Principal Design Engineer - Underground Cables

  • jobr.pro
  • Sutton, Surrey
  • Jan 13, 2026
Full time Engineering

Job Description

Job Title:
  • Principal Design Engineer - Underground Cables
  • Reporting To: Head of Design - Underground Cables
  • Business Unit: Omexom Design
  • Location: Glasgow / Sutton (London) / Manchester
Purpose Of The Position

To provide technical leadership and expert-level design input for underground high-voltage (HV) and extra-high-voltage (EHV) cable systems across major infrastructure projects.

The role combines deep engineering knowledge with strategic oversight of design practices, acting as a senior authority on cable system design, compliance, and innovation.

Key Responsibilities And Duties Including But Not Limited To:
  • Act as a technical lead across HV/EHV cable system design activities, ensuring solutions are safe, robust, compliant, and cost-effective.
  • Oversee complex cable design packages (33kV and above), ensuring technical excellence across concept, feasibility, and detailed design phases.
  • Develop, own, and assist with maintaining internal design standards, methodologies, templates, and tools relevant to HV/EHV cable systems.
  • Ensure all design deliverables meet industry standards, regulatory requirements, and company best practices.
  • Perform and supervise detailed analyses including thermal, electrical, ampacity, and mechanical stress assessments using tools such as CYMCAP, ELEK, and AutoCAD.
  • Lead technical peer reviews, quality checks, and design audits to maintain a high standard of engineering output.
  • Support the development of junior engineers through guidance, feedback, and training in best practice design techniques.
  • Promote new technologies, design methods, and continuous improvement within the cable design discipline.
  • Participate in professional forums and maintain up-to-date knowledge of industry trends through organisations such as IET, CIGRÉ, and IEEE.
Governance And Stakeholder Interfaces

The Design Planner will maintain strong relationships and typically interface with:

  • Heads Of Design
  • Design Managers
  • Lead Design Engineers
  • Client Representatives
  • Supplier Representatives
  • Operations Engineers and Site Teams
  • Technical Managers
  • Internal Design Teams
Person Specification

The successful candidate will demonstrate high levels of technical competence, leadership, and a passion for delivering safe and innovative engineering solutions.

They will be able to work independently whilst enjoying being part of a friendly, ambitious, and growing team.

Essential Qualifications And Experience
  • A degree in Electrical Engineering or a related discipline; a Master's degree (MSc/MEng) is advantageous.
  • Chartered Engineer (CEng) status, or actively working towards chartership with significant relevant experience.
  • Extensive and demonstrable experience in HV/EHV underground cable system design, ideally including work at 132kV and above.
  • Strong working knowledge of cable selection, route design, installation techniques, accessories, thermal and electrical performance, and compliance standards.
  • Advanced proficiency in CYMCAP, ELEK, and AutoCAD; familiarity with additional tools such as MATLAB is beneficial.
  • Demonstrated ability to lead complex engineering calculations, simulations, and system assessments.
  • Proven experience in technical leadership, including mentoring and team development.
  • Excellent verbal and written communication skills, with the ability to convey complex technical concepts clearly and confidently.
  • Membership of professional institutions (e.g. IET, CIGRÉ, IEEE) is highly desirable.
  • Experience working in multidisciplinary project environments within the energy transmission or infrastructure sectors.
  • Knowledge of international and UK cable standards and regulatory frameworks.
  • Ability to challenge and improve existing practices through a proactive, innovation-driven mindset.
Omexom Values

Team Spirit & Generosity - Able to work effectively within and contribute to the Omexom team to deliver results, provide support, and drive performance.

Trust and Empowerment - Enjoy managing responsibilities and time to ensure work is completed efficiently and professionally.

Integrity and Responsibility - Take ownership of duties and manage them effectively to ensure efficient, high-quality results.

Innovation & Entrepreneurship - Continually strive to improve processes and introduce new initiatives to improve efficiency.