
Principal Cables Engineer - T&D
- Cardiff
- Permanent
- Full-time
- Lead the technical delivery of large-scale HV/EHV cable system projects from concept to completion, ensuring quality, safety, and innovation throughout the lifecycle.
- Develop and oversee HVAC and HVDC cable system designs, including routing, burial risk assessments, thermal, electromagnetic, and mechanical performance modelling.
- Provide expert-level input into cable system ratings, installation methodologies, jointing arrangements, cleating design, and system integration in challenging environments (e.g., subsea, tunnel, urban).
- Guide and validate complex calculations including ampacity, short circuit forces, EMC, induced voltages, and thermomechanical forces to meet compliance with National Grid TPs, IEC, and CIGRÉ standards.
- Lead client and stakeholder engagement, providing technical assurance, strategic direction, and value-engineered solutions on high-profile infrastructure programmes.
- Manage coordination between disciplines, including civil, structural, OHL, substation, and marine engineering inputs, to ensure cohesive and integrated design solutions.
- Drive project execution, managing technical risks, interfaces, and quality reviews while supporting procurement, construction, and commissioning phases.
- Conduct 3rd-party inspections, FAT/SAT witnessing, and vendor oversight for cable and ancillary equipment.
- 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.
- Be part of a dynamic team that tackles challenging and impactful projects.
- Work alongside industry-leading professionals and thought leaders.
- Engage in a collaborative and inclusive work environment.
- Access to continuous learning and development opportunities.
- Competitive salary and comprehensive benefits package.
- Demonstrated experience as a technical leader in HV/EHV cable system design across onshore and offshore projects, AC and DC.
- Proven track record in design, specification, and installation of complex cable systems including subsea, tunnel, urban, and constrained environments.
- In-depth understanding of international and UK-specific standards, particularly National Grid TPs, IEC, and CIGRÉ guidelines.
- Experience working in regulated, quality-assured environments-preferably with National Grid, SSE, EirGrid, or equivalent TSO/DNOs.
- Strong ability to coordinate multidisciplinary engineering teams and engage with senior stakeholders across the project lifecycle.
- Excellent communication, client-facing, and team leadership skills.
- Commitment to fostering innovation, digital delivery, and sustainability in design.
- Degree-qualified in Electrical Engineering or related field; MSc/MEng advantageous.
- Chartered Engineer (CEng) status or working towards.
- National Grid CDAE certification or similar.
- Experience with cable system software (e.g., CYMCAP, WinCable) and advanced analysis tools.
- Offshore project delivery certifications (e.g., GWO/BOSIET) beneficial but not essential.