Location: Ruislip, United Kingdom
Contract: Permanent
Working Pattern: Full-Time
Renumeration Indicator: Competitive salary plus company vehicle, pension and private healthcare. Remuneration for this role is benchmarked competitively within the Infrastructure and energy sector, and sits within our D2 band, reflecting the seniority and scope of the position.
The Opportunity
Join our Engineering Support Design team as a Senior Cable Design Engineer, where you’ll play a key role in delivering safe, compliant, and high-quality cable system designs that meet client requirements and industry standards. Working collaboratively across engineering, procurement, estimating, and operational teams, you’ll provide expert technical guidance that supports efficient project delivery, continuous improvement, and best practice across all cable-related activities.
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Deliver safe, compliant, and efficient cable system designs that meet customer requirements, technical specifications, and industry standards.
- Produce high-quality design packs and technical documentation that support successful project delivery across both design and construction phases.
- Drive cost-effective project outcomes by collaborating with cable and accessory suppliers to identify compliant and commercially competitive solutions.
- Strengthen technical excellence and safety across projects by carrying out cable rating, induced voltage, electro-mechanical force, pulling, and crossing calculations using industry-recognised software and methodologies.
- Build strong working relationships with customers, suppliers, manufacturers, and internal teams to ensure alignment, resolve technical challenges, and support best practice.
- Support continuous improvement by monitoring design progress, recommending more effective ways of working, and keeping up to date with emerging technologies and industry developments.
- Ensure accurate approval and type registration records are maintained to support compliance, quality assurance, and project readiness.
- Provide trusted technical support to colleagues, contractors, and consultants, helping deliver safe and successful installation outcomes across all cable-related activities.
Essential:
- Degree qualified in Electrical Engineering or a related discipline.
- A sound understanding of HV and EHV cable system construction, design, installation, and test and commissioning is required, together with a comprehensive knowledge of power system engineering, and a good knowledge of current power industry based electrical engineering standards and working practices.
- Working knowledge of cable rating modelling software, such as CYMCAP, ELEK, Cableizer, or other similar cable modelling software.
- Microsoft Office including Word, Excel.
- Full UK Driving licence.
Desirable:
- Working knowledge of AutoCAD and other specialised calculating and simulation software (Sketchup, Mathcad, P6).
- Membership of a professional body (IET, Cigre).
- Previous working experience with distribution or transmission network operator.
At OCU Group, we don’t just deliver infrastructure - we help power modern life.
As one of the UK’s fastest-growing utility and infrastructure businesses, we deliver complex, nationally critical projects across power, energy transition, water, telecoms, and digital infrastructure. Over the last five years, OCU has grown five-fold to a £1.1bn organisation, expanding both organically and through strategic acquisitions across the UK, Australia, New Zealand and India.
Our growth is driven by ambitious people, operational excellence, and a commitment to doing things properly. We work on projects that genuinely matter by supporting the UK’s energy transition, strengthening essential infrastructure, and helping build more sustainable communities for the future.
Whether you’re an experienced professional looking to take ownership of major projects and influence delivery at scale, or someone starting your career through an apprenticeship, graduate programme, or placement route, OCU offers real opportunity to grow, develop, and make an impact.
We are building a business where high performance, collaboration, innovation, and accountability sit at the centre of our culture. Our people are trusted to lead, encouraged to challenge thinking, and supported to continuously develop their skills and careers.
At OCU, you won’t just join a growing business, you’ll help shape it.
Our Culture & Values
At OCU, our values are at the heart of everything we do. We care about safety, lead with integrity, strive to be better every day, make a positive impact, and deliver to grow, together, as One Company United.
Our Commitment to Inclusion
At OCU Group, we believe diversity, inclusion, and belonging are fundamental to building stronger teams, better ideas, and a more successful business. We welcome applications from people of all backgrounds and are committed to creating an environment where everyone feels valued and supported.
As part of our commitment to fairness and equality, candidates may be asked to complete an equal opportunities monitoring form during the recruitment process. This information is used for monitoring purposes only and plays no part in hiring decisions.
We are proud to be a Disability Confident employer and are committed to offering interviews to candidates with disabilities or long-term health conditions who meet the essential criteria for the role.
To ensure that everyone has a fair opportunity to join our team, please inform us if you require any reasonable adjustments to our recruitment and interview process is, by emailing
[email protected].
