DescriptionJob Type: Full-time | Location: Sydney, Australia | Department: Engineering | Reporting to: Engineering Manager |Work Location: #HybridIREN 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.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.




RequirementsBachelor'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.Robust 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 ****, AS **** (substations), IEC *****, IEC *****, 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