Ammonia Refrigeration Tech III: Growth & Certs

onelineage; University Park (IL); On-site; USD 40,000 - 68,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

401(k) retirement plan

Paid time off

Annual bonus eligibility

Holiday benefits

Job summary

Lineage is seeking a Maintenance Technician III (Ammonia Refrigeration) in University Park, IL to support an industrial cold storage facility. This hands-on role emphasizes safety, reliability, and precise preventive, predictive, and corrective maintenance of refrigeration systems.

You will troubleshoot ammonia equipment, document activities in CMMS, and coordinate with contractors while adhering to PSM/RMP and IIAR standards. The position requires flexibility for varying shifts and overtime.

Qualifications

• 2+ years of industrial refrigeration experience (ammonia, Freon, and/or CO₂); trade school or equivalent training preferred.
• 3+ years of mechanical/electrical maintenance experience in a warehouse, processing, or manufacturing environment.
• Basic understanding of electrical instrumentation, P&IDs, pneumatics, and hydraulics.
• Strong problem-solving, communication, and documentation skills; able to convey technical details to non-technical audiences.
• Proficient in basic computer applications (Word, Excel, CMMS).
• Ability to work in extreme temperature environments (−20°F to 100°F) and lift up to 40 lbs.

Responsibilities

• Perform preventive, predictive, and corrective maintenance on industrial refrigeration, electrical, mechanical, and building systems to ensure optimal uptime and safety.
• Troubleshoot and repair ammonia compressors, condensers, evaporators, valves, and controls in compliance with all PSM/RMP and IIAR standards.
• Conduct regular inspections, performance testing, and calibration of refrigeration and electrical components to maintain system integrity and efficiency.
• Document all maintenance activities and parts usage in the CMMS.
• Support and monitor contractors working on or near refrigeration systems, ensuring full adherence to safety protocols.
• Communicate system status, findings, and maintenance recommendations clearly to leadership and cross-functional teams.

Skills

Industrial refrigeration

Troubleshooting

Documentation

Communication

Education

Trade school or equivalent training

Tools

CMMS

P&IDs

Electrical instrumentation

Job description

Lineage is seeking a Maintenance Technician III (Ammonia Refrigeration) in University Park, IL to support an industrial cold storage facility. This hands-on role emphasizes safety, reliability, and precise preventive, predictive, and corrective maintenance of refrigeration systems.

You will troubleshoot ammonia equipment, document activities in CMMS, and coordinate with contractors while adhering to PSM/RMP and IIAR standards. The position requires flexibility for varying shifts and overtime.