Refrigeration Mechanic II (Ammonia)

Company: Americold Warehousing
Location: Darien
Posted on: February 12, 2026

Job Description:

Job Description Job Description Primary Responsibility : Under general supervision, works independently performing routine refrigeration maintenance and repair throughout the warehouse. What You’ll Do: Performs operation, repair and adjustment of refrigeration system. Monitors system performance and determines when system is not operating correctly. Replaces components within the refrigeration’s system, with safe LOTO procedures and in accordance with PSM program. Performs basic pump out/evacuate refrigerant as necessary for valve replacement and/or repair. Performs routine maintenance on various types of warehouse equipment in accordance with OSHA Standards. Tests, maintains, and evaluates equipment performance using instruments such as voltmeters, ohmmeters, pyrometers, and pressure gauges. Tests and calibrates HVAC equipment. Inspects completed work for compliance to blueprints, specifications, and safety standards. Troubleshoots equipment and recommends corrective action. Individual should understand key troubleshooting techniques to determine root cause. Conducts tests of safety equipment to ensure OHSA and operational standards Maintains accurate preventive maintenance records with the CMMS System. Keeps work area and tools 6S’d (well maintained, clean, organized, etc.), and performs housekeeping duties as required. Work flexible shifts, if required, including on call. Performs related work and other job assignments as required. What Experience and Education You Need: High school diploma or general education degree (GED) 2 years of Industrial Refrigeration Maintenance experience OR 3 years Industrial Maintenance experience, plus relevant industry certification (i.e. RETA, Garden City, EPA Universal etc) Required to successfully complete assigned Industrial Refrigeration and maintenance courses. Troubleshooting and repairs with differing control systems ALTA/Allen Bradley etc. Required to be trained in HAZMAT; obtain and maintain the certification. Experience using Oracle Computerized Maintenance Management System (CMMS) What Could Set You Apart : Experience working in a Cold Storage environment Ammonia refrigeration maintenance experience CARO and CIRO certification Experience using Oracle Computerized Maintenance Management System (CMMS) Ability to troubleshoot and diagnose down to the component level on all refrigeration equipment Share knowledge, train and develop less experienced technicians Physical Requirements: The physical demands described below are representative of those that must be met to successfully perform the essential functions of the job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions of the job. • May be required to tolerate working environment with inside controlled temperatures of –20 degrees Fahrenheit and outside ambient temperatures (including heat, cold and precipitation). • Must be able to work at heights in excess of 35 ft. and be able to access elevated platforms and catwalks • Must be able to climb ladders and stairs. • Frequently required to stand; walk; push; pull; reach with hands and arms; stoop; kneel; and crouch • Must frequently lift and/or move up to 50 pounds. • Must be able to use hand and power tools. • Specific vision abilities required by this job include close vision, distance vision, color vision and depth perception. Either naturally or with the aid of eye glasses (use of contacts are prohibited when working with ammonia). • Able to work nights and weekends. • Able to pass a physical and respiratory exam. Americold is an Equal Opportunity/Affirmative Action Employer. EOE/AA M/F/D/V DFW. You should be proficient in: Refrigeration Systems Ammonia Refrigeration Systems

Keywords: Americold Warehousing, Wheaton , Refrigeration Mechanic II (Ammonia), Engineering , Darien, Illinois