Job descriptionJob Type: Full-Time |
Location: Sweetwater, TX |
Department: Construction |
Reporting to: Associate Director, Construction |
Work Location Type: #onsite
The
Construction High Voltage (HV) 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 reliability-partnering with Operations, Engineering, and utility providers to ensure safe, uninterrupted energy delivery while supporting system expansions and next-generation infrastructure growth.
Job requirements - 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.
Job responsibilities - 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.
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.
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 & 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. If you're passionate about this role, we want to hear from you - whether you meet every criteria or not. Your unique experiences might be exactly what we need!
