Senior Chiller & Central Plant Technician (On-Call)

Mesa Energy Systems, Inc.; Irvine (CA); On-site; USD 55,000 - 124,000; Full time

Job summary

Mesa Energy Systems, Inc. in Irvine, CA is seeking a skilled HVAC Field Technician to maintain and repair central plant equipment, including large chillers, pumps, and cooling towers.

This on-site role requires on-call availability and strong diagnostic skills. You will perform testing, start-ups, commissioning, and schedule maintenance across site-wide systems, ensuring safety and quality while delivering excellent service to customers and vendors.

Qualifications

• 5 years of journeyman level work experience with technical schooling.
• Commercial/industrial air conditioning experience required.
• EPA certification and knowledge of chillers, HVAC, and central plants.
• Must be available for emergency service calls on a rotating schedule.

Responsibilities

• Maintain and repair central plant equipment including large chillers and associated systems.
• Overhaul centrifugal chillers is a plus.
• Perform preventative maintenance and on-site testing, start-ups, and commissioning.
• Coordinate with the Chiller Field Supervisor on customer opportunities and issues.

Skills

Journeyman level experience

EPA certified

Commercial/Industrial HVAC

Chillers & central plants

On-call availability

Education

Technical schooling

Job description

Mesa Energy Systems, Inc. in Irvine, CA is seeking a skilled HVAC Field Technician to maintain and repair central plant equipment, including large chillers, pumps, and cooling towers.

This on-site role requires on-call availability and strong diagnostic skills. You will perform testing, start-ups, commissioning, and schedule maintenance across site-wide systems, ensuring safety and quality while delivering excellent service to customers and vendors.