HVAC Technician

Pae.wd1.amentum Careers

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OCONUS-South Korea-Pyeongtaek Until 8/21/2026 H-1B sponsor history First posted November 11, 2025 Last posted January 9, 2026
Job description

Amentum is seeking a Journeyman/Junior level HVAC Technician to support the military facility in Pyeongtaek, South Korea. He/she will perform the full range of work involved in the repair, overhaul, maintenance, and servicing of heating, ventilation and air conditioning units and systems. 

 

Duties and Responsibilities:

  • Work with a wide variety of commercial and industrial systems to include those which require that the employee troubleshoots, installs, repairs, and modifies special purpose air conditioning, refrigeration, or climate regulations systems used to provide specific, critical conditions. 
  • Using the Reliability Centered Maintenance Methodology, performs preventative maintenance services, repairs, modifies, and alters unusually complex or unique air conditioning and refrigeration systems in order to maintain full system(s) designed operational capabilities and maintain specific pressure, temperature, and climate characteristics.
  • Works with engineering or scientific personnel to discuss plans, modifications, and user needs. Reviews available plans, specifications, or drawing; determines the size, shape, and location of equipment; plans and installs installations to meet conditions of experiments or tests. 
  • Troubleshoots and repairs equipment such as that above for which specifications and technical manuals do not exist or have large gaps. 
  • Tests installed, modified, or repaired systems to ensure that critical specifications and equipment performance requirements are met. 
  • Will act as the lead HVAC-R Technician on their assigned shift; Trains inexperienced personnel by giving on-the-job instructions and assistance. 
  • Other duties as assigned; the successful candidate will be working as part of a small multi-functional trade team and will be required to assist other tradesmen if/as needed to accomplish contract required work. 

 

Requirements

  • Minimum 5 years’ experience supporting large buildings, preferably in an overseas environment. 
  • Must have a Journeyman's License as issued by one of the U.S. States or have a minimum of 5 years’ relevant experience with complex HVAC-R systems
  • Must have relevant, or closely related experience, with large water chiller systems, cooling towers, CBRNE filter systems, smoke evacuation systems, CO2 scrubbing systems, automated intake louvers and screens, Direct Digital Control (DDC) systems, and calibrating Building automation sensors.
  • May be required to prepare instructional material and conduct instruction of operators. 
  • Possess good verbal and instructional skills, employee will be assigned an apprentice and will be required to mentor/train personnel in accordance with training program.
  • Able to multi-task and work in a fast paced, dynamic environment; and establish rapport with all levels of the organization.
  • Work well as part of a team and independently and can handle issues with tact and diplomacy.
  • Must have a Secret or TS/SCI clearance at time of application.
About this role

Summary

Support and maintain complex HVAC systems, troubleshoot, repair, and mentor team members in South Korea.

Job title

HVAC Technician

Experience level

5+ years

Industry

defense

Location requirements

On-site in South Korea, no remote work allowed

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

No

Skills & keywords

Required skills

HVACrefrigerationbuilding automationchillerscooling towersDDC systemscalibrating sensors

Preferred skills

None specified

Specializations

HVACrefrigerationbuilding automationchillerscooling towers
Locations

Structured locations inferred from the posting.

Unknown location

On-site