We are seeking a motivated Junior Overhead Line (OHL) Engineer – High Voltage Transmission to join our growing Transmission &amp; Distribution team, supporting major transmission infrastructure and energy transition projects.In this role, you will support the design and delivery of overhead transmission line systems, typically ranging from 110kV to 400kV+, contributing to projects from feasibility and concept development through detailed design and construction support.You will work as part of multidisciplinary teams delivering grid reinforcement and renewable integration projects for Transmission System Operators, utilities, and infrastructure developers, while developing your technical skills under the guidance of senior engineers.Key Responsibilities1. Transmission Line Design<ul><li>Support the design and engineering of HV/EHV overhead transmission lines, typically 110kV–400kV+.</li><li>Assist in the preparation of deliverables including route alignments, tower spotting, conductor and earth wire selection, and insulator configurations.</li><li>Support the definition of clearances, right-of-way requirements and design criteria in accordance with applicable standards.</li><li>Provide input to tower loading calculations and coordinate with structural design teams.</li><li>Assist in the development and checking of PLS-CADD models and transmission line layouts.</li></ul>2. Transmission Line Calculations and Technical Studies<ul><li>Support electrical and mechanical transmission line calculations, including:Conductor ampacity, corona and radio interferenceElectric field analysis, line impedance and shielding performanceSag–tension calculations, conductor blowout and clearance verificationLoading cases for wind, ice and temperatureTower loading trees and load combinations</li><li>Assist with coordination between electrical and structural teams for tower and foundation design.</li><li>Develop working knowledge of engineering analysis tools such as PLS-CADD and PLS-TOWER (or equivalent).</li></ul>3. Project Engineering and Multidisciplinary Coordination<ul><li>Support the engineering delivery of overhead line projects across multiple project phases.</li><li>Coordinate with structural, geotechnical, power systems and environmental teams under the direction of senior engineers.</li><li>Assist with feasibility studies, route corridor assessments and technical evaluations.</li><li>Contribute technical input to engineering deliverables, proposals and project documentation.</li></ul>4. Standards, Compliance and Quality<ul><li>Support compliance of designs with relevant standards, including IEC, IEEE, EN/British Standards and National Grid / DNO specifications.</li><li>Participate in design reviews, technical verification and internal QA processes.</li><li>Apply Company quality procedures and learn from senior engineer feedback and design reviews.</li></ul>5. Construction and Site Support<ul><li>Provide support during construction and installation activities, including tower erection, foundation works and conductor stringing operations.</li><li>Assist senior engineers in resolving site technical issues and implementing design adjustments.</li><li>Participate in site visits and inspections to develop practical understanding of overhead line construction.</li></ul>6. Technical Documentation<ul><li>Prepare engineering documentation, including calculation notes, transmission line design reports, tower spotting reports and sag–tension charts.</li><li>Assist in the preparation of technical specifications, BoQs and construction drawings.</li><li>Ensure documentation is clear, accurate and suitable for 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.

Jr. Engineer, Overhead/ Transmission HV Lines Engineer, T&D

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AECOM

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