Site 400kV SAP – HV Service
Position: Full‑time, Permanent.
Location: United Kingdom, Home Based with travel to sites.
The Role
We are seeking a Site 400kV Senior Authorised Person to join us and ensure the safe operation, maintenance, and compliance of high‑voltage electrical systems up to 400kV within the onshore renewables sector. Acting as a technical expert, you will provide guidance, operational support and safety leadership, working closely with Operations and Project Management to implement robust HV safety processes. The ideal candidate will have extensive hands‑on experience as an Authorised Person on 400kV systems, strong knowledge of electrical operations and safety management. This is a critical role in maintaining operational excellence and promoting a culture of safety across all sites.
What You’ll Be Doing
* Provide technical oversight of HV service activities, ensuring efficient planning, execution, and high‑quality reporting.
* Support the Lead 400kV SAP with new site connections and first energisation, including site visits, technical documentation and pre‑energisation checks.
* Ensure compliance with technical requirements, escalates risks, and produces reports on asset condition and performance.
* Champion HSEQ standards on‑site, driving safety improvements and collaborating with project teams for safe execution of HV work.
* Perform SAP duties up to 400kV, including outage planning, switching and safety documentation; liaise with control centres and operators.
* Act as Authorising Engineer when required and mentor SAPs progressing toward authorisation.
* Lead customer engagement through meetings and communications, supporting commercial oversight, cost management and budgeting.
What We’re Looking For
* Hands‑on experience as a Senior Authorised Person on 400kV systems, particularly in grid connections and commissioning.
* Significant practical experience performing SAP duties on 400kV systems.
* In‑depth knowledge of HV safety standards and UK Electricity at Work Regulations.
* Strong problem‑solving and analytical skills.
* Excellent communication skills with the ability to manage client relationships and lead technical discussions.
* Comfortable producing formal reports and documentation.
* Proven track record in HSEQ compliance and operational excellence.
* Degree in Electrical Engineering or equivalent preferred.
Why Join Us?
* Competitive salary and benefits package aligned with experience (Private Medical Insurance, Company Pension, Life Assurance, etc.).
* Clear pathways for career development and organisational visibility.
* Inclusive and supportive culture that values individual contributions.
* Meaningful work with impact across safety, innovation and global operations.
About James Fisher
James Fisher is a global engineering services company with over 50 years of experience delivering complex offshore energy projects in some of the world’s most challenging environments. We operate across Energy, Defence and Maritime Transport, leveraging cutting‑edge technology and deep expertise to support the full lifecycle of our customers’ assets. In the Energy Division we provide safe, efficient solutions across oil & gas and renewables – from well support and full‑field decommissioning to integrated services for offshore wind and expert subsea inspection, repair and maintenance. Our work helps operators extend asset life, reduce downtime and respond rapidly to operational challenges, driving the global shift toward a cleaner, more sustainable future.
James Fisher & Sons are committed to taking positive action on diversity and strongly encourage applications for candidates from all backgrounds. We are proud to be a Disability Confident employer and recognise that our success depends on our talented and diverse workforce.
Due to the high volume of applications, vacancies may close before the deadline. We encourage you to apply early to avoid disappointment.
If this sounds like the ideal next step in your career, click ‘apply’ now!
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