Job Description

Job Type: Full-time | Location: Sydney, Australia | Department: Engineering | Reporting to: Engineering Manager |Work Location: #Hybrid

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.

As the High Voltage Design Lead at IREN, you will own and drive the high voltage (HV) electrical scope that enables reliable, utility-scale power delivery to our AI data centers. You will lead the development of HV concepts and standards, manage utility and interconnection interfaces, and provide technical leadership from early-stage site power strategy through detailed design, construction, testing, and commissioning. This role is hands-on and highly cross-functional, partnering with development, construction, commissioning, and operations to deliver safe, scalable, and cost-effective grid connections and HV infrastructure.

Job Requirements

- Bachelor’s degree in Electrical Engineering from an accredited institution (Master’s degree is an asset).
- 8+ years of progressive experience delivering HV/MV power systems, substations/switchyards, and/or utility interconnections for mission-critical, industrial, or utility-scale projects.
- Chartered Skilled Engineer (CPEng) with Engineers Australia, or eligibility and commitment to attain CPEng registration within an agreed time frame.
- Working knowledge of applicable standards and codes such as AS/NZS 3000, AS 2067 (substations), IEC 61936, IEC 60909, IEEE,



and relevant DNSP/NSP technical standards and connection requirements; familiarity with AEMO grid connection processes and the National Electricity Rules (NER) is highly desirable.

Job Responsibilities

Reporting to the Engineering Manager, the High Voltage Design Lead will lead and deliver HV electrical strategy, design oversight, and technical execution for IREN’s AI data center developments. You will ensure safety, reliability, schedule certainty, and compliance across utility interconnection, substations/switchyards, HV equipment, and related protection and control systems.

- Lead HV power delivery strategy for new and expanding AI datacenters, including utility engagement, capacity planning, phasing, redundancy concepts, and constructability inputs.
- Own utility and grid interconnection interfaces: coordinate technical requirements, review interconnection studies, manage data requests, and align designs with utility standards and project schedules.
- Develop and review HV/MV system designs including substations/switchyards, transformers, breakers, disconnects, bus work, grounding grids, duct banks, overhead/underground feeders, and station service.
- Lead protection and control (P&C;) technical scope: relay philosophy, protection coordination inputs, metering, SCADA/telemetry, settings review, and end-to-end testing strategy with commissioning teams.




- Provide technical leadership through design and construction: review drawings and specifications, resolve RFIs, support field execution, and ensure safe installation practices and quality documentation for turnover.
- Manage vendor/EPC deliverables and technical risk: evaluate equipment and contractor proposals, drive clarity on scope boundaries, and ensure compliance with IREN standards, applicable codes, and utility requirements.

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 & Rewards
Competitive salary range based on experience and impact

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!
IREN 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. This job will remain posted until filled. While we appreciate all applications we receive, we are only able to contact candidates under consideration.
By applying for this position and submitting your resume and application materials, you consent to the processing of your personal information in accordance with our Job Applicant Privacy Statement available on our website at www.iren.com.

📌 High Voltage Design (Melbourne)
🏢 IREN
📍 Melbourne