Principal Electrical Building Services Engineer

Company Description

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.

Job Description

AECOM is seeking a highly experienced Principal Electrical Chartered Building Services Engineer to play a leading role in the delivery of highly sensitive and classified projects across the Defence, National Security and Critical Infrastructure estate. This is a hybrid role and can be based out of our London or St Albans office. 

This role is suited to an individual with exceptional technical authority, professional credibility and discretion, capable of working on projects that require Developed Vetting (DV). You will provide electrical design leadership, technical governance and strategic oversight across complex, safety‑critical environments, acting as a trusted advisor to key public sector and defence clients.

The position sits at the forefront of AECOM’s secure programme delivery capability, combining deep technical excellence, client leadership, and multi-disciplinary coordination within a highly controlled and confidential context. 

Key Responsibilities

• Act as Principal Electrical Engineer and Technical Authority on highly classified projects
• Lead electrical design across all project stages, from concept and feasibility through to detailed design, construction support and commissioning
• Provide technical assurance, governance and independent checking of electrical designs within secure programmes
• Develop and approve electrical strategies covering:
  • LV power systems
  • Standby power and resilience (UPS, generators)
  • Earthing, bonding and lightning protection
  • Containment, lighting, small power and specialist systems
• Ensure full compliance with:
  • UK Building Regulations
  • BS standards and CIBSE guidance
  • Defence, security and classified project standards and codes
• Manage technical risk in environments with heightened safety, resilience and availability requirements
• Lead and coordinate electrical input across multi-disciplinary teams operating within secure framework
• Interface with trusted supply chain partners, contractors and specialist installer
• Review and challenge contractor designs, technical submissions and value engineering proposal
• Support construction activities including site attendance (subject to clearance), inspections, testing and commissioning strategy
• Maintain the highest standards of confidentiality, information assurance and design control
• Act as a senior client-facing technical lead, providing trusted advice to Defence, Security and Government stakeholders
• Build long-term client relationships based on technical credibility, integrity and discretion
• Support framework delivery, bid development and technical responses where authorised
• Represent AECOM in secure design reviews, governance boards and technical workshops
• Provide leadership, mentoring and technical development for engineers and technical specialists
• Undertake technical reviews and quality assurance of work produced by others
• Contribute to resource planning, capability development and succession planning within the secure sector team
• Promote a culture of technical excellence, safety, and professional integrity

 

Minimum requirements:

• Extensive experience delivering electrical building services design on complex, high‑risk or mission‑critical projects
• Proven track record working in defence, national security, nuclear, intelligence, secure government or similarly sensitive sectors
• Strong understanding of:
  • Electrical system resilience and redundancy
  • Safety‑critical and high-availability environments
  • Technical governance and assurance processes
• Experience operating at Principal or Lead Engineer level within a major consultancy
• Demonstrated ability to manage confidentiality, discretion and professional judgement

Qualifications

• Degree (or equivalent) in Electrical Engineering or Building Services Engineering
• Chartered Engineer (CEng) with IET or CIBSE
• Candidates that hold Developed Vetting (DV) clearance are preferred as the role is subject to UK security and nationality restrictions

Additional Information

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 ReasonableAccommodations@aecom.com  if you would like to apply through the Disability Confident Interview Scheme.

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