required Licenses and Certifications Engineer 2nd Grade - ENG 2NDG Maryland State 1st or 2nd Class Stationary Engineer License required and CFC Refrigeration Certification Universal CFC certification required and Additional certification in one or more of the following: electrical mechanical HVAC and refrigeration systems process controls mechanical power transmissions painting plumbing carpentry or engine repair. Inspects building systems including fire alarms HVAC and plumbing to ensure operation of equipment is within design capabilities and achieves environmental conditions prescribed by client.