Security Architect

Security Architect
Newport, South Wales (4 days onsite / Fridays remote)
6 month contract (strong potential for extension)
Rate: Negotiable (DOE)

• ACTIVE SC Clearance is required

About the Role

A major defence organisation is seeking a Security Architect (Cyber) to play a key role in shaping, developing, and maintaining secure system architectures across mission-critical MOD programmes.
You’ll ensure all solutions align with defence and national security standards, working closely with internal engineering teams, MOD stakeholders, and security authorities to uphold the highest standards of cyber assurance.

Key Responsibilities

• Design and develop secure architectures for MOD platforms, systems, and networks.
• Align solutions with frameworks such as NIST SP 800-53, ISO 27001, JSP 440, DEF STAN 05-138, and NCSC guidance.
• Produce and maintain documentation: Security Architecture Documents, Risk Assessments, and Security Management Plans.
• Lead and support design reviews and assurance gates.
• Liaise with MOD, NCSC, and Information Assurance teams to support accreditation and assurance.
• Collaborate with engineering teams to embed security from concept through to delivery.
• Keep up to date with evolving threats and recommend effective mitigations.

Essential Skills & Experience

• Minimum 6 years’ experience in cyber security architecture within Defence, Aerospace, or Critical National Infrastructure.
• Strong understanding of MOD security frameworks (JSP 440, JSP 604, DEF STANs).
• Proven background in Secure by Design and security compliance (ISO 27001, CE/CE+).
• Experience producing security artefacts for MOD assurance.
• Working knowledge of risk management frameworks (HMG IS1/IS2, NIST RMF).
• Excellent communication skills – confident engaging with technical and non-technical stakeholders.
• Must hold ACTIVE SC Clearance – applicants without current clearance cannot be considered.

Preferred Certifications

• Certified Information Systems Security Professional (CISSP)
• Certified Information Security Manager (CISM)
• SABSA, TOGAF, or equivalent architecture certifications

If you are interested and keen to find out more, please apply with your updated CV and reach out to Tom Johnson at Certain Advantage – Ref: 79356