R.D. Ruffin has joined Ring & DuChateau’s Plumbing Group as a project manager. Ruffin, who holds a bachelor’s degree in Architectural Engineering from Milwaukee School of Engineering as well as a professional engineer license in Wisconsin, brings more than two decades of experience to Ring & Du’s team. His most recent position was with a manufacturer’s representative. Prior to that, he was director of mechanical engineering with Hammel, Green and Abrahamson, Inc. (HGA) for nearly 20 years. His work experience includes department leadership as well as project management and plumbing systems engineering for projects ranging from small remodels to large replacement healthcare facilities. Beyond providing engineering support for projects across markets, R.D. will focus on project management support for Froedtert Health projects.