In this role, you will specialize in activities relating to maintenance and improvement of building utility systems such as electrical wiring and control systems, heating, ventilation, and air conditioning (HVAC), water supply, carpentry, and related pipe systems. Expert technical knowledge of one or more of the following: electricity and national electrical codes, painting, carpentry, plumbing, heating, ventilation, and air conditioning (HVAC), refrigeration and/or sprinkler systems.