Senior Secondary Design Engineer EPC

Perform concept and detail design for secondary disciplines for a leading EPC

Company Overview

A well-established EPC organisation delivering major infrastructure projects across high-voltage (HV) transmission, substations, and renewable energy. With a strong project pipeline across Australia, the business plays a key role in supporting grid stability and the transition to renewable generation. They offer a collaborative, technically focused environment with exposure to complex, large-scale projects.
Role Details
My client is seeking a highly skilled Senior Design Engineer Secondary Systems to support the delivery of protection, control, automation, and communications design across HV and renewable energy projects. You will be involved across the full project life cycle, from concept and design through to commissioning, working closely with internal teams and external stakeholders.
Key Responsibilities

• Deliver concept and detailed secondary system designs, including studies and documentation
• Lead and participate in design reviews across protection, control, automation, and communications
• Support cross-disciplinary coordination, including HAZID, HAZOP, and safety-in-design activities
• Respond to RFIs and provide technical support to project stakeholders
• Contribute to tenders, feasibility studies, and technical investigations
• Attend and support FAT, SCAT, and commissioning activities
• Collaborate with stakeholders to deliver reliable and efficient secondary system solutions
• Assist in developing and reviewing technical specifications and standards
• Coordinate with vendors and suppliers to ensure timely delivery of equipment
• Support site inspections, construction, and commissioning phases
• Drive continuous improvement in design processes and engineering practices

Skills & Experience

• 6+ years experience in HV transmission, substations, or renewable infrastructure (Australian experience essential)
• Background working with a Network Service Provider (NSP) or EPC/contractor environment
• Strong experience in protection & control design, including:
• Fault studies and protection coordination
• Load flow and insulation coordination
• Earthing, lightning protection, and metering systems
• Relay configuration and QoSM
• Experience with SCADA and automation systems, including:
• SCADA Functional Design Specifications (FDS)
• Proficiency in AutoCAD
• Experience in testing and commissioning of secondary systems (highly regarded)
• Familiarity with SCADA protocols such as DNP3 and IEC 60870-5
• Strong communication skills with the ability to engage technical and non-technical stakeholders

Why Apply?

• Work for a reputable EPC contractor on Tier 1 projects in the energy industry.
• Industry-leading salaries
• Career development Pathway to Principal or Lead Engineer
• Excellent team culture and relaxed work environment - Flexible hours
• Work on mega scale HV projects across HV Substations, BESS, Wind, Solar, and Data Centres

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, to Connor.williams@hays.com.au

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