Global Dimensions is seeking Master HVAC Technicians for upcoming opportunities at Fort Belvoir, VA and Springfield, VA. The role involves performing inspections on HVAC systems and components to evaluate condition, identify necessary repairs, and recommend or perform preventive maintenance. The technician will track performance of routine and preventative maintenance, troubleshoot HVAC/R systems, respond to service calls, and produce reports regarding malfunctioning equipment. The position requires installation, repair, and maintenance of large commercial and industrial HVAC systems, as well as working with engineering personnel to discuss plans and modifications. The technician will also perform design, modification, maintenance, and repair of critical environmental systems within Sensitive Compartmented Information Facilities (SCIFs). This role may involve periodic worldwide deployments and requires a TS/SCI Security Clearance.