HIRING FOR ALL SHIFTS. Maintain, diagnose and repair refrigeration equipment. Maintain daily logs and other required paperwork. Operate, maintain and troubleshoot ammonia refrigeration compressors, condensers, pumps, vessels, re-circulators, purgers, evaporators, valves, etc. All other relevant duties to the job. 1+ year experience operating and maintaining Ammonia Refrigeration systems required. 1+ year experience with electrical low and high voltage circuits required. Strong math skills and technically savvy.