A pipeline welder, also known as a pipe welder, uses specialized flame torches to join pieces of metal to assemble and repair pipes. You can find jobs as a pipeline welder on oil rigs, at refineries, for utility companies, and in the construction and manufacturing industries. As a pipeline welder, your job duties include using shielded metal arc and gas tungsten arc welding equipment and methods to assemble, join, weld, and repair pipes and pipelines. Your responsibilities are to use safety equipment, determine the tools needed for a particular task, and complete the task in a safe and efficient manner.