Ammonia Refrigeration Technician

OVERVIEW

Support the manufacturing and warehouse campus through maintenance, repair, and construction of ammonia refrigeration, plant utilities, automated systems, and building services.

As a Stationary Systems Operator you will operate and maintain multiple steam and refrigeration systems that serve H‑E‑B warehousing and manufacturing facilities.

• Refrigeration Operations – Perform basic refrigeration operations (equipment online/offline, water testing, oil draining, charging compressors, etc.), engine room checks, pump‑downs, troubleshooting, and preventive maintenance on equipment.
• Refrigeration Mechanical – Perform mechanical maintenance and repair tasks, assist higher‑level operators with installation and troubleshooting of industrial refrigeration equipment.
• Refrigeration Electrical – Read and apply basic electrical diagrams, use test equipment (ammeter, multimeter) for measurements on AC/DC circuits 12–480 V, assist with complex electrical equipment.
• Refrigeration Maintenance – Preserve piping/equipment with paint coatings, inspect and maintain screw compressors, purgers, centrifugal pumps, condensers, evaporators, valves.
• Boiler Operations – Conduct boiler room checks, perform blowdown, start‑up/shut‑down of boilers and auxiliary equipment, test and treat boiler water and feed water.
• Boiler Maintenance & Repair – Assist in preparing boilers for inspections, troubleshoot and repair complex steam equipment.
• Compliance & Safety – Act as a first responder in HAZMAT situations, follow SOPs for logs, work orders, lockout‑tagout, and maintain appropriate stationary engineer license.

• High school diploma or equivalent.
• Minimum 2 years experience in industrial maintenance.
• Pass RETA‑CARO certification within one year.
• 40‑hour HAZMAT certification (or ability to obtain).
• Boiler operator license (or ability to obtain).
• Strong organization, time‑management, and communication skills.
• Ability to manage multiple priorities and maintain attention to detail.
• English language proficiency.
• Initiative and willingness to learn and develop.

• Work while standing, sitting, stooping, bending, and with hands over heads.
• Climb and work from a 25‑foot ladder or other elevated platforms.
• Occasionally lift and carry up to 90 lbs.
• Operate in extreme temperatures ranging from –20 to 130 °F.
• Pass an annual HAZMAT physical.
• Obtain and maintain required stationary engineer license per local, state, or federal codes.