Setics
My day job since October 2023: fibre-network design software, in C# and .NET, of which I am today the only active developer.
Setics is a Toulouse software company selling fibre-network design tools to telecom operators in Europe and beyond. Since I joined, the development team has shrunk from around nine people to one. I became the de-facto technical owner of the portfolio: daily code review, architecture decisions, design discussions, and the coordination of a four-person external team on a mapping plugin integration.
The flagship product is over five hundred thousand lines of C#. I designed its optimisation pipeline — case-based reasoning and Delaunay triangulation — which took a critical interface operation from several minutes down to a few seconds.
Alongside it, several smaller products where I am the only developer or the delivery lead: a licensing tool rebuilt from scratch, a unified portal with its whole authentication chain, a multi-tenant platform for telecom expense management, and internal assistants built on language models.
This job gave me technical ownership far earlier than usual. It is where I learned architecture, review and customer-facing work — not in my personal projects.