Chiller Technician Specialist

IREN; Childress (TX); On-site; USD 95,000 - 150,000; Full time

Job summary

IREN is seeking a Chiller Specialist to serve as the most senior technical authority on shift for the central utility plant at our West Texas and Oklahoma campuses. You will own the safe, reliable operation of the thermal chain, including chillers, cooling towers, pumps, and water treatment systems to support AI compute loads.

You will act as the technical lead for the mechanical team, write and validate procedures, and oversee complex corrective work and vendor overhauls.

Qualifications

• 7+ years of hands-on experience maintaining and troubleshooting large-tonnage chiller plants.
• Minimum 3 years in a mission-critical environment such as data centers or similar.
• EPA Section 608 Universal certification is required.
• Experience with centrifugal and screw chillers from major OEMs.
• Ability to read mechanical drawings, P&IDs, schematics and control sequences.

Responsibilities

• Own the safe, reliable operation of the central utility plant (CUP).
• Write and validate Methods of Procedure.
• Lead complex corrective work and vendor-supported overhauls.
• Share technical expertise with Chiller Technicians and apprentices.
• Act as incident commander for thermal events.

Skills

Hands-on chiller maintenance

Mentor/mentoring

Read mechanical drawings & P&IDs

BMS/EPMS platforms

Change management in live environments

Critical environment experience

EPA 608 Universal certification

Job description

Job Type: Full-time| Location: Childress, TX | Department : Operations| Reporting to: Mechanical Manager | WorkLocation Type: #onsite

I REN is a leading AI Cloud Service Provider, delivering large-scale GPU clusters for AI training and inference. IREN’s vertically integrated platform is underpinned by its expansive portfolio of grid-connected land and data centers in renewable-rich regions across the U.S. and Canada.

The Chiller Specialist is the most senior technical authority on shift for the central utility plant (CUP) at IREN’s liquid-cooled hyperscale campuses in West Texas and Oklahoma. This role owns the safe, reliable operation of the entire thermal chain – centrifugal and screw chillers, cooling towers, pumps, heat exchangers, CDUs, coolant distribution loops and the water treatment systems that keep them alive – supporting AI compute loads where a cooling excursion measured in minutes becomes a customer-impacting event.

Beyond hands-on maintenance and troubleshooting, the Chiller Specialist is the technical lead for the mechanical team, setting the technical standard for central utility plant (CUP) operations. This individual writes and validates Methods of Procedure, leads complex corrective work and vendor-supported overhauls, shares technical expertise with Chiller Technicians at every level and apprentices, and acts as the incident commander for thermal events. This is a technical authority role rather than a people-management position – reporting to the Associate Director of Operations, it is a career destination for a technician who wants ownership of a world-class cooling plant rather than a truck and a service route.

With 100% renewable energy, we build, own and operate our data centers and take pride in being at the forefront of sustainable solutions for the ever-evolving applications of high-performance compute. We believe that human progress is invaluable, but it should be done in the right way – responsibly, sustainably and having a positive impact on the communities we operate in.

Job Description

Job Type: Full-time| Location: Childress, TX | Department : Operations| Reporting to: Mechanical Manager | WorkLocation Type: #onsite

I REN is a leading AI Cloud Service Provider, delivering large-scale GPU clusters for AI training and inference. IREN’s vertically integrated platform is underpinned by its expansive portfolio of grid-connected land and data centers in renewable-rich regions across the U.S. and Canada.

The Chiller Specialist is the most senior technical authority on shift for the central utility plant (CUP) at IREN’s liquid-cooled hyperscale campuses in West Texas and Oklahoma. This role owns the safe, reliable operation of the entire thermal chain – centrifugal and screw chillers, cooling towers, pumps, heat exchangers, CDUs, coolant distribution loops and the water treatment systems that keep them alive – supporting AI compute loads where a cooling excursion measured in minutes becomes a customer-impacting event.

Beyond hands-on maintenance and troubleshooting, the Chiller Specialist is the technical lead for the mechanical team, setting the technical standard for central utility plant (CUP) operations. This individual writes and validates Methods of Procedure, leads complex corrective work and vendor-supported overhauls, shares technical expertise with Chiller Technicians at every level and apprentices, and acts as the incident commander for thermal events. This is a technical authority role rather than a people-management position – reporting to the Associate Director of Operations, it is a career destination for a technician who wants ownership of a world-class cooling plant rather than a truck and a service route.

With 100% renewable energy, we build, own and operate our data centers and take pride in being at the forefront of sustainable solutions for the ever-evolving applications of high-performance compute. We believe that human progress is invaluable, but it should be done in the right way – responsibly, sustainably and having a positive impact on the communities we operate in.

Job Requirements

• 7+ years of hands-on experience maintaining and troubleshooting large-tonnage chiller plant, with at least 3 years in a mission-critical environment such as a data center, hospital, semiconductor fab, pharmaceutical plant or heavy industrial facility
• EPA Section 608 Universal certification is required
• Demonstrable expertise across centrifugal and screw chillers from major OEMs (Trane, Carrier, York/Johnson Controls, Daikin) including refrigerant circuits, oil systems, starters and control sequences
• Direct experience with liquid cooling infrastructure – CDUs, direct-to-chip loops, secondary fluid systems or immersion cooling – or closely transferable precision process cooling experience, with the appetite to specialize
• Strong working knowledge of cooling towers, pumps, heat exchangers, VFDs, water treatment chemistry and hydronic system balancing
• Ability to read and interpret mechanical drawings, P&IDs, schematics and control sequences
• Proven experience authoring or peer-reviewing Methods of Procedure and working under formal change management in a live critical environment
• Experience acting as a technical resource or informal mentor for less experienced technicians (formal supervisory experience is not required)
• Competence with BMS/EPMS platforms