HVAC Master Technician – US Navy Program

About the role

We are seeking an experienced HVAC Master Technician to join Amentum’s US Navy program on Diego Garcia. The role involves maintaining and repairing large‑scale chilled water and direct‑expansion air‑conditioning plants to ensure reliable operation in a remote, austere environment.

Key responsibilities

• Perform maintenance and repair on chilled water and DX centralized air‑conditioning plant equipment with capacities of 100 tons or greater.
• Support Variable Air Volume (VAV) and constant‑volume air distribution systems.
• Conduct inspections, fault diagnosis, testing, and preventive maintenance of HVAC systems.
• Troubleshoot and implement repairs in compliance with safety and regulatory standards.
• Assist in planning and scheduling maintenance activities and document all work performed.
• Provide technical guidance and supervision to team members.
• Ensure compliance with environmental safety regulations and proper refrigerant handling.

Required profile

• Valid U.S. HVAC Master License.
• At least five years of experience with chilled water and DX‑type centralized air‑conditioning plant equipment supporting VAV or constant‑volume systems of 100 tons or more.
• Completion of the Refrigeration and Air‑conditioning Servicing National Certification Level III (RAC NC III) or equivalent.
• High school diploma or equivalent.
• Valid passport (minimum one‑year validity) and ability to pass contract medical requirements.

Required skills

• HVAC Master License
• Chilled water system maintenance
• DX air‑conditioning plant repair
• VAV and constant‑volume air distribution expertise
• Refrigerant handling and environmental compliance
• RAC NC III certification