Industrial Refrigeration Technician: Ammonia Systems & Controls

Mars; Burr Ridge (IL); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Company bonus

Medical and dental benefits

Job summary

Mars is seeking an Industrial Refrigeration Technician to operate and maintain centralized utility systems including anhydrous ammonia, boilers, and HVAC systems. The role requires multi-craft skills, troubleshooting, and adherence to safety and regulatory standards.

The technician will perform preventive maintenance, manage work orders in SAP, and support projects and commissioning. Some weekend/holiday work and travel may be required as part of a team-driven facility.

Qualifications

• High school or trade school diploma with coursework in math, science and mechanical/electrical drawing.
• City of Chicago Stationary Engineer license or willingness to obtain.
• RETA (CIRO/CAIRO) certifications or willingness to obtain.
• Willingness to travel as required.
• 5+ years in industrial maintenance, ammonia refrigeration preferred or equivalent experience.

Responsibilities

• Operate and maintain the anhydrous ammonia system and associated equipment per PSM requirements.
• Perform preventive maintenance on mechanical, electrical and control systems and identify improvements.
• Enter work orders in SAP and coordinate with contractors.
• Assist in project start-up, direct contractors, and provide technical assistance.
• Respond to emergencies and document incidents to prevent safety risks.

Skills

Multi-craft skills

Troubleshooting

Preventive maintenance

Safety compliance

Education

High school or trade school diploma

Tools

SAP

Job description

Mars is seeking an Industrial Refrigeration Technician to operate and maintain centralized utility systems including anhydrous ammonia, boilers, and HVAC systems. The role requires multi-craft skills, troubleshooting, and adherence to safety and regulatory standards.

The technician will perform preventive maintenance, manage work orders in SAP, and support projects and commissioning. Some weekend/holiday work and travel may be required as part of a team-driven facility.