As a member of the Development team, Tierney supports EFF's organizational membership program, institutional sponsorships, and grant writing and reporting.

Tierney's background is in art and technology, with past practice, research, and writing on interactivity, expanded cinema, information art, and culture jamming. She believes technology is our most potent means of self-expression in the 21st century, and incorporates this passion into raising critical funds for EFF. Previously, Tierney worked in Northern and Southern California museums and arts nonprofits supporting exhibitions, development, and cultural planning.