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 protected, scalable, and cost-effective grid connections and HV infrastructure.

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





- 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 Professional Engineer (CPEng) with Engineers Australia, or eligibility and commitment to attain CPEng registration within an agreed time frame.
- Strong knowledge of HV equipment and systems: power transformers, breakers, disconnect switches, instrument transformers (CTs/VTs), bus, surge arresters, earthing systems, and cable/line interfaces.
- Experience with protection & control systems including relay schemes, metering, SCADA/communications, and commissioning/testing workflows (e.g., secondary injection, end-to-end testing).
- 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.
- Proven ability to lead technical scope across multiple stakeholders (utilities, EPCs, OEMs, network service providers (NSPs/DNSPs), state electrical safety regulators, and local councils) with strong documentation, communication, and decision-making skills.

📌 High Voltage Design Lead (Sydney)
🏢 IREN
📍 Sydney