Job Description
Your new company Hays are working with a leading engineering and infrastructure organisation delivering complex energy and transmission projects across Australia. With a solid national pipeline, the business plays a key role in supporting the development and modernisation of the power network. Operating across EPC and D&C; environments, the organisation delivers end-to-end solutions and offers exposure to projects from concept through to commissioning.
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Your new role As a Principal Primary Design Engineer, you will take a technical leadership role in the design and delivery of high-voltage primary systems across major infrastructure projects. You will be responsible for developing high-quality, compliant designs, resolving complex engineering challenges, and ensuring integration across multidisciplinary teams. While substation projects will form a key part of your remit, you will also be exposed to broader transmission and grid infrastructure.
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Responsibilities
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Leading the design and development of HV primary systems (typically 132kV–330kV+)
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Validating designs and resolving technical challenges to meet performance, reliability, and regulatory requirements
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Overseeing detailed design deliverables including layouts, specifications, and technical documentation
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Applying reliability, availability, and maintainability (RAM) principles to improve system performance
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Providing technical leadership and mentoring to engineering teams
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Coordinating with civil,



structural, and secondary disciplines to deliver integrated design outcomes
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Supporting system integration, requirements management, and design verification processes
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Leading the resolution of complex technical issues, balancing cost, time, and quality constraints
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Driving design optimisation, constructibility, and innovative engineering solutions
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What you'll need to succeed
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Degree in Electrical Engineering
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Extensive experience in HV primary design (220kV+ preferred)
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Strong substation and transmission project exposure
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Proven experience leading design delivery on large-scale projects
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Solid understanding of Australian standards and grid compliance
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Experience in EPC, utilities, or consultancies highly regarded
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Chartered (or working towards) highly regarded
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What you'll get in return
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Lead technical outcomes on large-scale infrastructure projects
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Influence design strategy and delivery across multiple project phases
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Competitive salary package aligned with seniority
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High level of ownership and technical influence
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Exposure to complex EPC project environments
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Work alongside experienced, high-performing engineering teams
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At Hays, we value diversity and are passionate about placing people in roles where they can flourish and succeed. We welcome applications from all backgrounds.
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📌 Principal Primary Design Engineer (New South Wales)
🏢 Rashi Joshi
📍 New South Wales