Security Arcitect Location: Bristol, UKClearance Required: Must be eligible for SC ClearanceAre you passionate about safeguarding advanced products and systems from ever-evolving security threats? We are seeking a highly skilled Security Architect to join our cutting-edge team in Bristol. In this role, you''ll be instrumental in securing the software development lifecycle for complex systems within the defence and national security domain.This position is critical to ensuring our products meet the highest standards of security by design. The successful candidate will be expected to bring deep, hands-on experience with NIST cybersecurity standards-this is essential-as well as a strong working knowledge of Defence Standards DefStan 05-138 Issue 3 and DefStan 05-139 Issue 1. If you''re an experienced professional with strong capabilities in threat modelling, risk assessment, and secure systems architecture, we want to hear from you.Role Responsibilities:Integrate security controls throughout the product development lifecycleConduct detailed threat modelling and risk assessments using recognised toolsLead the implementation of risk management strategies based on industry best practices (NIST, ISO)Work closely with development teams to ensure secure-by-design principles are followedIdentify and propose mitigations for security vulnerabilities in solution architecturesMaintain and evolve internal security policies, documentation, and awareness trainingSupport incident response eff