We are seeking an experienced Principal Overhead Line (OHL) Engineer to join our growing Transmission &amp; Distribution team, supporting major transmission infrastructure and energy transition projects. In this role, you will provide technical support in design execution and delivery of Overhead Transmission Line systems, typically ranging from 132kV to 765kV+, supporting projects from feasibility and concept development through detailed design and/or construction support. The role involves hands-on design, technical review if required, and interdisciplinary collaboration across project stages from concept to construction.Key Responsibilities  <ul><li>Execute designs and deliver engineering for HV/EHV overhead transmission lines (typically 132 kV–765kV+).</li><li>Develop key deliverables including technical calculations, conductor and earth wire selection, and insulator configurations.</li><li>Define and/or be involved in definition of clearances, right-of-way requirements, and design criteria in accordance with applicable standards.</li><li>Performing sag-tension analysis and validating clearances in accordance with relevant standards (e.g. EN 50341, NG TS 2.04).</li><li>Provide electrical technical inputs to tower loading calculations and structural design teams.</li><li>Electrical studies: ampacity, corona and radio interference, electric field analysis, line impedance, shielding angle, lightning performance, and others.</li><li>Support or lead (if required) engineering delivery of overhead line projects across multiple project phases.</li><li>Coordinate with structural, geotechnical, power systems, and environmental teams to deliver integrated solutions.</li><li>Contribute to feasibility studies, route corridor assessments, and technical evaluations to identify preferred transmission line layouts.</li><li>Provide technical input to proposals, project planning, and engineering deliverables.</li><li>Guide and coordinate CAD designers and drafters in the preparation of drawings and models.</li><li>Review and validate drawing quality, consistency, and compliance with standards ensuring timely production and revision of drawings aligned with project delivery milestones.</li><li>Ensure designs comply with relevant standards including IEC, IEEE, EN/British Standards, and National Grid or DNO specifications.</li><li>Participate in design reviews, technical verification, and internal quality assurance processes.</li><li>Prepare and review key engineering documentation such as:</li><li>Transmission line design reports and calculation notes</li><li>Tower spotting reports and sag-tension charts</li><li>Technical specifications, BoQs, and construction drawings</li><li>Documentation should support design reviews, client approvals, and project audits</li></ul>

AECOM is the world&rsquo;s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle &ndash; from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $14.4 billion in fiscal year 2023. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM.

Principal Engineer - Transmission Lines (T&D) Electrical Engineer

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About the Company

AECOM

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