Principal Electrical Engineer

Our Vacancy# Principal Electrical Engineer
* Defence* Permanent /
* Sunderland* United Kingdom
* 22/12/25
* Hybrid work
* Share Assystem is an international company with one mission: accelerate the energy transition around the world.  Every day, our 7,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.  We are a collective committed to the actors who are making the energy switch.

Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.  Drawing on more than 55 years’ experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle.

The Group is currently ranked third in the world for nuclear engineering.  To ensure a viable, efficient, and reliable energy future for all.##

Job Description
** Your future team:
** Assystem Energy & Infrastructure Ltd (AEIL) are looking to recruit Principal / Lead and Senior Electrical Engineers, with a  demonstrable design experience in specialism in a range of systems i.e. any of Low Voltage (LV), High Voltage (HV),  and Medium Voltage (MV) and Low Voltage (LV) systems, to support the significant growth in its EC&I business.
** Your missions:
** As a Senior or Principal / Lead Electrical Engineer, you will be directly involved in our most exciting projects, across a wide range of our client portfolio projects and framework agreements.  Core responsibilties will include:  Design of LV, HV & MV distribution, protection and control systems    Switchgear design    Design substantiation and verification    Development and review of schematic drawings and single line diagrams    Development of HV/MV/LV system studies, including protection coordination, earthing, arc flash, voltage regulation, load flow and fault level reports    Detailed design covering all aspects of High and Medium voltage equipment    Detailed design of secondary control and protection systems    Specification, selection and procurement of the range of LV, HV & MV equipment    Experienced in the use of electrical design tools (eTAP or similar)    Co-ordination and management of sub-contract specialist suppliers    Delivery of design packages throughout the project lifecycle, from concept to commissioning

Assystem is one of the top 3 largest Nuclear Engineering companies. This is an exciting opportunity to progress your career and assist in the delivery of Defence design and safety engineering projects, with opportunities for further development and progression within the company. We also offer competitive benefits, including: 25 days of annual leave + bank holidays 8% company pension contributions Healthcare cash-plan to get money back on dental, medical, physical care Employee assistance programme including 24/7 access to free mental health support, virtual gym classes and more Get professional and industry membership fees paid for.
** Qualifications/Skills to be successful:
** Excellent interpersonal, communication and influencing skills    

Experience of team and technical leadership of EC&I Engineers and Designers    In-depth knowledge of Electrical Engineering within a highly regulated industry (e.g. nuclear, energy, offshore, aerospace)    Experience in the application of appropriate engineering standards    Ability to develop processes and procedures to drive continuous improvement and efficiency    Knowledge and application of European and International Standards and electrical engineering best practice    Be able to work with a high degree of independence using own initiative and motivation    Be able to demonstrate a minimum of three years previous experience in the role of Senior Engineer or a similar Staff appointment

Desirable   

Experience with naval dockyard electrical systems   

Experience with overhauling ageing equipment   

Experience of using tools for configuration management, issue management and project management    Experienced in the use of AMTECH / Trimble Pro Design   Ability to manage and work within virtual teams    Familiarity with MoD standards and procedures    Experience or interest in emerging digital technologies    Willingness and ability to spend short periods of time on customer and supplier sites at various locations    Experience in the development of quotations for new projects

Please be aware that many roles at Assystem are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation.

All applicants must as a minimum achieve Baseline Personnel Security…