Senior T&D Manager - Primary High Voltage Substation

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We are seeking an experienced Sr. T&D Manager (Discipline Director level) – Primary Substations to join our growing Transmission & Distribution team, providing technical leadership for the delivery of high-voltage substation infrastructure projects.

In this role, you will act as the technical authority for primary substation engineering, providing strategic oversight and technical governance across HV and EHV substation projects, including AIS and GIS substations within transmission and distribution networks.

You will guide engineering teams and technical leads through all project phases, from concept and feasibility through FEED, detailed design, construction, and commissioning, ensuring safe, reliable, and efficient engineering solutions while maintaining high technical standards across the organization.

You will work closely with project leadership, multidisciplinary engineering teams, and clients, contributing to major grid reinforcement, renewable integration, and large-scale infrastructure programs.

Key Responsibilities

Technical Leadership & Engineering Authority

• Act as technical authority for primary substation engineering, providing strategic direction and technical leadership across projects.
• Provide oversight and technical guidance for the design of HV/EHV primary systems, including AIS/GIS substations, equipment layouts, busbar schemes, and HV cable interfaces.
• Define engineering strategies and technical approaches aligned with industry standards, client specifications, and network requirements.
• Oversee the development and review of critical primary engineering deliverables, including:
o Substation general arrangements, equipment layouts, and specifications
o Busbar configurations, calculations, and conductor sizing
o Electrical clearances, insulation coordination, and short-circuit studies
o Lightning protection and shielding concepts
o Earthing and grounding system design
• Provide high-level technical guidance on the integration of HV equipment such as circuit breakers, disconnectors, instrument transformers, surge arresters, power transformers, and reactive compensation equipment.

• Ensure technical consistency, quality, and compliance across substation engineering projects.
• Lead technical design reviews and engineering assurance processes, ensuring alignment with project requirements and international standards.
 

Project Oversight & Multidisciplinary Coordination

• Provide technical oversight across major infrastructure and substation programs, supporting project leadership teams in defining engineering strategies and delivery approaches.
• Ensure effective coordination between primary, secondary, civil, structural, system studies, and commissioning disciplines.
• Act as senior technical interface with clients, contractors, equipment suppliers, and project stakeholders.
• Support development of technical proposals, engineering strategies, and major project bids.

Construction & Commissioning Support

• Provide senior technical guidance during construction, installation, testing, and commissioning of HV substation projects.
• Support resolution of complex technical issues, design deviations, and site queries during project execution.
• Ensure that implemented designs comply with technical specifications, safety standards, and project requirements.

Engineering Leadership & Team Development

• Lead and develop teams of primary substation engineers and technical specialists, providing mentorship and technical guidance.
• Support the growth and development of engineering capabilities within the organization.
• Promote a culture of technical excellence, knowledge sharing, and continuous improvement.
• Coordinate engineering resources across projects to ensure efficient delivery and consistent technical quality.

Education

• Bachelor’s degree in Electrical Engineering

Experience

• Typically 15-20+ years of experience in HV primary substation engineering
• Proven experience delivering large transmission or distribution substation projects across multiple phases (concept, FEED, detailed design, construction support)
• Demonstrated experience providing technical leadership and governance across engineering teams
• Experience supporting major infrastructure programs and multidisciplinary project delivery

Technical Skills

Strong expertise in:

• HV/EHV substation design (AIS/GIS)
• Busbar configurations and substation equipment layouts
• Insulation coordination and electrical clearances
• Short-circuit calculations and equipment rating verification
• Busbar and conductor sizing (thermal and short-circuit withstand)
• Mechanical and electrodynamic force calculations for conductors
• Integration of HV equipment, cables, and overhead lines
• Earthing and grounding system design
• Lightning protection and shielding studies
• Transformer integration and reactive power compensation systems
• Technical design reviews and engineering governance

Experience with engineering tools such as:

• CDEGS
• CYMCAP
• Revit
• AutoCAD or similar design software

Leadership & Soft Skills

• Strong technical leadership and engineering governance capabilities
• Experience managing engineering teams and multidisciplinary technical delivery
• Strategic thinking and complex technical decision-making abilities
• Excellent client engagement and stakeholder communication skills
• Ability to maintain high technical standards across projects and teams

Nice to Have

• Experience working on UK transmission or distribution substation projects
• Exposure to National Grid standards and technical specifications
• Experience with EHV substations (220kV–400kV)
• Chartered Engineer (CEng) or equivalent professional certification
• Experience supporting construction, commissioning, or site engineering activities

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community - where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.