Mechanical Lead

IREN • Sweetwater, WY

2d • Onsite

About The Position

As a Mechanical Lead, you will support the team responsible for operating and maintaining the Central Utility Plant (CUP) and critical cooling infrastructure serving both liquid-cooled and air-cooled data halls. You will monitor plant and building automation systems, complete operating rounds, respond to alarms, and coordinate with senior engineers and vendors to protect uptime, safety, and efficiency. 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. 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.

Requirements

• Licensed/certified stationary or operating engineer credential (or equivalent)
• Ability to maintain standing and meet site/authority requirements
• 3rd Class Power Engineer certificate required (or ability to obtain/maintain as required by site/authority)
• 5+ years of experience operating and maintaining industrial or mission-critical utility systems (central utility plants, data centers, hospitals, heavy industrial, oil & gas processing, etc.)
• Demonstrated experience leading work on shift and coordinating resources during abnormal conditions
• Central utility plant operations (chillers, condenser water systems, hydronic/glycol loops, pumps, heat exchangers, VFDs)

Nice To Haves

• Experience supporting liquid-cooled HPC or data center infrastructure — CDUs, manifolds, pumps, filtration, and leak detection
• Proficiency with BMS, SCADA, and/or PLC systems for equipment monitoring, trending, and setpoint adjustments
• Familiarity with water treatment and chemistry programs for condenser water, glycol/hydronic loops, and liquid-cooling systems
• Experience with reliability metrics and KPI reporting — uptime, energy efficiency (PUE/WUE), and maintenance backlog management

Responsibilities

• Monitor plant and building automation systems
• Complete operating rounds
• Respond to alarms
• Coordinate with senior engineers and vendors to protect uptime, safety, and efficiency
• Lead work on shift and coordinate resources during abnormal conditions
• Perform thermal risk analysis, capacity modeling, and energy efficiency optimization
• Troubleshoot and diagnose root cause and execute corrective actions in a live, high-uptime environment
• Execute and manage preventative maintenance programs including contractor coordination and return-to-service documentation
• Adjust plant operating strategies and equipment sequencing under changing load conditions
• Report on reliability metrics and KPIs — uptime, energy efficiency (PUE/WUE), and maintenance backlog management
• Collaborate with Engineering, IT, and Leadership on capacity planning, infrastructure upgrades, and expansion projects

Benefits

• Competitive wages based on experience starting at $36.75 / hour
• 15% night-shift premium for eligible roles, when applicable
• Overtime compensation for non-exempt workers for hours worked over 40 per week
• Relocation and Living-out-allowance (as applicable and based on successful candidate circumstances)
• 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
• 401(k) retirement plan with company match
• Paid professional development and access to financial planning and legal services
• Paid Time Off (PTO) and paid holidays
• Professional development to support certifications, continuing education, or role related training
• Company events and team-building activities

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed