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About the Role

The Central-West Orana Renewable Energy Zone (REZ) Transmission Project is seeking a Commissioning Engineer – Secondary Systems to support the delivery of modern transmission and distribution projects. This role is responsible for the design, engineering, testing, commissioning, and integration of digital substations, protection systems, and IEC 61850-based automation solutions.

Responsibilities

Prepare protection and control philosophies, SLDs, schematics, wiring diagrams, and interlocking logic.
Configuration, testing, and commissioning of protection relays from Siemens, GE, SEL, ABB, Schneider Electric, or equivalent.
End-to-end commissioning of Transformer Protection Schemes, Busbar Protection Systems, Distance and Line Differential Protection, Feeder Protection, Breaker Failure Protection, Auto-Reclose Schemes, and Synchrocheck and Synchronizing Systems.
Hands-on experience with GOOSE messaging and Sampled Values (SV) testing and troubleshooting.
Substation Automation System (SAS) commissioning, including IED integration, HMI, gateways, RTUs, and SCADA interfaces.
Conducting Factory Acceptance Testing (FAT), Site Acceptance Testing (SAT), Point-to-Point Testing, and End-to-End Protection Testing.
Proficiency in using Omicron CMC test sets, Test Universe, IEC 61850 test tools, and network analyzers.
Network configuration, Ethernet switches, PRP/HSR redundancy protocols, GPS/PTP time synchronization, and cybersecurity compliance.
Analyze disturbances, event logs, COMTRADE files, and fault records during commissioning and energization activities.
Demonstrated experience leading substation energization, outage planning, system cutovers, and commissioning teams while maintaining safety and quality standards.
Strong understanding of utility standards, testing procedures, commissioning documentation, and final handover requirements.
Configure, test, and commission protection relays from major OEMs such as Siemens, GE, SEL, ABB, and Schneider.
Troubleshoot protection, control, SCADA, and communication systems.
Interface with clients, utilities, OEMs, and project stakeholders.
Ensure compliance with utility, regulatory, and industry standards.

Requirements

Bachelor’s degree in electrical engineering or equivalent.
5+ years of experience in protection, control, and substation automation projects.
Minimum 5 to 10 years of hands-on commissioning experience in HV/EHV substations (66kV to 500kV+).
Proven experience in commissioning IEC 61850 Digital Substations, including Station Bus and Process Bus architectures.
Strong understanding of transmission and distribution substations.
Experience with IEC 61850 engineering tools and protocols.
Knowledge of protection schemes including: Distance Protection, Differential Protection, Busbar Protection, Transformer Protection, Line Protection, and Feeder Protection.
Experience with SCADA, RTUs, and communication systems.
Proficiency in engineering and testing documentation.
Hands-on experience with digital substations and process bus implementation.
Familiarity with IEC 60870-5-104, DNP3, Modbus, and OPC protocols.
Experience with relay testing tools such as Omicron CMC and Protection Suite.
Knowledge of cybersecurity requirements for utility networks.
Experience in renewable energy grid integration projects.
Strong analytical, troubleshooting, and communication skills.

Skills

IEC 61850
GOOSE messaging
Sampled Values (SV) testing
Substation Automation System (SAS)
IED integration
HMI
RTUs
SCADA interfaces
Omicron CMC
Test Universe
IEC 61850 test tools
Network analyzers
Ethernet switches
PRP/HSR redundancy protocols
GPS/PTP time synchronization
Cybersecurity
COMTRADE files
Utility standards
Siemens protection relays
GE protection relays
SEL protection relays
ABB protection relays
Schneider Electric protection relays
IEC 60870-5-104
DNP3
Modbus
OPC protocols
Omicron Protection Suite

Location

Central West Orana Region

Work Type

Bus in, bus out
Camp style accommodation provided for 14 days onsite and 7 days off site
Roster-based arrangement

Experience Level

5+ years of experience in protection, control, and substation automation projects
Minimum 5 to 10 years of hands-on commissioning experience in HV/EHV substations (66kV to 500kV+)

Education Level

Bachelor’s degree in electrical engineering or equivalent

About the Company

ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society.
ACCIONA's workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing to the mission to design a better planet.
COBRA promotes its own efficient business model, the result of the combination of decentralization, geographical diversification and technical specialization of more than 20,000 professionals in more than 43 countries.
Cobra offers a wide range of services throughout the value chain of projects, adapted to each sector and to the scope of the contract required by clients, both public and private.
Cobra is divided into four main sectors of activity: Networks, Specialised installations, integrated projects and concession assets.
ACEREZ, a partnership of ACCIONA, COBRA and Endeavour Energy, has been appointed network operator by EnergyCo to design, build, finance, operate and maintain the Central-West Orana Renewable Energy Zone (REZ) transmission network.
The ACCIONA COBRA Joint Venture (ACJV), the design and construct (D&C) consortium, will design and build the Central-West Orana REZ transmission project.
The Central-West Orana Renewable Energy Zone (REZ) Transmission Project will build new high-capacity transmission lines, energy hubs and supporting infrastructure to transfer power generated by solar and wind projects to electricity consumers.
The new infrastructure is expected to be operational by 2028 and will initially unlock up to 4.5 gigawatts of new network capacity.
The project consists of 90km of 500kV overhead transmission lines and 150 km of 330kV transmission lines for generator connections, stretching from Elong Elong in the west through to Barigan Creek in the east, via an energy hub at Merotherie.
ACCIONA has been given the Top Employer 2022, 2023, 2024 & 2025 certification in Australia.
ACCIONA employs more than 3,000 people in its renewable energy, infrastructure and water projects across Australia & New Zealand.

Equal Opportunity

We are an Equal Opportunity Employer and promote equality and diversity.
Indigenous Australians and candidates from minority groups are encouraged to apply.