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 us as a Senior Protection & Control Engineer and take a leading role in delivering safe, reliable HV and EHV substation protection systems that keep the UK’s electricity network running. Working within a DNO framework, you’ll design and deliver compliant protection and control schemes across 11kV to 132kV projects, collaborating across multi-disciplinary teams to support critical infrastructure from new builds through to upgrades and reinforcements.
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Deliver safe, reliable protection and control designs that ensure HV and EHV networks operate effectively under all fault and operational conditions.
- Drive compliance and design quality by producing and reviewing protection schemes, including single-line diagrams, schematics, wiring diagrams, and control philosophies in line with DNO and industry standards.
- Improve system safety and performance by undertaking protection studies, fault level assessments, and defining accurate protection settings for approval and implementation.
- Enable fully integrated engineering solutions by collaborating closely with primary, civil, and control system engineers to ensure coordinated and buildable designs.
- Strengthen technical assurance and operational readiness by leading design reviews, supporting commissioning activities, and ensuring systems perform as intended in service.
- Reduce delivery risk and improve efficiency by managing and reviewing outputs from third-party designers and ensuring all deliverables meet required standards.
- Support continuous improvement in protection and control engineering by enhancing design practices, sharing expertise, and contributing to technical governance across projects.
Essential:
- Bachelor’s degree in electrical or electronic engineering (or equivalent).
- Proven experience in protection and control design for HV and EHV substations, ideally in a DNO or ICP environment.
- Sound knowledge of relays, SCADA, RTUs, and communication protocols
- Experience performing relay settings calculations, coordination studies and using relevant
- Strong understanding of high-voltage system protection principles and safety considerations.
- Clear communicator with the ability to explain complex control systems to non-specialists.
- Attention to detail in producing and checking protection schematics and logic diagrams.
- Able to work independently and collaboratively in a multi-disciplinary team environment.
- Capable of managing time and priorities effectively in a fast-paced delivery setting.
Desirable:
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Chartered Engineer (CEng) status or actively working towards chartership.
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].
