Monitor and maintain building automation systems, refrigerant compressors, air compressors, electrical motors, fuel oil systems, steam and condensate systems, HVAC systems, gas distribution systems, sanitary sewer systems, electrical power distribution systems, and related auxiliary equipment. To meet customer requirements and comply with local or state regulations, applicants for certain customer-facing roles may need to: - Undergo additional background screens and/or drug/alcohol testing for customer credentialing.