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Join the Fusion and Modular Nuclear Business Unit. 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 including single-line diagrams, load schedules, cable routing, earthing and bonding arrangements, and equipment specifications
Produce Design Documentation such as electrical calculations, protection schemes, coordination studies, panel designs, and installation drawings
Apply Nuclear Safety Requirements ensuring electrical systems support reliability, maintainability, and defense in depth
Undertake Power System Studies including load flow, fault level analysis, discrimination, and arc flash assessments
Select Electrical Equipment like LV/MV switchgear, transformers, UPS systems, motors, drives, and distribution components
Ensure Design Compliance with relevant standards such as BS EN 61508, BS 7671, IEC 60364, and nuclear site-specific requirements
Collaborate Across Teams with EC&I, control systems, mechanical, civil, and safety engineers
Support Control Systems including power supplies, segregation, EMC considerations, and environmental qualification
Engage in Design Reviews, HAZOPs, failure mode assessments, and engineering substantiation activities
Provide Support During Manufacturing & Commissioning phases, resolving electrical design issues
Requirements:
Proven electrical engineering experience in regulated, safety-critical sectors
Strong grasp of electrical distribution systems including protection principles and 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
Excellent communicator and collaborator experienced 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
Meet certain residency criteria to attain a minimum level of UK security clearance
Nice to have:
Able to use power system modelling tools like ETAP, Amtech, EasyPower or similar
Experience in nuclear new build, plant life extension, or decommissioning
Understanding of C&I power supply design, including UPS selection and battery sizing
Knowledge of EMC, lightning protection, and protective earthing schemes tailored for nuclear environments
Chartered Engineer status (or working toward it)
Experience reviewing vendor packages and conducting technical bid evaluations
What we offer:
Attractive social benefits, including an engaging Employee Committee and holiday bonuses
Ongoing training with numerous career opportunities