Job Overview & Organization Mission

Manage multi-megawatt high-voltage substations, rotary UPS arrays, and emergency generator systems powering hyperscale cloud infrastructure at NEXTDC.

NEXTDC is hiring a Critical Power High Voltage Electrical Technician for our S3 flagship facility in Artarmon, Sydney. You will be responsible for the continuous operation, HV switching programs, preventative maintenance, and thermal imaging of our 11kV/33kV substations, dual-corded UPS rooms, and multi-megawatt backup generation plant.

As a key member of the team at NEXTDC in Sydney, NSW, you will play a central role in driving excellence, upholding top-tier Australian industry standards, and contributing directly to the strategic milestones of one of the nation’s premier employers.

Key Duties & Core Responsibilities

In this critical role, your operational duties and key performance responsibilities will encompass:

• Prepare, review,: Prepare, review, and execute High Voltage (HV) and Low Voltage (LV) switching schedules and isolation permits.
• Conduct preventative: Conduct preventative maintenance and load bank testing on multi-megawatt standby diesel generators and static UPS banks.
• Perform infrared: Perform infrared thermographic inspections on critical electrical switchboards, busways, and distribution panels.
• Monitor power: Monitor power quality, harmonic distortion, and electrical load balances across data halls.
• Provide immediate: Provide immediate first-response troubleshooting during mains power disruptions to ensure seamless failover.

Required Qualifications, Licenses & Experience

To be successful in this position at NEXTDC, candidates are expected to satisfy the following essential selection criteria:

• Mandatory Qualification: Unrestricted Australian Electrical License (A-Grade) + High Voltage (HV) Switching Operator certification.
• Relevant Experience: Minimum 4+ Years of verified industry experience in Australia or recognized overseas equivalence.
• Current unrestricted NSW Electrical Work License (A-Grade Electrician).
• Current High Voltage (HV) Switching Operator qualification with verified logbook experience.
• At least 4 years of experience working with mission-critical power systems in data centres, mining, or marine industries.
• Commitment to strict safety standards, Lockout/Tagout (LOTO) protocols, and safe work method statements (SWMS).

Core Competencies & Key Technical Proficiencies

The successful applicant will possess demonstrated capabilities across the following domain skill sets:

Salary, Compensation & Employee Benefits

At NEXTDC, we understand that our people drive our achievements. An outstanding remuneration and wellbeing package is provided in line with Australian benchmarks:

• Competitive Remuneration: AU$130,000 – AU$155,000 per year + standard Australian Superannuation (11.5%).
• Competitive salary ($130,000 – $155,000) + shift loadings + superannuation.
• Work in an elite Tier IV Uptime Institute certified hyperscale data centre facility.
• Exceptional team culture with continuous professional safety and technical training.
• Leave Entitlements: 4 weeks annual leave (with 17.5% annual leave loading where applicable) plus 10 days paid personal/carer’s leave.
• Flexible Work: Progressive work-life balance options with supportive corporate culture and leadership development pathways.

About the Employer: NEXTDC

NEXTDC operates Australia’s premier data centre network, delivering world-class power reliability and security to hyperscale cloud providers.

NEXTDC is deeply committed to building diverse, equitable, and culturally inclusive work environments. We proudly celebrate diversity and welcome applications from all qualified individuals including First Nations Australians, people with disabilities, and candidates from culturally and linguistically diverse backgrounds.

Application Process & Next Steps

Applications for this position are currently open and being reviewed on a rolling basis. Suitable candidates are encouraged to apply as early as possible before the published closing date.

Please prepare an updated Curriculum Vitae (CV) and a tailored Cover Letter highlighting your relevant experience against the key selection criteria outlined above.

To proceed with your application, click the Apply on Employer Site button to access the official NEXTDC careers gateway.