Pipefitter, Sr. assembles and repairs pipe systems of various shapes, sizes, and pressures. Ensures proper placement and alignment according to blueprints and instructions. Being a Pipefitter, Sr. requires a high school diploma or its equivalent. Typically reports to a supervisor or manager. To be a Pipefitter, Sr. typically requires 1-3 years of related experience. May be entry level if some experience in the skill. Gains or has attained full proficiency in a specific area of discipline. Works under moderate supervision.