Apr 2008 – Jan 2012
Software engineer
Sopra Steria
Michaël Antoine / The solo builder’s workshop
Explore.
Understand.
Build.
When an idea sparks my curiosity, I build it. Development, AI and exploration: welcome to my solo builder workshop.
The digital workshop
Three ideas.
A world to explore.
Choose a project to explore. Three ways to turn an idea into a useful tool.
From idea to product: the joy of building something useful.
Grounded in experience
The bigger picture.
Hands on the code.
From understanding requirements to testing and deployment, I connect business needs with technical decisions.
Architecture & consulting
Clarify requirements, design a coherent architecture and choose foundations that stand the test of time.
- Hexagonal architecture
- Clean Architecture
- DDD
Full-stack development
Connect a carefully designed interface to a solid backend. Build and test web applications and APIs.
- Symfony & PHP
- React
- API Platform
Design & experience
Design intuitive, accessible interfaces across screen sizes, with a constant focus on performance.
- Web design
- HTML / CSS
- Responsive
Teams & projects
Help teams move forward through open communication, respect for people and clear direction.
- Agile methods
- Project management
- Jira
My toolbox
Develop PHP, Symfony, React, AngularJS, API Platform, Mercure, HTML and CSS.
Ensure quality TDD, PHPUnit, Behat, PHPStan, PHPCS, standards PSR, SOLID, DRY and KISS.
Deliver Docker, GitLab CI/CD, GitHub, GitLab, PhpStorm and Jira.
Experience & collaborations
Two paths.
One drive to build.
Senior developer at GoldBroker since December 2024, freelance consultant and solo builder. Three roles that shape the way I build.
Employed & freelance
Building with and for others.
My professional experience
Jan 2012 – Oct 2014
Project manager & architect
LINAGORA
Oct 2014 – Sep 2019
Head of IT
Up’n BIZ · Webportage
A significant experience, now presented under the Karburan.pro reference.Sep 2019 – Oct 2020
Project director & architect
ACSEO
Since Apr 2020
Freelance consultant & web developer
Freelance
From scoping to development. Current freelance assignment: Healthy Keys.Since Dec 2024 · alongside freelance work
Senior developer
GoldBroker
Alongside my freelance work.Solo builder
Bringing my own ideas to life.
My own space to explore
From idea to product.
Imagine a use case, design the interface, develop and improve the product. Building solo, I explore every part of the project.
Explore my products ↗Late 2025 – Present
The paths meet.
The way I build evolves.
As I build SaaS products and bring AI into my development process, my two paths increasingly inform each other. Professional experience supports my products; solo experimentation opens up new ways to build.
I continue my work as a senior developer at GoldBroker alongside my personal projects.
Projects and collaborations
Collaborations that matter.
A defining experience
Karburan.pro · Up’n BIZ / Webportage
My work at Up’n BIZ on Webportage was a significant part of my employed career. I now present this experience under the Karburan.pro reference.
Discover Karburan.pro ↗As a freelancer
Ascalium and Twinin were among my first major clients. More collaborations followed.
Ascalium
A major redesign, among my first substantial freelance projects.
Twinin · All-in-One
A major collaboration from the early days of my freelance career.
Discover Twinin ↗Healthy Keys
Healthy Keys
Current freelance assignment: consulting and development for Healthy Keys.
Jozz Formation
A client from my freelance journey.
During my employed career
Client assignments carried out while employed by Sopra Steria and LINAGORA.
Alstom Transport · DCNS · Airbus / Eurocopter · La Poste
View these references
Alstom Transport
Rail transport
DCNS
DCNS
Shipbuilding
Airbus · Eurocopter
Aerospace
La Poste
Postal services
More references from my journey
And also
Défenseur des droits · Office de Tourisme, des Loisirs et des Congrès de Marseille · Evo’Portail · Clic Formalités · McDonald’s France Services · Escota
Beyond the code
Change perspective.
Stay curious.
A sky to observe, a landscape to frame, a model to assemble. Different ways to look at things and take time over the details.
Astronomy and photography: taking the time to observe.
An idea, a question, a perspective
What shall we
build next?
A web project, an AI experiment or simply a conversation. It starts here.
Book a conversation