Job Title: Defence Security Architect
Location: Bristol Hybrid Working
Security Clearance: SC eligible (or willing to undergo clearance)
Are you passionate about embedding security into every stage of product development? We are looking for a proactive and skilled Security Architect to join a forward-thinking organisation committed to secure and resilient system design. This is a fantastic opportunity to influence and shape security strategies across cutting-edge products and technologies.
Role Overview
As a Security Architect, you will play a key role in designing, implementing, and overseeing security solutions to protect systems and products from emerging threats. You will work closely with development teams to apply secure-by-design principles, ensuring security is embedded throughout the product lifecycle.
Key Responsibilities
* Define and integrate security requirements into the product development lifecycle.
* Perform threat modelling, risk assessments, and implement appropriate mitigation strategies.
* Advise on solution architecture to minimise security risks and ensure compliance with security standards.
* Collaborate with product teams to ensure security best practices are adopted.
* Maintain up-to-date documentation, guidelines, and training materials.
* Support incident response activities related to security breaches.
* Communicate risk findings clearly to stakeholders including technical teams and senior management.
* Drive continuous improvement and knowledge sharing across teams.
What We’re Looking For
Technical Experience & Knowledge
* Experience with risk management frameworks and methodologies such as ISO/IEC 27001/2, ISO27005/31000, NIST 800-30, NIST 800-53.
* Strong understanding of security standards and frameworks including OWASP, Secure by Design principles, and MOD-specific guidelines (e.g., JSP, Def Stan 05-138/139).
* Familiarity with HMG security principles and assurance frameworks is advantageous.
* Comfortable using threat modelling tools and implementing mitigation strategies.
* Experience with NIST standards. (this is an absolute must)
Key Competencies
* Strong communicator with the ability to present complex information clearly and confidently.
* Proactive problem solver who approaches challenges with innovation and critical thinking.
* Highly organised with a methodical approach to planning and task management.
* Resilient under pressure, with a drive to deliver results and meet deadlines.
* A team player with a collaborative mindset and strong stakeholder engagement skills.
Why Join Us?
You’ll be part of a team where security is at the core of every decision. This role offers the opportunity to make a tangible impact across a diverse portfolio of products and systems, while working in a supportive and forward-thinking environment.
Interested?
We’d love to hear from you. Submit your CV and a short cover letter outlining your experience and motivation for applying.
Please note: All applicants must be eligible for SC security clearance.