A flux core welder has expertise in using flux core welding tools and techniques. You can use this technique for welding pipes, manufacturing equipment and tools, or repairing broken equipment. Your responsibilities as a flux core welder are to read blueprints that tell you how to layout, assemble, and weld various components of pipes or equipment. You must understand proper safety techniques for using your welding equipment and inspect your finished products. Your duties may also include maintaining and repairing welding equipment, training apprentice welders on the skills they need for the job, and cleaning and preparing your work area and surfaces.