Reliability Engineering Advisor, Thermal Systems & Cooling

Iren Group; Fort Worth (TX); Hybrid; USD 140,000 - 200,000; Full time

Benefits offered by this job

Health insurance

Disability insurance

401(k) with company match

Paid time off

Professional development

Relocation assistance

Job summary

IREN is seeking a Reliability Engineering Advisor, Thermal Systems & Cooling, to act as the technical authority for data center thermal infrastructure—from central plants to IT load cooling systems. The role requires hands-on collaboration with site teams, defining operating envelopes, and leading RCA-driven improvements across the portfolio.

The successful candidate will oversee cooling-water chemistry, OEM service alignment, and reliability programs, while mentoring site reliability engineers

Qualifications

• Bachelor-level degree in mechanical or process engineering or equivalent.
• 10+ years in reliability or plant engineering for mission-critical cooling and utility plants.
• Experience with cooling-water and coolant chemistry programs and monitoring.

Responsibilities

• Own thermal and cooling asset strategies across the portfolio, including maintenance plans and OEM service requirements.
• Set operating envelopes and water-quality limits; maintain accountability for deviations.
• Own cooling-water and coolant chemistry program: treatment specs, monitoring, and audits.
• Provide direction to campus reliability engineers; mentor and develop team members.
• Lead failure analyses (RCAs) for critical events and translate findings into actionable changes.
• Define what is monitored on each asset class and establish health analytics to guide decisions.
• Support operational readiness for new campuses through design reviews and commissioning.

Skills

Reliability engineering

Thermal systems

Leadership

Education

Mechanical or Process Engineering degree

CMRP/CRL or CEM credentials

Professional registration (asset)

Tools

BMS/SCADA

CMMS

Job description

Job Description

IREN is a vertically integrated AI Cloud provider, delivering large-scale data centers and GPU clusters for AI training and inference. IREN’s platform is underpinned by its expansive portfolio of grid-connected land and power in renewable-rich regions across North America, Europe and APAC.

The Reliability Engineering Advisor, Thermal Systems & Cooling is the function's technical authority for IREN's data center thermal and cooling infrastructure, from the central utility plant to the IT heat load: chilled-water and dry-cooler plants, hydronics, pumps and heat exchangers, CRAH/CRAC and air-side systems, liquid cooling loops and coolant distribution units, and the cooling-water and coolant chemistry behind them.

Job Type: Full Time | Location: Dallas/Fort Worth | Department: Engineering | Reporting to: Senior Manager, Asset Management | Work Location Type: #hybrid

The role owns the enterprise thermal asset strategies, operating envelopes and water-quality limits; owns the cooling-water and coolant chemistry program; leads failure analysis for thermal and cooling assets; defines what is monitored on each thermal asset class and the technical basis for OEM service decisions. It is hands‑on with the site teams: supporting incidents, conducting cooling readiness reviews at each campus stage and witnessing commissioning, approving fit‑for‑purpose deviations from Regional Asset Managers, and giving functional direction and mentoring to the site reliability engineers, who execute to its strategies and elevate to it.

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

• Degree in mechanical or process engineering; professional registration an asset.
• 10+ years in reliability or plant engineering on mission‑critical or industrial cooling and utility plant; liquid cooling experience or the ability to transfer similar knowledge and come up to speed on it quickly.
• Cooling-water and coolant chemistry: treatment programs, water‑quality limits and their monitoring.
• Process and thermal engineering: heat and mass balance, plant optimization, redundancy philosophies and the consequence of a cooling failure for IT load.
• Reliability method: RCM/FMECA, criticality‑based maintenance strategies, operating limits, failure analysis and RCA; has loaded strategies into a CMMS.
• Working literacy in controls (BMS/SCADA) and electrical systems sufficient to coordinate with the controls and electrical engineers; condition monitoring for rotating and thermal equipment.
• Non‑authoritative technical leadership: sets and defends a standard with site engineers and operations managers through functional direction; clear technical writing; at home on the plant floor and in a design review.
• Preferred: mechanical engineering plus mission‑critical chiller plant. Chemical/process engineering plus industrial utilities and water treatment advisable; CMRP/CRL, CEM or refrigeration credentials.

Other Important Requirements

• Pre‑employment screening, including background check and substance testing may be required according to company policies.
• Regular travel to the Childress campus and other IREN sites is required, including extended periods on site during commissioning and start‑up; availability to support cooling incidents outside normal hours as needed.

Job Responsibilities

• Own the asset strategies for the thermal and cooling asset classes across the portfolio: criticality‑based maintenance strategies, spares criticality and OEM service requirements, loaded into the CMMS and adopted at every operating campus.
• Set the operating envelopes and limits for thermal systems and the water‑quality limits for cooling water and coolant; hold technical accountability for deviations from them; escalation enterprise‑level deviations to the Senior Manager and the Global Director.
• Own the cooling‑water and coolant chemistry program: treatment specifications, vendor performance requirements, monitoring and audit, and the response when limits are exceeded.
• Provide the functional direction for the campus mechanical and HVAC reliability engineers: profile, hiring panel, onboarding, technical objectives and appraisal input; mentor and develop them in the discipline.
• Lead failure analysis for thermal and cooling events: RCA for severity 1 and repeat failures, findings converted into strategy and limit changes, design lessons fed to Engineering.
• Specify what is monitored on each thermal asset class, the thresholds, and the asset‑health analytics that feed strategy.
• Support operational readiness for new campuses: review cooling plant design and commissioning deliverables for operability and maintainability, define the thermal acceptance criteria at each readiness level, and confirm strategies, spares and limits are in place before handover.
• Provide the thermal and cooling inputs to lifecycle, risk and investment decisions and the technical basis for OEM service decisions

Job Benefits

At IREN, we offer a comprehensive, market‑competitive total rewards package designed to support employees’ well‑being, career advancement, and financial wealth. Our offerings reflect our commitment to Proceed with Purpose while rewarding high performance and long‑term growth.

• Actual compensation will bedeterminedbased on factors such as experience, qualifications, and market data for the region.
• Total Compensation packagemay beinclusive of short‑term and long‑term incentives.
• Relocation (as applicable and based on successful candidate circumstances)

Health & Wellness

• 100% company paid health insurance premiums (medical, dental, and vision) for employees, 75% company paid coverage for dependents
• Company‑paid short‑term and long‑term disability insurance
• Voluntary life, critical illness, and accident coverage available
• Health Savings Accounts (HSA) – when combined with the High‑Deductible Health Plan
• Employee Assistance Program and wellness resources

Retirement & Financial Wealth

• 401(k) retirement plan with company match
• Paid professional development and access to financial planning and legal services

Time Off & Leave Programs

• Paid Time Off (PTO) and paid holidays

Growth & Development

• Professional development to support certifications, continuing education, or role related training

Community & Culture

• Company events and team‑building activities

We value diverse perspectives and believe that skills can be developed.

IE US Operations Inc., the employing entity and proud member of the IREN group is an equal opportunity employer that is committed to creating an inclusive workplace. We are committed to evaluating qualified applicants and do not discriminate against protected characteristics under applicable legislation.

IE US Operations, Inc. “IREN” participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the United States.