About - Collaboration is our strength
A collaborative approach where the client stays at the center of every technical decision.
GUIGUI Tech was founded by Nathan Guigui, a fullstack developer with more than 10 years of experience and an Epitech Lyon graduate. Specializing early in React Native and React.js, Nathan built solid expertise in mobile app migration and Capacitor — from codebase refactoring and native plugins all the way to store releases.
Across projects (Synaps, Genius Station, Sagemcom, Boardigo…), we have built combined technical and regulatory expertise (ISO 27001, eIDAS, SCA payment standards) that lets us work in demanding sectors: fintech, trading, industry.
Today, GUIGUI Tech works as a flexible technical studio: Nathan as technical lead, backed by a network of specialized partner developers (PHP/Symfony backend, Vue.js frontend, Unity development) brought in as each project requires.
- Years of experience
- 10+
- Projects delivered
- 25+
- Satisfied clients
- 100%
Our culture - A technical team with solid values.
A close-knit team built around shared values — technical rigor above all.
- Excellence. We deliver careful, robust and maintainable technical work. No shortcuts, no debt left behind.
- Trust. We work with full transparency: visibility on progress, on risks, on technical decisions.
- Integrity. If a project is not the right fit, we say so. If a technical choice looks shaky to us, we challenge it.
Founder

Nathan Guigui
Founder / CEO
