Our client, an Australian infrastructure advisory consultancy is seeking a Principal Advisor to step into a client-side Design Manager and Technical Manager roles on landmark, $1bn+ high voltage electrical infrastructure projects.
Reporting internally to a Technical Director and embedded directly into project environments, you will play a critical technical leadership role in driving the technical management, design review and integration of major high-voltage substation and transmission infrastructure.
This position offers a rare opportunity to transition into or advance within client-side infrastructure advisory, acting as a trusted technical advisor across multi-disciplinary teams, government authorities, major network operators and EPC contractors.
Key Responsibilities
Design Oversight & Management:
Manage and coordinate design reviews for high-voltage transmission line and substation assets in accordance with strict Technical Requirements, ensuring all workflows move seamlessly through delegated reviewers and approvers on schedule.
Network & Technical Interfaces:
Support the review of Network Operator (NO), EPC Contractor, generator, and storage designs, engineering specifications, and equipment standards.
System & Connection Strategy:
Assist the broader project team in resolving complex technical challenges, including system strength determinations, connection processes, and physical connection arrangements.
Sub-consultant & Delivery Management:
Oversee and guide specialist technical sub-consultants and service providers to ensure all project deliverables meet quality, schedule,



and client standards.
Governance & Stakeholder Engagement:
Represent project interests across multi-stakeholder working groups, contributing to technical briefing papers, risk registers, and governance reporting within a broader project environment.
Key Requirements
Experience:
Minimum 5 years of relevant engineering, design or construction management experience on major linear infrastructure projects.
Major Project Exposure:
Proven track record delivering major Greenfield or Brownfield infrastructure projects.
Technical Expertise:
Tertiary qualifications in Electrical Engineering (or a closely related discipline) with specific background in high-voltage substation or transmission design or construction.
Sector & Regulatory Knowledge:
Demonstrated understanding of the renewable energy sector, high-voltage networks and connections, and government planning/regulatory frameworks.
Communication & Advisory:
Exceptional stakeholder management skills with the ability to communicate complex technical decisions to executive decision-makers.
What Is on Offer
High-Impact Project:
Play a key role in shaping Australia's clean energy transition on a major high voltage electrical infrastructure projects.
Growth opportunities:
Access a clear pathway into client-side advisory with the backing of an established, highly regarded infrastructure management consultancy.
Flexibility & Culture:
Enjoy a collaborative working environment that supports hybrid office and work-from-home arrangements.
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📌 Client Side Principal/Senior Advisor - Infrastructure Advisory (Technical Manager) (Sydney)
🏢 Sirius People
📍 Sydney