Security Manager Opportunity with the Civil Works Alliance (CWA), Supporting Sizewell C
As part of the CWA (Civil Works Alliance), you will support the building of Sizewell C. Sizewell C will be a 3.2-gigawatt power station generating low‑carbon electricity for around 6 million homes and will play a key role in our energy future, supplying reliable, clean electricity for at least 60 years. This role will be within the Marine and Tunnels Section.
What will you do?
We are seeking a highly skilled and experienced Security Manager to join our team at the CWA Avonmouth HUB. The successful candidate will be responsible for the development, implementation, and management of all security arrangements at the CWA Avonmouth work site, supporting the delivery of the Sizewell C project. The role ensures compliance with regulatory requirements, client expectations, and project security plans while safeguarding personnel, assets, information, and operations.
Security Strategy & Planning
* Develop and maintain the Site Security Management Plan in alignment with Sizewell C programme requirements and UK security regulations.
* Conduct site‑specific risk assessments, threat analyses, and vulnerability reviews.
* Implement proportionate mitigation measures to address identified risks.
* Ensure alignment with civil nuclear security expectations where applicable.
What are we looking for?
* Proven experience in a site‑based security management role on large infrastructure or construction projects.
* Strong knowledge of UK security regulations and risk management practices
* Experience managing security contractors and multi‑disciplinary teams.
* Demonstrated ability to operate in a high‑security or regulated environment
* Experience in nuclear, energy, or critical infrastructure projects.
* Knowledge of ONR / CPNI guidance
* Experience implementing integrated security systems
What we will offer you?
The CWA is a single delivery organisation made of up of the client (Sizewell C) and three parent companies - Balfour Beatty, Bouygues and Laing O'Rourke - which offer industry leading packages including market leading salaries, generous annual leave entitlements, pension scheme and other flexible benefits.
About Us
The CWA celebrates the creativity and innovation that comes from a diverse workforce, and we welcome applications from people of all backgrounds — especially those from under‑represented communities. Our project is built on five core values: Humility, Positivity, Respect, Solidarity, and Clarity.
By joining us, you’ll be encouraged to bring your whole self to work, speak up, and share your ideas. We encourage applications from all suitably qualified candidates, regardless of gender, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, or pregnancy and maternity.
We are committed to protecting your privacy. If you decide to apply, please avoid including sensitive personal data in your CV.
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