HVAC & Refrigeration Mechanic (Foreman)

About the role

Amentum is seeking an experienced HVAC & Refrigeration Mechanic to lead a crew supporting a critical US Navy program on Diego Garcia. The role involves installing, maintaining, and repairing air‑conditioning and refrigeration systems in a remote, demanding environment.

Key responsibilities

• Lead HVAC crews in the installation, maintenance, and repair of refrigeration and air‑conditioning equipment.
• Coordinate schedules, staffing, and work distribution to meet project timelines.
• Implement and track preventive‑maintenance programs for all HVAC systems.
• Fabricate, assemble, and install ductwork and chassis components using metal‑working tools and welding equipment.
• Connect motors, compressors, temperature/humidity controls, and ventilation fans to control panels and power sources.
• Install, service, and troubleshoot up to 20‑ton air‑conditioning units.
• Train personnel on HVAC maintenance procedures and safety standards.

Required profile

• 1‑3 years of hands‑on experience in HVAC or related fields.
• High school diploma or equivalent; trade certification in heating and air‑conditioning preferred.
• EPA Section 608 Technician Certification (Type 1, 2, or 3) as required.
• Ability to read schematics, manuals, and safety documentation.
• Willingness to work in remote, potentially uncomfortable conditions and travel as needed.

Required skills

• Refrigeration and air‑conditioning system installation and repair
• Ductwork fabrication and metal‑working
• Use of diagnostic and hand tools
• Motor, compressor, and control panel wiring
• EPA Section 608 certification
• Trade certification in heating and air‑conditioning
• Freon recovery/recycling certification