High Voltage Lead Engineer

High Voltage Lead Engineer

NEXTDC Limited

NEXTDC is constructing the foundation for Australia's advanced technological future, designing, building, and operating world-class, next-generation data centres. We utilise state-of-the-art, environmentally efficient infrastructure to meet the diverse needs of local and international organisations. As an ASX 100-listed technology company, NEXTDC operates 16 data centres across 7 major Australian cities, with ongoing national and international expansion plans. We recognise that our success is driven by the talent of our team, fostering a culture of continuous learning and development. Our operations are built on collaboration and innovation, fuelled by a passion for our work and a commitment to being the premier customer-centric data centre services company, the nexus where Cloud lives and AI thrives.

Job Description

This role provides technical leadership and operational oversight for all High Voltage (HV) electrical infrastructure within our data centre campus. The focus is on ensuring the safe, reliable, and compliant operation of mission-critical power systems essential for hyperscale digital infrastructure. This is a hands-on technical leadership position where safety, precision, and uptime are paramount.

Key Responsibilities:

• Assume technical ownership of all HV electrical infrastructure, including switchgear, transformers, protection systems, and distribution networks.
• Plan, coordinate, and execute HV switching operations in accordance with approved procedures and safety standards.
• Issue and manage HV permits and access authorities, ensuring strict adherence to electrical safety requirements.
• Maintain and enforce HV operational procedures, covering switching, isolation, emergency response, and safety protocols.
• Coordinate planned outages and isolations for maintenance, upgrades, and fault resolution.
• Serve as the primary liaison with electricity utility providers for supply, outages, and infrastructure coordination.
• Oversee preventative and corrective maintenance programs for HV systems.
• Lead fault investigations, conduct root cause analysis, and develop corrective and preventive actions.
• Review and approve Method of Procedure (MOP), Emergency Operating Procedures (EOP), and Safe Work Instructions (SWI).
• Maintain accurate operational records, including switching logs, outage documentation, and compliance records.
• Support the commissioning and energisation of new HV infrastructure and expansion projects.
• Provide escalation support and after-hours technical response for HV incidents.
• Mentor and offer technical guidance to engineers and technicians working with HV systems.
• Ensure full compliance with electrical safety regulations, industry standards, and internal frameworks.
• Contribute to the continuous improvement of reliability, safety, and operational performance.

Requirements:

• Strong expertise in high voltage electrical systems within mission-critical environments.
• Proven experience performing HV switching operations and managing electrical isolations.
• Deep knowledge of HV switchgear, transformers, protection systems, and power distribution networks.
• Strong understanding of electrical safety regulations, permit systems, and safe work practices.
• Ability to interpret electrical schematics, single line diagrams, and protection studies.
• Strong analytical skills with the capacity to diagnose complex electrical faults.
• Excellent communication skills, with the ability to articulate technical concepts clearly.
• Strong organisational skills and attention to detail in documentation and procedures.
• Ability to operate effectively in a high-availability, safety-critical environment.
• Experience with BMS, SCADA, and power monitoring systems.
• Strong stakeholder management skills across internal teams, contractors, and utilities.

Qualifications:

• Degree in Electrical Engineering or a recognised electrical trade qualification with significant HV experience.
• 5–10+ years of experience in HV systems within data centres, utilities, power generation, or heavy industry.
• Demonstrated experience in HV switching operations and outage coordination.
• Strong understanding of power systems, including generators, transformers, UPS, and protection systems.
• HV Switching Authorisation and relevant electrical safety certifications.
• Experience managing HV maintenance programs and system reliability.
• Experience working with utility providers is highly desirable.
• NV1 Security Clearance (or ability to obtain) is desirable.

Additional Information:

This is a full-time, onsite position based in Melbourne, VIC.

Take advantage of this exciting opportunity to join one of Australia’s fastest-growing companies and play a key role in the future of AI and the digital economy. Become part of an inclusive, diverse, and values-driven working culture. Great opportunities exist for progression within our company as we grow. Our mission is to continue building a diverse and inclusive workforce that reflects the communities in which we operate. Make NEXTDC your next career move.