Principal Electrical Engineer - Overhead Lines (OHL)

Overview

As a Principal OHL Design Engineer in AECOM’s Transmission & Distribution team, you drive technical excellence on high-voltage overhead line projects and mentor the growing cable systems engineering group. You act as a trusted advisor to clients, shaping design standards, and contributing to digital delivery and innovation strategies. You’ll work on major schemes like National Grid’s Great Grid Upgrade, delivering complex multi-discipline designs and ensuring regulatory compliance. This role offers impact across energy infrastructure and transformation initiatives.

Pay / Benefits

• career development opportunities
• flexible hybrid working
• AECOM University
• volunteering days

Responsibilities

• Lead technical delivery of overhead line design on complex multi-discipline projects
• Contribute to large programmes such as National Grid’s Great Grid Upgrade
• Write proposals detailing timelines, resources, budgets, objectives and goals
• Provide technical input through project implementation, planning and public consultation
• Own design activities related to overhead line (PLS-CADD modelling, line routing, structural analysis, sag-tension, insulator/conductor selection)
• Lead feasibility studies, conductor thermal ratings, and regulatory compliance
• Identify technically preferred solutions and present to clients
• Produce and review engineering deliverables (designs, reports, proposals, drawings)
• Perform internal quality checks of drawings and calculations
• Mentor and develop capabilities within the cable systems team
• Support business development (proposals, bid reviews, client presentations)

Key requirements

• Chartered Engineer (CEng) with a recognized electrical engineering institution (e.g., IET)
• Bachelor’s degree in engineering or equivalent in electrical/power engineering
• Experience delivering transmission system operator projects (e.g., National Grid, SSE, SPT) per operator standards
• Project experience in overhead line engineering (ideally up to 400kV)
• Excellent written and verbal communication skills

• Client engagement and presentation skills
• Mentorship and knowledge sharing
• Collaborative and cross-functional teamwork
• PLS-CADD modelling
• Overhead line design and line routing
• Structural analysis and loading trees

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