Senior Ammonia Refrigeration Technician — Field Service

Refrigeration-Systems-Construction-and-Service; Honolulu (HI); On-site; USD 28,000 - 96,000; Full time

Benefits offered by this job

Company truck and fuel card

Dependent coverage after one year

Dental, vision, and prescription opti­

401(k) with company match

Paid holidays, vacation, and PTO

Per diem when traveling

Job summary

Refrigeration Systems Construction and Service (RSCS) is hiring experienced ammonia refrigeration service technicians to diagnose and repair field installations across customers on site. You will walk into engine rooms, troubleshoot issues, and communicate findings clearly to customers and internal teams.

Our team values safety, reliability, and teamwork as we support a growing Western U.S. service footprint.

Qualifications

• Hands-on ammonia refrigeration systems required.
• Strong troubleshooting skills and safe work habits.
• Ability to work independently in the field while contributing to a professional team.
• Experience with compressors, controls, valves, motors, electrical troubleshooting, and system startups strongly preferred.
• RETA CARO/CIRO, OSHA, EPA Universal, welding, controls, or electrical experience are valued, but practical field skill matters most.
• Valid driver’s license and willingness to travel and participate in on-call service as needed.

Responsibilities

• Troubleshoot, service, repair, and maintain industrial ammonia refrigeration systems.
• Diagnose issues involving compressors, condensers, evaporators, pumps, valves, controls, VFDs, and related equipment.
• Perform emergency service, leak response, preventive maintenance, system evaluations, and startup support.
• Read and work from P&IDs, electrical schematics, and control drawings.
• Communicate findings, repair needs, and recommendations clearly to customers and internal teams.
• Complete accurate field documentation and follow strong safety practices on every job.
• Help customers reduce downtime, improve reliability, and keep refrigeration systems operating as they should.

Skills

Ammonia refrigeration systems

Troubleshooting

Field independence

Compressors

Controls

Electrical troubleshooting

Safety adherence

Travel / on-call readiness

Education

RETA CARO/CIRO

OSHA

EPA Universal

Welding experience

Tools

Electrical/equipment knowledge

Job description

Refrigeration Systems Construction and Service (RSCS) is hiring experienced ammonia refrigeration service technicians to diagnose and repair field installations across customers on site. You will walk into engine rooms, troubleshoot issues, and communicate findings clearly to customers and internal teams.

Our team values safety, reliability, and teamwork as we support a growing Western U.S. service footprint.