Joanne Green has a Master’s Degree of Social Work from Hunter College School of Social Work and is a licensed social worker. She has held several leadership positions in social services. She was program director of an early intervention training program for individuals with developmental disabilities operated through Brooklyn Catholic Charities. For several years she served as Executive Director of Westchester Disabled on the Move, a resource and advocacy center for people with disabilities located in Yonkers, New York. She also served as a Program Development Specialist for the Bergen County Department of Human Services.

From 1995 to 2020 she served as the Executive Director of the Mental Health Association in Passaic County. The mission of the Mental Health Association in Passaic (MHAPC) is to serve children, adults and families affected by mental illness through support services, education, and advocacy. Green is a Certified Mental Health First Aid Instructor for Adults and for Youth. Ms. Green also served as the Co-Chairperson of the Professional Advisory Committee in Passaic County for several years. She has been involved with various community organizations such as the Clifton Rotary, Valley Toastmasters, City Green and currently serves on the Leonia Board of Health.