialized in HTTP APIs, CLI applications and Cyber Security, he loves designing clean code and scalable data structures by making the most of the Open Source projects he is involved in.