Jérôme CREMOUX
Self-taught, for the love of it.
From a repair counter to spacecraft.
I'm Jérôme CREMOUX, 44, a French software developer. Unlike many in this industry, I hold no degree: no engineering school, no university. I fell in love with code as a kid, and I simply never stopped. Everything I know comes from open source, from personal projects, and from years of learning by building, breaking things, and reading other people's code.
Nothing about my path was a straight line. I spent five years behind the service desk of a store, fixing customers' computers, coding at night for the love of it, until a short vocational retraining let me finally make it my job. Then six years in a small software house, growing from developer to lead developer across mobile, web and backend; a spell as a consultant; and today I work as a technical lead on 3D data visualization for the space industry. From a repair counter to spacecraft, the self-taught way: passion did the heavy lifting.
I love creating. What drives me is curiosity, and it refuses to stay in one lane. I care about UX and graphic design as much as I care about code; I model in 3D; I love software architecture and things being clean, square, done right. Above all, I can't let go of a problem until I've answered the two questions that matter: why, and how.
Open source raised me as a developer, so working for it now feels like giving back. But it's more than gratitude: I believe the open commons is the last independent space we have left, the only real counterweight to a handful of giant platforms deciding what our digital lives look like. I want my work to strengthen that space, not feed the other one.
That's what Helios and Helios Forecast are to me: my contribution. Free tools, built in the open, that help people see and understand their energy. Technology at its best doesn't capture people, it empowers them, and if I can spend the rest of my career on that side of the fence, trying to leave the world a little better than I found it, I'll consider it time well spent.
Helios is free. A coffee keeps it going.
Helios and Helios Forecast are free and open source, built on my own evenings. If they help you, a coffee is the nicest way to say thanks, and it genuinely keeps me building. You can also follow along elsewhere.