Senior Ammonia Refrigeration Technician

dfa; Massachusetts; On-site; USD 65,000 - 110,000; Full time

Job summary

dfa in Massachusetts seeks a Master Ammonia Refrigeration Technician to oversee the ammonia refrigeration system, perform installation and repairs, and ensure safe, efficient operation across the facility.

The role requires advanced knowledge of ammonia systems, hands-on maintenance ability, and strong documentation practices. You will work with limited supervision and contribute to continuous improvement initiatives.

Qualifications

• High school diploma or equivalent required.
• Willingness to pursue certification/license as required.

Responsibilities

• Maintain and perform preventative maintenance on ammonia refrigeration systems.
• Observe and test system operation using gauges and instruments.
• Dismantle, assemble, and install refrigeration equipment.
• Document maintenance activities clearly and accurately.
• Assist with inventory and vendor coordination.
• Support training and troubleshooting to minimize downtime.
• Stay updated on new equipment and techniques.
• Identify opportunities to improve processes.

Skills

Advanced ammonia knowledge

Inspection & troubleshooting

Maintenance tools

Independent maintenance

Project planning

Process improvement

Adaptability

Team collaboration

Clear communication

Math skills

Computer skills

English proficiency

Education

High school diploma or equivalent

Trade/Technical school preferred

Ammonia refrigeration experience

Tools

Maintenance tools

Diagnostic instruments

Job description

dfa in Massachusetts seeks a Master Ammonia Refrigeration Technician to oversee the ammonia refrigeration system, perform installation and repairs, and ensure safe, efficient operation across the facility.

The role requires advanced knowledge of ammonia systems, hands-on maintenance ability, and strong documentation practices. You will work with limited supervision and contribute to continuous improvement initiatives.