Tashy was the Training Coordinator for the European Community Organizing Network (ECON). She has 18 years of experience in community organizing: She learned transformative organizing from the bottom up with the Movement of Unemployed and Landless Workers in Buenos Aires and from the Platform of People Affected by Mortgages (PAH) from Barcelona.

Tashy was part of Occupy Wall Street in New York City and of the Decolonizing Architecture in Bethlehem. On her return to Berlin, she became part of the core organizing team with the tenants initiative Kotti & Co. For five years. Since 2018, she has been part of the successful referendum to expropriate large profit-oriented housing companies in Berlin, Deutsche Wohnen & Co Enteignen (DWE) where she co-founded the Jumpstart Working Group (AG Starthilfe) which brings transformative community organizing into the referendum effort.

Tashy has been an educator and trainer for 10 years offering trainings on transformative community organizing, strategy development, social justice and critical diversity, non-violent communication and conflict transformation, traumasensitive mindfulness as well as regenerative organizing. She accompanies social movement groups with strategy-coachings and facilitation.

She has a background in architecture and political science and worked as a researcher and teacher at the University of the Arts Berlin for 5 years with a focus on intersectional anti-discrimination education for architects.