Since arriving in Boston from Haiti in 2004, Mascary has dedicated his career to building equitable pathways for creative workers, expanding community-centered cultural opportunities, and fostering environments that recognize and celebrate Boston’s diverse communities. He has contributed to mission-driven organizations including the West End House Boys & Girls Club, Cambridge Youth Programs, Cambridge Public Library, and Now + There (now the Boston Public Art Triennial) before joining the Mayor's Office of Arts and Culture. His interdisciplinary background as a cultural producer, mentor, and creative practitioner informs his public-sector approach rooted in collaboration, access, and long-term sector vitality.