Seiu Local 509 The Massachusetts Human Service Workers Union Careers in Watertown, MA

SEIU Local 509 represents over 17,000 Human Service workers throughout Massachusetts -- providing a variety of social services to elders, at-risk children, and people with mental illness and developmental disabilities. Local 509 is part of the 2.2 million member Service Employees International Union, the largest and fastest-growing labor union in the United States.