Job description of a welder

Material handling (transporting metal around shop)

Material Prep (cutting, cleaning off rust/grease etc)

Weldment prep (setting up metal to weld, includes squaring up frames, clamping materials to table so they don't move while being welded, etc)

Welding

Finishing (depending on the type of welding, grinding weld flush, chipping slag/spatter off, sending part out for paint/machining