Amentum, a general leader in advanced engineering, technical, and professional services serving the US government, allies, and critical infrastructure sectors, is seeking a HVAC / Refrigeration Mechanic to support a unique US Navy program on the island of Diego Garcia. The Heating, Ventilation, and Air Conditioning Foreman leads and participates in the installation, maintenance, modification, overhaul, service, and repair of air conditioning and refrigeration systems and equipment.

Job Responsibilities

(Typical duties include the following, although specific duties vary by assignment or contract.)
- Lead HVAC crew(s) and participate in the installation, maintenance, and repair of refrigeration and air conditioning systems to ensure that the work performed is in compliance with blueprints, manufacturer specifications, and written and/or verbal instructions
- Coordinate schedules to ensure proper distribution of work and adequate staffing
- Track, analyze, and report on progress, trends, and issues, and recommend solutions and improvements




- Implement preventive maintenance programs for air conditioning and refrigeration systems and equipment
- Train personnel on activities relating to air conditioning and refrigeration maintenance to ensure an acceptable work performance level
- Fabricate, assemble, and install ductwork and chassis parts, using portable metalworking tools and welding equipment
- Connect motors, compressors, temperature controls, humidity controls, and circulating ventilation fans to control panels and connect control panels to power source
- May install, repair, and service up to twenty (20)-ton air conditioners
- Perform other qualified duties as assigned
- Knowledge in principles of refrigeration, heating, and air handling
- Knowledge and skill in hand tools and diagnostic equipment used in maintenance and repair
- Ability to read and interpret documents such as schematics, safety rules, operating and maintenance instructions and procedures manual

📌 HVAC / Refrigeration Mechanic (Garcia)
🏢 Amentum
📍 Garcia