High Voltage Construction Supervisor-Sweetwater

Job Type: Full-Time | Location: Sweetwater, TX | Department: Construction | Reporting to: Associate Director, Construction | Work Location Type: #onsite IREN is a vertically integrated AI Cloud provider, delivering large-scale data centers and GPU clusters for AI training and inference. IRENs platform is underpinned by its expansive portfolio of grid-connected land and power in renewable-rich regions across North America, Europe and APAC. The High Voltage (HV) Construction Supervisor is a critical leadership role responsible for protecting and delivering power to some of the most advanced, mission-critical data center infrastructure in the industry. In this role, you will serve as the site authority for high-voltage systems, leading technicians and contractors through complex switching, maintenance, and outage activities that directly support 24/7 operations. You will work at the center of power reliabilitypartnering with Operations, Engineering, and utility providers to ensure safe, uninterrupted energy delivery while supporting system expansions and next-generation infrastructure growth. 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. - High school diploma or equivalent required. - Minimum 7 years of experience working with high-voltage systems (13.8kV-345kV) in substations, utilities, industrial facilities, or data center environments. - Minimum 2 years of experience in a lead or supervisory role (Supervisor, Foreman, Lead Technician, or equivalent) overseeing HV electrical work execution. - Journeyman or Master Electrician license, or Journeyman Lineman license. - Authorized/qualified for high-voltage switching. - NETA certification or equivalent HV testing experience. - NFPA 70E and OSHA 30 certification. - Expert knowledge of HV switching procedures and substation safety practices. - Strong technical understanding of power transformers, circuit breakers, protective relays, battery and DC control systems, Substation control schemes. - Ability to read and interpret one-lines diagrams, schematics, wiring diagrams, relay logic, and coordination studies. - Working knowledge of HV testing and diagnostics, including: DGA / oil analysis, insulation resistance testing, breaker timing, infrared thermography, SF6 handling and testing. - Strong leadership presence with effective communication and contractor coordination skills. - Proven ability to make sound decisions during outages, abnormal operating conditions, and emergency response events. - Proficient with QA/QC systems, PtW and Switching Instruction documentation, and reporting standards. Other Important Requirements: - Pre-employment screening, including background check and substance testing may be required according to company policies. - Work performed in outdoor substations and energized electrical environments. - Must provide own steel-toed work boots; all other required PPE will be supplied. - Ability to walk job sites, climb ladders and stairs, and perform field inspections and oversight. - Must be able to reliably commute to the work site daily or relocate prior to start. - Must be comfortable working a rotational schedule, including days, nights, weekends, and holidays as required. - Must be able to respond during off-hours for emergency events. - Employees working night shifts receive a 15% shift premium for hours worked during night shifts. - Supervise daily HV construction activities to ensure safe, compliant, and high-quality execution across substations. - Lead HV switching, isolation grounding, and restoration activities in accordance with company procedures and NFPA 70E / OSHA requirements. - Oversee installation, commissioning, and energization of HV equipment, including transformers, circuit breakers, switchgear, protective relays, and control power systems. - Coordinate and oversee third-party contractors performing HV testing, and commissioning work; verify qualifications, scope compliance, and work quality. - Ensure compliance with NEC, NERC (where applicable), local utility requirements, and internal operational standards. - Review, approve, and maintain switching orders, QA/QC reports, condition assessments, test results. - Support fault response, troubleshooting, incident investigations, and root cause analysis (RCA); implement corrective actions to prevent recurrence. - Partner with Engineering and Operations on outage planning, load transfers, equipment upgrades, commissioning, and energization activities. - Provide leadership, mentoring, and training to HV technicians, reinforcing safe work practices and procedural discipline. - Maintain strict adherence to all safety policies and procedures. Safety is a condition of employment. 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. Compensation - The expected hourly rate for this role is $59.00 USD. - Actual compensation will be determined based on factors such as experience, qualifications. - Per Diem amount of $180.00 and project allowance, when applicable - 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) Health and 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 and Financial Wealth - 401(k) retirement plan with company match - Paid professional development and access to financial planning and legal services []{style="margin: 0px; font-weig "}