This full-time on-site role at a new commercial ammonia refrigeration facility in Rahway, New Jersey, involves the safe and efficient operation of R-717 systems. The position requires an active New Jersey Blue Seal 2-C Toxic Refrigeration license and focuses on monitoring compressors, condensers, and safety equipment while performing preventive maintenance and troubleshooting. Key responsibilities include managing system parameters to optimize energy use, responding to emergency alarms, and maintaining strict compliance with PSM and RMP regulations. The opportunity is appealing as a ground-floor position within a lean team at a modern plant, offering professional development support for license upgrades, comprehensive benefits, and a collaborative culture that prioritizes safety and continuous improvement.