Structured welder career ladder - a written, three-level advancement path (Welder I - II - III) with defined objectives, on-the-job training, mentoring from designated Welding Leaders, and pay progression tied to skills and certifications you earn here. Perform MIG (GMAW), TIG (GTAW), and/or flux-core (FCAW) welding on carbon steel, stainless steel, and/or other alloy components per blueprints, weld symbols, and work orders.