High Voltage Engineering Specialist

About us

Worley is a global company of energy, chemicals and resources experts headquartered in Australia. We partner with our customers to deliver projects and create value across the life of their assets. We specialize in consulting, engineering, procurement and construction across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating complexity as they meet today's needs and transition to more sustainable solutions.

High Voltage Engineering Specialist (Grid Connection & HV Systems)

Role Summary

The High Voltage Engineering Specialist is responsible for the design, integration, and compliance of high‑voltage (HV) systems and grid connection interfaces for utility‑scale energy projects (e.g. BESS, renewables).
The role ensures that all HV equipment, grid interfaces, and system studies comply with grid codes, utility requirements, and applicable standards, while supporting project execution from concept through commissioning.

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Key Responsibilities

1. Grid Connection & Compliance

• Lead development of grid connection concepts and strategies
• Ensure compliance with TSO/DSO requirements and grid codes (e.g. VDE‑AR‑N 4110/4120/4130)
• Define and review compliance evidence, simulation scope, and certification requirements
• Develop and define operational modes
• Interface with grid operators and support connection studies and approvals

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2. High Voltage System Design

• Design and review HV systems including:
  • HV substations and switchyards
  • Transformers (e.g. 380/33 kV) and auxiliary systems
  • HV cable systems and overhead line interfaces
• Develop and validate:
  • Single line diagrams (SLD)
  • Equipment specifications (switchgear, transformers, protection)
  • Electrical layouts and earthing concepts
  • Ensure integration between HV, MV, and plant systems (BESS / generation)

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3. Protection, Control & System Integration

• Define and assess:
  • Protection philosophy and relay settings
  • SCADA / PPC / EMS interfaces
• Coordinate interfaces between:
  • HV systems
  • Power Conversion System (PCS)
  • Plant control and automation systems
  • Ensure compliance with power quality, dynamic performance and grid-support requirements

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5. Construction & Commissioning Support

• Support:
  • Installation supervision for HV equipment
  • Energization procedures and commissioning activities
• Review:
  • Test procedures (FAT/SAT)
  • Grid compliance and performance tests

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Required Qualifications & Experience

Education

• Degree in Electrical Engineering, Power Systems, or equivalent

Professional Experience

• Extensive experience in:
  • High voltage systems (typically ≥110 kV)
  • Grid connection of power plants / BESS / renewables
  • Experience in grid compliance processes

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Core Technical Skills

Grid & System Expertise

• Grid code compliance (VDE, ENTSO‑E context)
• Power system studies (e.g. load flow, fault level, dynamic behavior)
• Grid connection procedures and permitting

HV Engineering

• Substations (AIS/GIS), transformers, HV cables
• Protection systems and relay coordination
• Earthing and insulation coordination

Integration Skills

• Interface to BESS / inverter‑based resources
• Understanding of:
  • PCS / inverters
  • Grid-support functions (reactive power, frequency response, blackstart)

Moving forward together

We want our people to be energized and empowered to drive sustainable impact. So, our focus is on a values-inspired culture that unlocks brilliance through belonging, connection and innovation. We're building a diverse, inclusive and respectful workplace. Creating a space where everyone feels they belong, can be themselves, and are heard.

And we're not just talking about it; we're doing it. We're reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in today's low carbon energy infrastructure and technology. Whatever your ambition, there's a path for you here.

And there's no barrier to your potential career success. Join us to broaden your horizons, explore diverse opportunities, and be part of delivering sustainable change.