Principal Electrical Engineer - Substations (ROI)

Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

Here, you will have freedom to grow in a world of opportunity.

We will give you the flexibility you need to do your best work with hybrid work options or part-time working patterns available. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

Start here. Grow here.

Are you ready to join a team of talented engineers and shape the future of energy infrastructure?

Join our dynamic and multi-disciplinary Transmission & Distribution team as a primary plant focused Principal Engineer. Our Transmission & Distribution business delivers HV design for electrical power projects at transmission and distribution voltage levels. The focus of this role is primary plant design for large-scale infrastructure, grid connections, and private networks at voltage levels normally between 110 kV to 400 kV. Typical projects include feasibility, optioneering, FEED, detailed design and design assurance on existing or brand-new substations and other infrastructure.

The work can be varied and there will be a lot of opportunity for you to develop your career within this role, using your expertise to contribute to the success of major projects such as our EirGrid framework:

AECOM appointed to EirGrid engineering design, planning and project management services framework

Here’s what you’ll do:

• Primary plant layouts for HV substations
• Equipment specifications for HV Plant and associated equipment
• Providing engineering design input to major infrastructure projects
• Project Development/Pre-construction: Development of optimum cable routes considering length, thermal conditions, land use
• Development of specifications with technology specific specialists and external project partners.
• Tender evaluations, assessment and Design Assurance activities.
• Tender specification development. 
• Design assurance of tender return documentation, during tender evaluation and supplier meetings.
• Construction: Reviewing supplier technical designs. Undertaking manufacturing assurance audits, attending FAT and providing commissioning support and fault resolution support

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.

Ready to push the limits of what’s possible?

Here’s what we’re looking for:

• Degree in Electrical Engineering
• Previous experience with consultancy, contractor or utility in the energy sector
• Client experience with National Grid, ESB, EirGrid, SHET, SSE, SPT or any other transmission utility or developer in UK or Ireland
• Extensive experience as FEED designer, detailed design or owner’s engineer role
• Experience designing the HV infrastructure at concept and FEED design stages
• Experience in detailed design, design assurance and owners engineer would be advantageous
• Understanding of electrical AC HV Plant infrastructure and equipment both AIS and GIS
• Good team player and have a client-focused mindset customer facing skills
• Ability to work flexibly across multiple projects
• Full driver licence
• Ideally project management experience (incl. budget, time and quality)
• Experience of managing multi-discipline engineering projects

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!

Interested in the role or curious about life at AECOM? Follow us on LinkedIn, Facebook, Instagram, and YouTube to explore our AECOM voices, employee stories, latest projects, and much more!

For further information about the role, reach out to the recruiter on LinkedIn (Francesca Siddle).

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 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 $16.1 billion in fiscal year 2025. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM.

Freedom to Grow in a World of Opportunity 

You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation, benefits and well-being programs to meet the diverse needs of our employees and their families. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too.

Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility. As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours.

We are a Disability Confident Employer and will offer an interview to applicants who have a disability or long-term condition, who meet the minimum/essential criteria for the role. Please let us know using this email address [email protected]  if you would like to apply through the Disability Confident Interview Scheme.

All your information will be kept confidential according to EEO guidelines.