Hello,
I’m a software developer / co-owner of a company working on Tryton. I’ve been working professionally with Free Software for more than 20 years now.
My first contribution was to FreeCiv 
and I’ve contributed patches to miscellaneous libraries / tools. So all in all, I guess I’m just a random free software developer.
I was first led to free software because it allowed me to use the same software on my computer as the ones from the university. I soon realized there was more to free software than that. It’s a way to share knowledge but it’s also an important economic tool.
I appreciate that it allows to “seize the means of production”. Thus it provides freedom not only to its users but also to its practitioners. And my current company is built on that, we’ve forked a software that was not going in the right direction according to us and we took a shoot at building something else.