Onsite Utilities Technician: NH3 & Plant Systems Expert

Mars Incorporated; Waco (TX); On-site; USD 65,000 - 90,000; Full time

Job summary

Mars Incorporated is seeking an Utilities Technician for our Waco, TX facility. Onsite role requiring hands-on operation of NH3 refrigeration, boiler/steam, compressed air, HVAC/AHUs, and building utilities to support safe, reliable plant operations.

The candidate will monitor equipment, assist in incident investigations, and coordinate with maintenance and contractors. Shift work, including nights or weekends, may be required as part of operations.

Qualifications

• 3+ years of industrial utilities or plant operations experience.
• Hands-on exposure to NH3 refrigeration, boilers/steam, compressed air, HVAC/AHUs.
• Experience coordinating contractors in regulated manufacturing environments.
• NH3 refrigeration credentialing and boiler operator credentials preferred.
• Shift work may include nights/weekends/holidays.

Responsibilities

• Operate all assigned utility systems following site safety rules and procedures.
• Support compliance programs—inspections, permits, audits, investigations and corrective actions.
• Monitor NH3 refrigeration equipment; perform routine checks and trend operating parameters.
• Operate boilers/steam systems and maintain water treatment and blowdown tasks.
• Operate and monitor compressed air, HVAC/AHUs, and building utility systems.
• Coordinate with maintenance and approved contractors for repairs and shut downs.
• Maintain shift logs, readings, and CMMS documentation.

Skills

Safety-first mindset

Troubleshooting

Clear communication

Planning & prioritization

Team collaboration

Education

High school diploma/GED

Technical training preferred

Job description

Mars Incorporated is seeking an Utilities Technician for our Waco, TX facility. Onsite role requiring hands-on operation of NH3 refrigeration, boiler/steam, compressed air, HVAC/AHUs, and building utilities to support safe, reliable plant operations.

The candidate will monitor equipment, assist in incident investigations, and coordinate with maintenance and contractors. Shift work, including nights or weekends, may be required as part of operations.