Directly oversee foremen and, through them, a large self-perform structural crew installing structural steel, ironwork, metal deck, framing, elevated slabs, flooring systems, roofing, and the general structure of the building, including crane and rigging work that raises the structure and welding of steel structure. Scope includes, but not limited to structural steel, ironwork, metal deck, framing, elevated slabs, flooring systems, roofing, carpentry, and general construction of the building itself: the metal skeleton, the floors, the roof, and the data halls.