A Non Union Rig Welder is a skilled tradesperson who specializes in welding on rigs, such as oil rigs, pipelines, or construction sites, without being affiliated with a labor union. They typically own their own welding rig, which includes a truck and necessary equipment, and work as independent contractors or for non-union companies. These welders are responsible for joining and repairing metal structures, often in demanding environments. Since they are not part of a union, they negotiate their own pay, benefits, and working conditions. This role requires strong welding skills, certifications, and experience with different metals and welding techniques.