EC&I Engineer
Confirmed on the employer's own hiring board on Oct 24, 2026. First seen by Alion on Oct 6, 2026. Assystem scores B on the Alion truth index.
Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.
Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.
Join the Fusion and Modular Nuclear Business Unit! Provide technical expertise across the lifecycle of Electrical Systems for the SMR nuclear power plant. This covers the delivery of the complete design of the Electrical systems, spanning system architecture, sub-system design and equipment specification and design / selection to realise the final verified design of the power station. You will do this by working closely with the engineering teams from across the power station and applying a structured systems engineering approach to design.
Your mission:
- Reviews and agrees high level electrical requirements including their testability.
- Analyses and translates high level requirements into a validated design for the electrical system/component.
- Captures applicable design constraints (must meet conditions) and quality attributes (may be traded) that apply to the system/component.
- Captures requirements/constraints in line with the project’s processes for management of interfaces and requirements (e.g., requirements captured in IBM DOORS).
- Designs and implements electrical designs to meet design inputs.
- Works with the Verification team to define verification activities.
- Analyses electrical designs for functional behaviour, which may include modelling and simulation to demonstrate that the design meets the high-level requirements. Develops and reviews electrical tests that will provide evidence to demonstrate that the electrical requirements have been satisfied.
- Participates in and supports capacity planning and the development of long-term strategic goals for the team, in conjunction with managers.
- Identifies and mitigates risks.
- Develops, implements, documents, and maintains policies, procedures, associated guidelines, tools, and training as required.
- Develops the knowledge required to provide advice / support to project teams and / or integrated product teams (IPT).
- Represents the electrical engineering area in meetings, working groups and integrated project teams as assigned.
- Works across the power station engineering teams, where required, to deliver standardisation and a commoditised approach to system and component development.
- Ensures that quality is maintained throughout the SMR project lifecycle by undertaking appropriate technical reviews and providing the required electrical engineering inputs to the project technical review gates.
- Discusses the electrical system design with external organisations including the nuclear safety regulator, potential customers, and suppliers.
Why Join the Community of Switchers?
- Over 55 years in nuclear engineering.
- Ranked among the top 3 largest nuclear engineering companies.
- Attractive social benefits, including an engaging Employee Committee and holiday bonuses.
- Ongoing training with numerous career opportunities.
- 70% of our managers are promoted internally!
- Hybrid work: 1-2 days remote per week.
- Hold a degree level qualification in electrical engineering or a related subject.
- Experienced in working in a highly regulated industry
- Ability to travel Assystem offices and customer sites within UK.
- BPSS and SC required
Due to the nature of the work, applicants must meet UK security clearance criteria.
Ready to make a difference in the nuclear engineering world? Join us and be a part of the future of nuclear and fusion innovation!
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We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.