This role independently addresses complex assignments, applies strong knowledge of ASME and NBIC requirements within assigned authority, mentors developing mechanics, and partners with project, service, quality, and customer teams to deliver safe, compliant, and reliable results. The Icon Boiler Mechanic Level 3 performs advanced boiler and pressure-vessel repair, installation, troubleshooting, welding, pipe fitting, refractory, burner, controls, feedwater, and steam-system work.