At a Glance
- Tasks: Lead security architecture for AI/ML in Defence, ensuring secure design and delivery.
- Company: Join a high-profile defence programme shaping secure AI and cloud technologies.
- Benefits: Competitive daily rate, hybrid work model, and opportunity to influence security practices.
- Other info: Active SC or DV clearance needed; excellent career growth and mentoring opportunities.
- Why this job: Make a real impact on national security while working with cutting-edge technologies.
- Qualifications: Proven experience in security architecture and strong cloud security background required.
The predicted salary is between 60000 - 80000 £ per year.
Are you an experienced Security Architect looking to shape the future of secure AI and cloud technologies within the UK Defence sector? We are looking for a Security Architect to join a high-profile defence programme, leading the design and assurance of secure AI/ML solutions across multi-cloud and edge environments. This is an opportunity to play a key role in delivering innovative capabilities while ensuring security is embedded throughout the programme lifecycle.
You'll work alongside senior technical leaders, architects and engineering teams to define security strategy, influence governance and enable secure DevSecOps practices across a complex, mission-critical environment.
What You'll Be Doing
- Leading the security architecture across AI/ML development and trial programmes.
- Driving the Secure by Design approach throughout project delivery.
- Owning the end-to-end security assurance process.
- Designing secure multi-cloud and edge architectures aligned with Defence requirements.
- Defining trust boundaries, classification-aware architectures and secure cross-domain data controls.
- Developing the security roadmap covering DevSecOps, policy-as-code and secure CI/CD pipelines.
- Leading software supply chain security, including SBOMs, artefact signing and software provenance.
- Conducting threat modelling and security risk assessments.
- Chairing security working groups and collaborating with multinational stakeholders.
- Engaging with senior leadership to communicate security risks, assurance activities and programme outcomes.
- Mentoring junior security professionals and promoting security best practice across delivery teams.
What We're Looking For
- Proven experience as a Security Architect within complex enterprise or Defence environments.
- Strong background in cloud security architecture across multi-cloud and edge platforms.
- Experience implementing Secure by Design principles and DevSecOps practices.
- Expertise in:
- Threat modelling and risk management
- Policy-as-Code
- CI/CD security controls
- Software Supply Chain Security
- SBOMs, artefact signing and software provenance
- Excellent stakeholder management and communication skills.
- Previous experience working within UK Defence or other highly regulated environments.
- Experience leading technical security governance forums.
Essential Requirements
- Active SC or DV Clearance.
- Sole UK National.
- CISSP (or equivalent security certification).
- TOGAF (or equivalent architecture certification).
- Previous experience supporting Defence programmes.
Security Architect in Portsmouth employer: CBSbutler Holdings Limited trading as CBSbutler
Join a leading player in the UK Defence sector as a Security Architect, where you will have the opportunity to shape secure AI and cloud technologies while working in a collaborative and innovative environment. With a strong focus on employee growth, we offer mentorship opportunities and the chance to engage with senior leaders, ensuring that your contributions are valued and impactful. Our hybrid work model allows for flexibility, making Portsmouth an ideal location to balance professional and personal life while being part of a mission-critical programme.
Contact Details:
CBSbutler Holdings Limited trading as CBSbutler Recruitment Team
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