TransmutationIn progress...
Manifesto

Software development, our modern alchemy

Watch a developer at work and you'd think it was magic. Obscure symbols lined up, a few commands invoked, and suddenly a simple intention starts to react, respond and serve.

Beneath the apparent magic lies a discipline — rigorous, obsessive, driven by a single conviction: matter can be transcended. Inert characters become an experience. Cold logic ends up touching, moving, solving.

True transmutation doesn't come from sleight of hand, but from a deep mastery of the techniques and craft of software development. Whoever builds software is an alchemist without knowing it. From a vague need, they draw a coherent architecture. From a business intention, a living system. From a complex problem, an elegant solution. This year, alchemy comes to DevDay. The alembics have changed. So have the ingredients. But the discipline remains the same.

Manifesto

A decade of transmutations.

For more than ten years, DevDay has brought together those who transform. Developers, AI Builders, Executives — one community, one shared obsession: understand and master, to make a greater impact.

The tools change. So do the raw materials. Today, one of them is called artificial intelligence. What matters is what you make of it.

2013

First edition, 80 attendees

12th

edition in 2026

1000+

attendees

133+

International speakers since 2018
The organisers

DevDay is run by a collective of players from the Belgian tech scene.

Adrien Clerbois

Adrien Clerbois

Founder @ Sense of Tech

Christophe Peugnet

Christophe Peugnet

Founder @ Sodeasoft

Flora Dequenne

Flora Dequenne

Event manager @ DevDay

Frederic Carbonelle

Frederic Carbonelle

Project & Operation Manager @ sparkle.tech

Kevin Rapaille

Kevin Rapaille

Founder @ Witty Wolf

Matthieu Vandenhende

Matthieu Vandenhende

Founder @ Birdit

Renaud Dumont

Renaud Dumont

Founder @ sparkle.tech