Sébastien tries hard to get a small white ball into a hole. He doesn't always succeed, but he never gives up.

With a Ph.D. in physics and having worked as a research engineer at the CNRS for over 10 years, Sébastien Decossas left the field of fundamental numerical simulation to apply scientific rigor to the development of complex web ecosystems.

He designs and maintains the digital infrastructure for the agency and its clients: web architecture, security, performance,
eco-design. His belief: a website isn’t just a decorative item; it’s a system that must last five years, handle post-trade-show traffic spikes, and meet the BITD’s confidentiality requirements.

A methodical approach. Clean code. Scientific patience.