Refrigeration Technician III

Lineage Logistics; Milwaukee, Northern (WI, KY); On-site; USD 75,000 - 95,000; Full time

Job summary

Lineage Logistics is seeking a Maintenance Technician III (Ammonia Refrigeration) to support the upkeep of our industrial cold storage facility. You will perform preventive, predictive, and corrective maintenance on refrigeration systems and related electrical/mechanical building systems.

The role requires hands-on troubleshooting of ammonia compressors, condensers, evaporators, and controls, with documentation in CMMS and close collaboration with safety and operations teams.

Qualifications

• 2+ years of industrial refrigeration experience (ammonia, Freon, and/or CO2) 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.
• Flexible to work various shifts, weekends, and overtime as needed.

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 Computerized Maintenance Management System (CMMS).
• Support and monitor contractors working on or near refrigeration systems, ensuring full adherence to company and regulatory safety protocols.
• Communicate system status, findings, and maintenance recommendations clearly to leadership and cross-functional teams.

Skills

Industrial refrigeration

Mechanical maintenance

Electrical maintenance

Communication

Problem-solving

Education

Trade school or equivalent training

Tools

CMMS software

Word/Excel

Job description

Shift Schedule: Monday - Friday, 8:00am - 4:30pm (flexibility between 1st and 2nd shift)

Join Lineage – The World’s Leading Temperature-Controlled Logistics Company

At Lineage, innovation and efficiency drive everything we do. We are seeking a Maintenance Technician III (Ammonia Refrigeration Technician) at the intermediate to advanced level to support the upkeep of our industrial cold storage facility and the essential equipment that keeps operations running. This hands‑on role is perfect for technicians who take pride in precision, reliability, and compliance—performing regular testing, inspections, and adjustments to ensure every system operates to exact design and safety standards.

Key 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 Computerized Maintenance Management System (CMMS).
• Support and monitor contractors working on or near refrigeration systems, ensuring full adherence to company and regulatory safety protocols.
• Communicate system status, findings, and maintenance recommendations clearly to leadership and cross-functional teams.

Minimum 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.
• Flexible to work various shifts, weekends, and overtime as needed.

Preferred Qualifications

• RETA, GCAP, or IIAR certifications such as CARO, CIRO, or Operator I/II are highly valued — or willingness to obtain within 6 months of hire.

Why Lineage?

This is an excellent position to begin your career path within Lineage! Success in this role enables greater responsibilities and promotions! A career at Lineage starts with learning about our business and how each team member plays a part each and every day to satisfy our customers’ requirements. Beyond that, you’ll help us grow and learn on our journey to be the very best employer in our industry. We’ll ask you for your opinion and ensure we do our part to keep you developing and engaged as we grow our business. Working at Lineage is energizing and enjoyable. We value respect and care about our team members.

Equal Employment Opportunity

Lineage is an Equal Employment Opportunity Employer and is committed to compliance with all federal, state, and local laws that prohibit workplace discrimination and unlawful harassment and retaliation. Lineage will not discriminate against any applicant on the basis of race, color, age, national origin, religion, physical or mental disability or any other protected status under federal, state and local law.

Benefits

Lineage provides safe, stable, reliable work environments, medical, dental, and basic life and disability insurance benefits, 401k retirement plan, paid time off, annual bonus eligibility, and a minimum of 7 holidays throughout the calendar year.

More vacancies in the Netherlands

At Lineage, we have a shared purpose: We are transforming the food supply chain to eliminate waste and help feed the world. The work we do is noble, and our team members are passionate about the impact they make every day. Working at Lineage is not just a job – it’s an opportunity to innovate and put your mark on how food moves from the farm to dinner tables around the world. As a member of the Lineage Logistics team, you are a critical link in the food supply chain.

At Lineage Logistics, helping to feed the world is more than a job – it’s a purpose we live every day.

Lineage is one of the world’s leading temperature-controlled logistics companies. Driven by our core values, we’re reimagining the global food supply chain. Lineage helps customers ranging from Fortune 500 companies to small family-owned businesses increase the efficiency and protect the integrity of their temperature-controlled supply chain. In recognition of the company’s leading innovations, Lineage was recognized as the No 1. Data Science company on Fast Company’s annual list of the World’s Most Innovative Companies in 2019, in addition to ranking 23rd overall in an evaluation of thousands of companies worldwide. As part of the Lineage family, you’ll have the opportunity to grow your career as we continually expand, using technology and award‑winning innovations, to meet the needs of customers around the world.