Sizewell C
Nuclear Compliance Senior Lead
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Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK’s largest and most important energy projects. We are now recruiting the below position.
Position: Nuclear Compliance Senior Lead
Location: London preferred, but open to any Sizewell C location including Leiston, Ipswich, Bristol, Gloucester and Manchester – occasional travel between Sizewell C locations is required.
Contract: Permanent, full-time
Salary: Starting from £82,186 depending on experience, plus benefits
Benefits include:
- Annual Leave: 28 days per annum, increasing to 30 days after 5 years of service, plus bank holidays
- Bonus: 5% annual bonus
- Pension Contributions: Defined Contribution Pension Scheme with up to 7.5% employee contribution and 15% employer contribution
- Life Assurance: Up to 8 x salary
Closing Date: 18th September 2026
Role Overview:
Sizewell C is seeking a Nuclear Compliance Senior Lead to provide functional oversight, assurance and challenge on Nuclear Site Licence (NSL) compliance across the project.
Reporting to the Regulatory & Licensing Manager within the Safety, Security & Assurance Directorate, you will play a key role in ensuring licence conditions are correctly interpreted, embedded and delivered across the organisation. Working closely with delivery teams, contractors, partners and regulators, you'll lead assurance activities, identify emerging risks, support regulatory confidence and drive continuous improvement in nuclear safety and compliance performance. This is an excellent opportunity to influence nuclear governance at a major UK infrastructure project while providing expert regulatory insight and leadership across the business.
Role Responsibilities:
- Provide functional oversight and challenge of Nuclear Site Licence (NSL) compliance across Sizewell C, ensuring licence conditions are correctly interpreted, implemented and evidenced.
- Maintain effective engagement with the Office for Nuclear Regulation (ONR), providing evidence-based insight and supporting a proportionate regulatory relationship.
- Review and challenge nuclear safety compliance arrangements, delivery strategies and business inputs to ensure NSL requirements are embedded throughout the project lifecycle.
- Lead and continually improve the NSL assurance programme, including reviews, thematic assessments and self-assessments.
- Identify, assess and escalate compliance risks, weaknesses and emerging trends, supporting the development of effective mitigation strategies.
- Provide expert advice on regulatory expectations, industry good practice and nuclear compliance requirements to support project decision-making.
- Review contractor and partner compliance arrangements to ensure alignment with Sizewell C standards and expectations.
- Deliver coaching, mentoring and awareness activities to strengthen understanding of nuclear safety principles and NSL obligations across the project.
- Monitor and verify the completion and effectiveness of corrective actions arising from compliance findings.
- Provide regulatory and compliance insight to senior leadership, supporting continuous improvement and sustained regulatory confidence.
- Lead and manage contractors and/or Sizewell C personnel, and oversee deliverables provided by supply chain partners.
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About you:
Essential:
- Degree, HNC or HND in a Science/Engineering discipline or can demonstrate equivalent knowledge and understanding through experience.
- Proven experience of stakeholder management.
- Knowledge / awareness of ONR and EA regulatory approach (other regulatory engagement experience is welcome).
- Must be confident in own abilities and be able to deliver in a dynamic environment.
- Ability to identify key internal and external stakeholders and decision makers, to influence continuous improvement across the project.
- Strong planning, time management and communications skills.
- Able to make timely decisions within empowered boundaries.
- Proficient in the use of IT tools (e.g. Office 365).
- Able to establish and maintain effective working relationships with a diverse workforce.
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Desirable:
- Proficiency in using Power BI and SharePoint Lists for reporting purposes.
- Experience in the completion of assurance (audit / inspection) activity.
- Previous experience of working on a large construction project, preferably within the Nuclear Industry.
- Experience in developing or implementing processes / procedures for compliance with a Nuclear Site Licence.
Why Join us?
- Be part of one of the most important low-carbon energy projects in the UK.
- Work in a mission-driven environment that values innovation, integrity, and long-term sustainability.
- Competitive salary, comprehensive benefits, and opportunities for career development.
- Flexible and hybrid working options.
Key Competencies
Behavioural Competences
Humility
- Recognise the value brought from different cultures and experiences
- Be open to other’s points of view and ideas, be willing to debate and to compromise
Positivity
- Positively challenge poor quality and performance
- Identify solutions at the lowest possible level
- Encourage tier 1s and others to bring new ideas forward
Respect
- Value the rules and environment in which we operate
- Give and receive feedback with respect
- Embrace and engage with new people and ideas
Solidarity
- One team, working closely together and helping each other
- Empowered teams always looking forward
- Shared responsibility for delivering the project outcomes
Clarity
- Communicate clearly and consistently
- Promote collaboration and team alignment
- Clearer and faster decision making
- Drive simplification at all levels
If this sounds like the next step in your career, we’d love to hear from you. Apply today.
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