Mari is a journalist and researcher who has been working in the field of technology, politics, and social justice since 2004, when she was involved in the Free Culture and Free Software movements. Since then, her professional activities have spanned the public and private sectors, as well as various civil society organizations, always bringing a critical perspective to the use of mainstream technologies and applying her geek knowledge and hands-on approach to test alternative tools.

With extensive management experience, she has worked for NGOs such as Artigo 19 Brasil, Rosa Luxemburg Foundation, and even Coding Rights itself. She has coordinated the strategic planning and communication of various electoral campaigns throughout Brazil, always focusing on the participation of women, Black people, and Indigenous people in institutional politics, the defense of LGBTQIAP+ rights, and the pursuit of privacy and security, both digital and overall, for these vulnerable groups in their struggle for participation and representation.

In the private sector, she was Director of Partnerships at Mapeo, an Artificial Intelligence and Data Analysis startup for political projects, and as a Program Manager for technology education at the Cisco Networking Academy in Brazil. As a journalist, she has worked for Folha de S. Paulo and Reuters News Agency, and has contributed to media outlets such as Jornal Brasil de Fato, Revista A Rede, Carta Capital, and Agência Frei Tito para América Latina.