Principal HV Cable System Design Engineer

Jacobs; Belfast; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A global engineering consultancy in Northern Ireland seeks a Principal HV Cable System Design Engineer to drive design delivery for complex projects up to 400kV. Ideal candidates will have a degree in Electrical Power Engineering and extensive experience in HV cable system design for both HVAC and HVDC applications. This role offers competitive benefits including family-friendly policies and a hybrid working environment to support work-life balance.

Benefits

Free single medical cover

Enhanced parental leave pay

Professional development reimbursement

Paid volunteering time

Qualifications

• Strong experience in cable-related roles supporting FEED design.
• Proven ability to manage and lead HV/EHV cable designs.
• Experience in both HVAC and HVDC systems.

Responsibilities

• Lead the design delivery for Cable System Projects up to 400kV.
• Develop specifications and technical documentation for projects.
• Ensure compliance with CDM regulations and company procedures.

Skills

Design delivery for Cable System Projects

Technical support in HV cable engineering

Calculation of cable size and rating

Experience with CYMCAP

Management of HV cable designs

Education

Degree in Electrical Power Engineering

Tools

CYMCAP

Job description

Principal HV Cable System Design Engineer

Principal HV Cable System Design Engineer Jacobs is playing a leading role in the global energy transition. As our UK and Continental Europe team continues to expand, we are seeking a Principal Cable System Engineer to support a range of high‑profile projects across our Power & Energy portfolio. This includes high voltage AIS and GIS Substations, transmission system assets, HVDC interconnectors, and energy storage systems.

Responsibilities and Qualifications

• Lead the design delivery for Cable System Projects up to 400kV, from the tendering stage through to project handover.
• Develop HV/EHV cabling systems specifications, concept/detailed design and design review, estimation, site supervision and support as required.
• Provide technical support to the team on all aspects of HV cable system engineering and design.
• Prepare plant and equipment technical specification, power cable route specifications, tender specifications, technical and progress reports.
• Ensure correct and accurate interface with other engineering functions involved in the projects, attend, and conduct internal and external meetings with colleagues, clients, and subcontractors.
• Perform technical calculations including cable size, rating calculations, TMF and EMF calculations, sheath induced voltage calculations and other.
• Perform design reviews, verification of design.
• Ensure all project designs are compliant with CDM regulations, relevant legislation and company procedures.
• Assist with temporary works design schemes.
• Maintain good working relations with client / designer / Team, together with our supply chain.
• Ensure that the drawings and specification documents contain sufficient, accurate information for construction of the works. Formally request any missing information in sufficient time to allow the programme to proceed without delay.
• Ensure that inspection and test plans are completed as required by the PMP / Specification, including a check of dimension accuracy and quality.
• Degree (or equivalent) in Electrical Power Engineering.
• Previous experience with consultancy, contractor or utility in the energy sector.
• Extensive experience in a cable related role supporting FEED design and/or detailed design.
• Able to manage and lead HV/EHV cable designs at all projects stages.
• Experienced user of CYMCAP to support cable system design.
• Experience of working at EHV transmission voltages.
• Experience in the design of HV and EHV cable systems, for both HVAC and HVDC systems.

Why Jacobs?

People are Jacobs' greatest asset, and we offer a competitive package to retain and attract the best talent. In addition to the benefits you'd expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. We also give back to our communities through our Collectively program which incorporates matched‑funding, paid volunteering time and charitable donations.

Work‑life balance and flexibility is a key focus area for Jacobs. We're happy to discuss hybrid, part‑time and flexible working hours, patterns and locations to suit you and our business.

Our Culture and Inclusion

Joining Jacobs not only connects you locally but globally. Our values stand on a foundation of safety, integrity, inclusion and belonging. We put people at the heart of our business, and we truly believe that by supporting one another through our culture of caring, we all succeed. We value positive mental health and a sense of belonging for all employees.

We aim to embed inclusion and belonging in everything we do. We know that if we are inclusive, we're more connected and creative. We accept people for who they are, and we champion the richness of different perspectives, lived experiences and backgrounds in the workplace, as a source of learning and innovation. We are committed to building vibrant communities within Jacobs, including through our Jacobs Employee Networks, Communities of Practice and our Find Your Community initiatives, allowing every employee to find connection, purpose, and belonging.

As a disability confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

We value collaboration and believe that in‑person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work.

Your application experience is important to us, and we're keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team via Careers Support.