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Senior HV Electrical Engineer – Grid Connections

Location: Dublin / Hybrid
Contract: Permanent

Overview

We are seeking a Senior HV Electrical Engineer to join our Dublin‑based Power team, working specifically on electricity grid connection projects across Ireland. This role plays a critical part in connecting large demand customers and generation assets to the Irish transmission and distribution networks, supporting Ireland’s energy transition and infrastructure growth.

You will work closely with EirGrid, ESB Networks, developers, and major clients on complex HV grid connection schemes, from early feasibility through to energisation.

The Role

Reporting to the Principal Engineer – Power, you will act as a technical lead on Irish grid connection projects across the full lifecycle.

Key responsibilities include:

• Leading and delivering HV grid connection designs for transmission and distribution networks in Ireland
• Acting as Owner’s Engineer for contestable works packages relating to grid connections
• Technical review of HV plant and substation elements, including:
  • Substation layout and access
  • Earthing systems and earthing risk assessments
  • Interlocking philosophies
  • Busbar sizing and calculations
  • Primary plant specifications
• Reviewing contractor detailed designs for compliance with:
  • EirGrid Functional Specifications
  • ESB Networks design standards
  • Outline design and connection offers
• Producing and reviewing contestable works documentation, including:
  • Single Line Diagrams (SLDs)
  • Schematics and interlocking diagrams
  • Substation layout drawings
• Providing technical expertise on:
  • HV substations (AIS / GIS)
  • HV cable systems (110kV and above)
  • Interface points between customer installations and the grid
• Supporting grid application processes, technical queries, and engagement with EirGrid and ESB Networks
• Input into feasibility studies, connection strategy, and optioneering
• Supporting site activities including construction monitoring, testing, and commissioning
• Contributing to tendering and technical bid submissions for grid connection projects

About You

Essential:

• Degree‑qualified in Electrical Engineering (or equivalent)
• Chartered Engineer or actively pursuing chartership
• Strong experience delivering HV grid connection projects in Ireland
• Proven knowledge of EirGrid and ESB Networks standards, specifications, and approval processes
• Experience with HV substation design in the 110kV–400kV range
• Ability to lead technical workstreams and interface with multiple stakeholders
• Strong written and verbal communication skills

Desirable (but not essential)

• AIS and GIS substation specification and design
• HV cable system design (≥110kV)
• Overhead line (OHL) exposure for grid connections
• Site‑based construction or commissioning experience
• Experience with:
  • CDEGS (earthing studies)
  • ETAP or similar for system studies / protection coordination
• Control and protection systems design
• Master’s degree in Electrical Engineering

Why This Role?

• Work at the centre of Ireland’s power grid expansion and decarbonisation
• Direct involvement with EirGrid and ESB Networks projects
• Long‑term, technically challenging grid connection work
• Clear progression toward Principal Engineer level