Tech- Ammonia Refrigeration: Sun-Wed

Join OSI Group for the Tech‑Ammonia Refrigeration role (Sun‑Wed 6pm‑6:30am).

This position focuses on maintaining, repairing, and examining ammonia refrigeration systems. Responsibilities include performing preventive maintenance, diagnosing and repairing equipment, operating refrigeration and utility systems, conducting daily chemical testing, and ensuring compliance with safety policies.

• Individual contributor with no direct reports.
• Confer with operators, observe, test, and evaluate machinery and equipment to diagnose malfunctions.
• Disassemble machinery to remove parts and make repairs.
• Operate refrigeration and utility systems.
• Perform daily chemical testing and log results to keep the system within limits.
• Adhere to safety policies, regulations, standards, and laws.
• Perform other duties as assigned.

• 3–5 years of experience in a related field preferred.
• Excellent proficiency in Microsoft Office Suite.
• Ability to work various shifts.
• Multi‑craft/multi‑skilled with expertise in electrical, controls, mechanical, pneumatics, hydraulics, and fabrication.
• Practical knowledge of plant utility systems (boiler, ammonia refrigeration, compressed air).

• Associate’s degree or equivalent preferred.
• Ammonia Refrigeration Certification is a plus.

• Manufacturing plant environment with noise, extreme temperatures, and vibration.
• Physical ability to lift up to 50 pounds repeatedly, perform bending, squatting, pushing, pulling, and walking on concrete.
• No domestic travel required.

Council Bluffs, IA

Salary: $73,500 – $103,000 annually.