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Maintenance Mechanic III

The Wonderful Company•Mission, TX
•Onsite

About The Position

Repairs and maintains machinery, mechanical equipment, HVAC and air-conditioning systems, and industrial ammonia refrigeration systems, including motors, pneumatic tools, conveyor systems, refrigeration units, ventilation systems, evaporative condensers, ammonia compressors, pumps, vessels, and production equipment. Performs preventive maintenance, troubleshooting, inspections, repairs, and equipment testing, following technical documentation, manufacturer instructions, engineering specifications, and P&ID drawings. The role also supports safe operation of industrial ammonia refrigeration systems and compliance with company procedures, applicable regulations, environmental requirements, refrigerant-handling requirements, and Process Safety Management (PSM) requirements.

Requirements

  • High school diploma or equivalent.
  • One to three years of maintenance experience in a manufacturing or food-processing environment.
  • Trade school or occupational training is desired but not required.
  • No certificates, licenses, or registrations are required.

Nice To Haves

  • Experience with industrial ammonia refrigeration systems in a food-processing, cold-storage, or manufacturing environment is highly desired.
  • RETA CIRO, CARO, IIAR training, or equivalent industrial refrigeration certifications are preferred but not required.

Responsibilities

  • Complete preventive maintenance on motors, conveyor systems, mechanical, hydraulic, pneumatic, HVAC, industrial ammonia refrigeration, and production systems.
  • Observe mechanical devices, HVAC equipment, and ammonia refrigeration components in operation and listen for signs of trouble to identify causes.
  • Inspect used parts and measure dimensional requirements using rules, calipers, micrometers, gauges, and other measuring instruments.
  • Diagnose and repair electrical systems, including electric motors, photo-eyes, sensors, HVAC controls, thermostats, VFDs, motor starters, control circuits, and wiring systems up to 480V.
  • Troubleshoot, repair, and perform preventive maintenance on air conditioning, heating, ventilation, refrigeration, and industrial ammonia refrigeration systems.
  • Inspect HVAC and ammonia refrigeration components to verify proper operation and efficiency.
  • Repair or replace defective HVAC and ammonia refrigeration components.
  • Monitor refrigerant levels, system pressures, temperatures, oil and vessel levels, equipment performance, and leaks; complete repairs in accordance with regulations and safety standards.
  • Operate, monitor, and assist with maintenance of industrial ammonia refrigeration equipment and associated controls.
  • Respond to ammonia refrigeration alarms and abnormal operating conditions, identify root causes, and implement corrective actions.
  • Assist with ammonia system startup, shutdown, pump-out, defrost, and emergency procedures in accordance with company safety policies and PSM requirements.
  • Dismantle devices to access and remove defective parts; repair or replace parts, and lubricate and clean components.
  • Start and test devices, HVAC equipment, and ammonia refrigeration equipment to verify performance.
  • Set up and operate a drill press, grinder, and other metalworking tools to make and repair parts.
  • Reduce downtime by informing production workers about routine preventive maintenance techniques and monitoring compliance.
  • Document completed work on work orders according to established procedures.
  • Maintain a safe and clean work environment and comply with procedures, rules, regulations, environmental requirements, refrigerant-handling requirements, and PSM regulations for industrial ammonia refrigeration systems.

Benefits

  • Onsite cafe, gym, and clinic
  • Competitive benefits package including medical, vision, dental, and 401(k)
  • Continued training and an Education Reimbursement Program
  • Paid sick, vacation, and holiday time
  • Wonderful Giving program, allowing employees to donate company money to a cause of their choice
  • Opportunities for advancement

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