Responsibilities include copper brazing, soldering, threading, and assembling PVC/CPVC/Steel pipes, as well as overseeing the installation of valves, supports, flanges, and other key components in piping systems. To be successful you should have a minimum of 4 - 5 years of experience in commercial and industrial plumbing, a valid journeyman's license, and comprehensive knowledge of plumbing codes, backflow devices, and blueprint interpretation.