Free software product
LibreSign
I maintain and help lead a free and open-source electronic signature platform recognized as a Digital Public Good.
Vitor Mattos
Software engineer and open-source maintainer.
CTO at LibreCode · LibreSign maintainer · free software community builder
More than two decades working with web technologies, technical leadership, privacy, and sustainable open-source communities.
Projects and public work
Projects, leadership, and public work with links to the work itself.
Technical leadership
LibreCode
As CTO and worker-owner of a technology cooperative, I work across architecture, infrastructure, products, engineering practice, and the sustainability of free software.
Community and public work
Knowledge in public
I organize technical communities, speak about software engineering and digital autonomy, and publish material that makes technical work easier to understand, share, and reuse.
Speaking
Recent talks
Writing & research
Recent articles
The communion of saints in the face of digital ethics dilemmas
A biblical approach to managing sensitive data in the church. Theology bachelor's monograph submitted to Seminário Teológico Presbiteriano Rev. Ashbel Green Simonton in 2025.