Our Team

Harriet McCallum (she/her)

board of directors

Harriet McCallum has served as Mannifera’s Executive Officer since 2020. With over two decades of experience, she has led multi-disciplinary teams, fostered cross-sector collaborations, and driven forward advocacy projects across the public health, local government, philanthropy and NGO sectors in Australia and South East Asia. Harriet transitioned into the philanthropic sector out of recognition for the pivotal role philanthropy plays in supporting civil society and convening diverse collaborators for systemic change. Prior to joining Mannifera, Harriet led community resilience initiatives at the Lord Mayor’s Charitable Foundation, pioneering long-term, multi-sector efforts addressing health disparities worsened by climate change.

Earlier in her career, Harriet worked as a social worker and advocate with refugee and asylum seeker communities and victim/survivors of sexual assault and family violence, leading teams in Melbourne and Cambodia. She also managed local government youth, family and early years teams in Melbourne’s West. Harriet holds degrees in Arts and Social Work from the University of Melbourne.