Ammonia Refrigeration Tech III – Maintenance & Compliance

Lineage; University Park (IL); On-site; USD 4,013,000 - 6,768,000; Full time

Benefits offered by this job

Medical, dental, and life insurance

401k retirement plan

Paid time off & holidays

Job summary

Lineage is seeking a Maintenance Technician III (Ammonia Refrigeration) to support our industrial cold storage facility in the United States. You will perform preventive and corrective maintenance on refrigeration and electrical systems, troubleshoot ammonia equipment, and document activities in CMMS.

Flexibility for overtime and extreme temperatures is required. Ideal candidates have 2+ years in industrial refrigeration plus 3+ years mechanical/electrical maintenance in similar settings.

Qualifications

• 2+ years in industrial refrigeration (ammonia, Freon, CO2).
• 3+ years mechanical/electrical maintenance in warehouse/manufacturing.
• Basic understanding of electrical instrumentation, P&IDs, pneumatics, hydraulics.
• Strong problem‑solving, communication, and documentation skills.
• Proficient with Word, Excel, and CMMS.

Responsibilities

• Perform preventive, predictive, and corrective maintenance on refrigeration, electrical, mechanical, and building systems.
• Troubleshoot ammonia systems (compressors, condensers, evaporators, valves, controls) per PS/RMP and IIAR.
• Inspect, test, and calibrate refrigeration and electrical components for integrity.
• Document maintenance activities and parts usage in CMMS.
• Monitor contractors near refrigeration systems, ensure safety compliance.
• Report system status and recommendations to leadership.

Skills

Industrial refrigeration

Mechanical maintenance

Electrical maintenance

Instruments & controls

P&IDs

Pneumatics

Hydraulics

CMMS

Communication

Documentation

Extreme temperatures

Lifting 40 lbs

Shift flexibility

Education

Trade school training

Tools

CMMS

Word

Excel

Job description

Lineage is seeking a Maintenance Technician III (Ammonia Refrigeration) to support our industrial cold storage facility in the United States. You will perform preventive and corrective maintenance on refrigeration and electrical systems, troubleshoot ammonia equipment, and document activities in CMMS.

Flexibility for overtime and extreme temperatures is required. Ideal candidates have 2+ years in industrial refrigeration plus 3+ years mechanical/electrical maintenance in similar settings.