Cyber Security Architect (Any Site Location)

Company Description

Navantia UK is a new force in British industry, supporting the UK’s defence, security and energy transition ambitions. We’re doing this by creating state-of-the-art sovereign defence capabilities, investing in the UK to modernise industrial facilities, and bolstering the nation's energy security. Established in 2022, Navantia UK is a subsidiary of Navantia SA, a Spanish state-owned company with over 300 years of naval shipbuilding history. In January 2025, Navantia UK completed the acquisition of Harland & Wolff and its four historic facilities in Belfast, Appledore, Methil, and Arnish. By combining Harland & Wolff’s proud heritage and facilities with Navantia’s global expertise, Navantia UK is well-positioned to strengthen Britain’s defence, maritime and energy industrial capabilities, supporting jobs and economic growth across the UK.

Job Description

Design and maintain secure architectures that meet the evolving needs of the business while ensuring compliance with cyber frameworks and supporting strategic projects. The Security Architect will provide expert guidance on secure design principles, collaborate across teams, and lead the security lifecycle review process embedded in all projects and programmes.

 

The Role

• Develop and maintain Navantia UK IT security standards and reusable design patterns.
• Ensure alignment with compliance requirements and cyber frameworks including Def Stan 05-138, CSM v4, Secure by Design, and relevant NIST standards.
• Develop and lead the security lifecycle review process embedded in all IT projects and programmes.
• Review and approve solution designs to ensure compliance with security standards.
• Lead threat modeling and risk assessments for new and existing projects.
• Collaborate with IT and OT teams to embed security into system designs. Provide practical support and guidance on secure configurations for IT and OT systems.
• Support security audits and provide architectural evidence as required.
• Act as a visible security champion and drive adoption of secure design principles across the organization.
• Evaluate and integrate vendor security products, supporting procurement processes. Work with vendors to develop practical solutions aligned with Navantia’s evolving business and security requirements.
• Demonstrate value for money via the architectural / vendor selection processes.

Qualifications

• Strong experience in Defence or other highly regulated environments.
• Deep knowledge of security architecture principles and best practices.
• Strong experience designing secure Operational Technology (OT) networks
• Strong experience working within HMG / MoD secure environments and knowledge of relevant frameworks including Def Stan 05-138, CSM v4, and Secure by Design.
• Knowledge and application of NIST SP 800-82 Rev 3 – Guide to Operational Technology (OT) Security.
• Ability to get hands-on and produce high-level design documentation and support low-level design.
• Strong communication skills with both technical and business stakeholders.
• One or more relevant security certifications (e.g., CISSP, CISM etc.).

Additional Information

On offer

• Can be any site Methil, Belfast, Arnish, Appledore or Bristol 
• Competitive salary
• Company pension
• Life Assurance
• L&D opportunities
• Health Care Cash Plan

We are dedicated to fostering an inclusive and diverse workplace. To ensure equal opportunities for all candidates, we commit to a fair and unbiased recruitment process at every stage. This includes ensuring hiring managers are aware of legislation, providing reasonable accommodations for candidates with disabilities, and actively seeking to eliminate any form of discrimination based on race, gender, age, religion, sexual orientation, or any other protected characteristic. Our goal is to create a recruitment environment where every candidate feels valued and has an equal chance to succeed.

If you experience difficulties or are unable to apply for a role on-line please contact us at [email protected] and one of the team will be in contact to help you.

If you experience difficulties or are unable to apply for a role on-line please contact us at [email protected] and one of the team will be in contact to help you.