HV Engineer

NEXTDC; Sydney; On-site; AUD 140,000 - 190,000; Full time

Job summary

NEXTDC in Sydney is seeking an experienced HV Engineer to provide national technical leadership across our growing HV network. This role focuses on governing the HV operating framework, regulatory compliance, and risk management as infrastructure scales from 66kV to LV.

Based in Sydney, you will work across NEXTDC’s national portfolio, reviewing designs, policies and switching programs to ensure safety and reliability.

Qualifications

• 8+ years’ experience with HV electrical systems in mission-critical, utility, power generation, large industrial or hyperscale data centre environments.
• Deep technical knowledge of HV distribution systems including substations, transformers, GIS, RMUs, protection systems and control systems for 66kV and 22/33kV networks.
• Relevant HV authorisations and electrical licences.
• Strong knowledge of AS/NZS electrical standards, electrical safety legislation and network operator requirements.
• Experience developing HV operating policies, switching procedures and operational frameworks.
• Ability to identify design and operational risks before construction.

Responsibilities

• Own and maintain NEXTDC’s HV operating policy across the full voltage hierarchy, including 66kV switch rooms and 22/33kV distribution.
• Develop and maintain HV switching programs, protection coordination studies, relay settings registers and RMU operating procedures.
• Provide SME support across HV testing, commissioning, maintenance and fault/emergency response.
• Lead or provide technical direction across HV testing, commissioning, maintenance and fault response.
• Engage with utilities, network operators and regulators on HV connection and network interface requirements.

Skills

HV systems

AS/NZS standards

Protection systems

RMUs

66kV

22/33kV distribution

Regulatory compliance

Technical leadership

Tools

Protection coordination studies

Relay settings management

Job description

At NEXTDC we are building the heart of Australia & Asia’s high-tech future. We design,buildandoperateworld class, next generation data centres, usingcutting edge, environmentally efficient infrastructure to service the specific requirements of local, international customers.

NEXTDC is an exciting ASX 100-listed technology company, only 16years young andoperating17 data centres across 7 major cities in Australia, with multiple international sites in development to support our customer’s digital infrastructure.

At NEXTDC our success depends on the talents of our people, and we foster a culture of continued learning and development. Our culture is built on collaboration and innovation, we are passionate about what we do, and we are committed to our mission to be the leading customer-centric data centre services company.

Where Cloud lives and AIthrives

As NEXTDC continues to expand its high voltage (HV) infrastructure, we are looking for an experienced HV Engineer to provide national technical leadership across our growing HV network.

This is a specialist role responsible for ensuring our HV operating framework, regulatory compliance and operational risk position continue to evolve as our infrastructure moves from utility intake through to 66kV supply, internal 22/33kV distribution, RMUs and multiple transformation stages to LV.

Based in Sydney, you will work nationally across NEXTDC’s existing and future HV sites, providing technical expertise, operational governance and design assurance rather than owning a single site’s HV footprint.

To be successful in this role you’ll have:

What you’ll do

• Own and maintain NEXTDC’s HV operating policy across the full voltage hierarchy, including 66kV switch rooms, 22/33kV distribution, RMUs, transformers, GIS, protection systems, isolation and earthing, switching and emergency response.

• Ensure HV systems, substations, transformers and associated equipment remain compliant with AS/NZS standards, state and territory electrical safety legislation and network operator requirements.

• Develop and maintain HV switching programs, protection coordination studies, relay settings registers and RMU operating procedures across NEXTDC facilities.

• Maintain strong relationships with network operators and utility stakeholders, including Ausgrid and Jemena, across connection agreements, protection interfaces and network requirements.

• Provide specialist technical review of new HV infrastructure, including incoming 66kV switch rooms, transformer sizing, busbar protection and substation layouts, identifying potential design deficiencies before construction.

• Provide SME support across HV testing, commissioning, maintenance, capital projects and fault/emergency response.

• Work across state and federal regulatory requirements to ensure a consistent and robust HV operating framework across NEXTDC’s national portfolio.

• 8+ years’ experience working with HV electrical systems within a mission-critical, utility, power generation, large industrial or hyperscale data centre environment.
• Deep technical knowledge of HV distribution systems, including substations, transformers, GIS, RMUs, protection systems and associated control systems across 66kV and 22/33kV networks.
• Relevant HV authorisations and electrical licences.
• Strong knowledge of AS/NZS electrical standards, electrical safety legislation and network operator requirements.
• Demonstrated experience developing HV operating policies, switching procedures and operational frameworks.
• Strong design-review capability, with the ability to identify technical and operational risks before new infrastructure is constructed.
• Experience with protection coordination studies and relay settings management.
• Experience engaging with utilities, network operators and regulators on HV connection, protection and network interface requirements.
• The ability to lead or provide technical direction across HV testing, commissioning, maintenance and fault response.

• Be part of a fast-growing, future-focused technology company
• Play a key role in supporting AI and digital infrastructure in Australia
• Thrive in a collaborative, inclusive, and values-driven culture
• Access career development and progression opportunities as we expand

Our mission is to continue building a diverse and inclusive workforce which represents the communities in which we operate.

Make NEXTDC your next move.