Perhaps you followed an out-of-date link? Please check out the jobs we have currently available.About SEIU Local 668 SEIU Local 668 represents over 20,000 public services workers across Pennsylvania and is part of the Service Employees International Union (SEIU), the nation’s fastest growing labor organization with more than 2.1 million members nationwide. SEIU is on the cutting edge of progressive activism, building the power of workers, and engaging in community and social issues. Our membership is comprised of over 9,000 state workers and over 9,000 local unit workers (county workers, 911, juvenile detention, children and youth, mental health/mental retardation, clerical, prisons, etc.).