Principal Electrical Engineer - Overhead Lines (OHL)

AECOM · London, , United Kingdom

  • Senior
  • Full-time
  • Posted 2026-09-22
  • Confirmed live on 25 September 2026

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Job description

Job Description
Job Description
Due to a successful period of growth, we are seeking a Principal OHL Design Engineers to join our expanding Transmission & Distribution (T&D) team within AECOM. This is a senior role within the business, with responsibility for driving technical excellence, leading complex projects, and supporting strategic client engagement across a broad portfolio of high-voltage infrastructure schemes.
You will be a trusted advisor to clients, and contribute to developing our technical standards, innovation strategy, and digital delivery approach within the cable engineering space.
This is a fantastic opportunity to contribute to some of the most exciting infrastructure and energy transition projects in the world, including National Grid’s Great Grid Upgrade.
Start here. Grow here.
Here’s what you’ll do:
In this crucial role, you will be a key member of our Transmission & Distribution team dedicated to leading and engaging with our clients to deliver technically challenging OHL design projects.

• Lead technical support in delivering overhead line design on complex multi-discipline projects.

• Be involved in large programmes of work like National Grid’s Great Grid Upgrade project.

• Write proposals, outlining all project details including the timeline, resources, budget, objectives, and goals.

• Provide technical support and input throughout the project implementation, statutory planning, and participation in public consultation events.

• Hold responsibility for assigned design activities related to the overhead line. This encompasses PLS-CADD modelling, line routing, comprehensive structural analysis and loading trees, formulation of design criteria, precise sag-tension calculations, insulator/conductor blowout, swing angle, damper system recommendations, strategic structural spotting, thorough clearance reports, and judicious conductor and insulator selection.

• Lead on feasibility studies, performing conductor thermal ratings, and ensuring compliance with industry standards and regulations.

• Conduct studies to identify a technically preferred solution/layout to present to the client.

• Originate and check engineering deliverables such as complex designs, reports, proposals, presentations, and drawing packages.

• Perform internal quality checks of engineering drawings and calculations.

• Champion mentorship, knowledge-sharing, and technical development within the wider team, supporting capability growth in cable systems engineering.

• Support business development activities, including proposals, bid reviews, and client presentations.
Enjoy the Perks.
At AECOM, you'll enjoy a range of core and personalised benefits designed to support your future and well-being, customised to fit your lifestyle. Take advantage of career development opportunities, our flexible hybrid working model to ensure a work-life balance that suits your lifestyle, technical practice networks, AECOM University, and volunteering days.

Qualifications
Qualifications
Ready to push the limits of what’s possible?
Here’s what we’re looking for:

• Professionally qualified CEng Chartered Engineer with a recognized electrical engineering institution (e.g. the IET).

• A bachelor’s degree in engineering or equivalent technical discipline, electrical engineering or power engineering.

• Experience delivering projects for transmission system operators such as National Grid, SSE and SPT in line with each operator’s standards. CDAE accreditation is highly advantageous.

• Project experience in overhead line engineering (ideally up to 400kV).

• Excellent written and verbal communication skills.
We celebrate diversity, including neurodiversity, and believe it enriches our team. We welcome applications from all backgrounds and abilities. If you are an applicant with a disability that requires reasonable accommodation to complete the application process, please contact us at [email protected]. At AECOM, we value everyone's unique contributions and perspectives.
If you meet some of the requirements above or have transferable skills you believe would benefit us, we would be delighted to hear from you!

Additional Information
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About AECOM
AECOM is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and th

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