Ability to stand, walk, bend, kneel, climb ladders, work from elevated platforms, use HVAC tools and diagnostic equipment, lift/carry required materials, and work indoors and outdoors in active industrial and aerospace environments while wearing required PPE. The Technician IV provides technical guidance and mentorship to HVAC Technicians I-III, leads complex troubleshooting and root cause corrective actions, and supports maintenance, reliability, projects, commissioning, and contractor oversight.