Broad understanding of plumbing systems including domestic water, sanitary waste and vent, storm drainage, natural gas, medical gas, plumbing fixtures, water heating systems, pumps, backflow prevention systems, and site utility piping. Job Summary: Responsible for preparing and/or coordinating the preparation of complete plumbing and piping estimates on large and small commercial, institutional, healthcare, industrial, and public works projects as required by the client's plans, specifications, and contract documents.