The Plumbing Designer III plays a key role in supporting the design and documentation of plumbing systems across a variety of project types. Working under the supervision of the project’s Engineer-of-Record, this role handles intermediate complexity tasks and contributes to the development of coordinated, constructible, and code-compliant designs. This position involves close collaboration with architects, engineers, designers, and external partners. Responsibilities include 3D modeling, field investigations, independent design work, red-to-black markup reviews, and the production of discipline-specific deliverables.