This list contains only the countries for which job offers have been published in the selected language (e.g., in the French version, only job offers written in French are displayed, and in the English version, only those in English).
Assystem has an exciting opportunity for a Electrical Engineer to join our expanding Fusion and Modular Nuclear (FMN) business unit. As leaders in the design and development of new technologies, you will have the opportunity to work across multiple cutting-edge projects developing technical solutions making net-zero power generation a reality. Providing engineering expertise in the design, analysis and verification of electrical systems used across nuclear facilities. The role supports new build, operational plant upgrades and decommissioning projects. The engineer ensures electrical designs are safe, compliant and integrated effectively with control, protection and mechanical systems throughout the lifecycle.
Job Responsibility:
Develop Electrical System Designs: Design electrical systems, including single-line diagrams, load schedules, cable routing, earthing and bonding arrangements, and equipment specifications
Produce Design Documentation: Create essential design documents such as electrical calculations, protection schemes, coordination studies, panel designs, and installation drawings
Apply Nuclear Safety Requirements: Interpret and apply nuclear safety requirements, ensuring electrical systems support reliability, maintainability, and defense in depth
Undertake Power System Studies: Conduct power system studies including load flow, fault level analysis, discrimination, and arc flash assessments when required
Select Electrical Equipment: Choose appropriate electrical equipment like LV/MV switchgear, transformers, UPS systems, motors, drives, and distribution components suited for nuclear environments
Ensure Design Compliance: Ensure designs comply with relevant standards such as BS EN 61508, BS 7671, IEC 60364, and nuclear site-specific requirements
Collaborate Across Teams: Work closely with EC&I, control systems, mechanical, civil, and safety engineers to ensure seamless integration across interfaces
Support Control Systems: Support the electrical aspects of instrumentation and control systems, including power supplies, segregation, EMC considerations, and environmental qualification
Engage in Design Reviews: Participate in design reviews, HAZOPs, failure mode assessments, and engineering substantiation activities to optimize safety and performance
Provide Support During Manufacturing & Commissioning: Support manufacturing, FAT, SAT, and commissioning phases, resolving electrical design issues and ensuring traceability to requirements
Requirements:
Proven electrical engineering experience in regulated, safety-critical sectors—bringing hands-on expertise from industries like nuclear, defence, or energy
Strong grasp of electrical distribution systems—including protection principles and best-practice installation methods
Skilled in creating core electrical deliverables such as SLDs, cable calculations, equipment specs, and protection settings
Familiar with nuclear design expectations—from safety classifications and redundancy to segregation and qualification requirements
Knowledgeable in key UK and international standards, including BS 7671, IEC/BS EN, ENA docs, and more
Excellent communicator and collaborator—experienced working in multi-disciplinary project environments
BPSS and SC required
Ability to travel Assystem offices and customer sites within UK
To undertake work packages supporting major UK and international Nuclear Clients
Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level
Nice to have:
Able to use power system modelling tools like ETAP, Amtech, EasyPower or similar for accurate and efficient analysis
Experience in nuclear new build, plant life extension, or decommissioning—bringing valuable lifecycle insights
Understanding of C&I power supply design, including UPS selection and battery sizing for robust system reliability
Knowledge of EMC, lightning protection, and protective earthing schemes tailored for nuclear environments
Chartered Engineer status (or working toward it)—showcasing commitment to professional excellence
Experience reviewing vendor packages and conducting technical bid evaluations to support informed procurement decisions
What we offer:
Attractive social benefits, including an engaging Employee Committee and holiday bonuses
Ongoing training with numerous career opportunities