Job Description
AgileSource are looking for an experienced Cyber Security Architect with active SC or DV clearance to join a growing cyber consultancy supporting high-profile government and defence programmes.
Security Clearance
Active SC clearance required. Active DV clearance highly desirable.
Please note that due to the nature of the projects and security requirements associated with certain client engagements, some roles may be restricted to candidates who meet specific nationality and residency criteria in line with UK government security clearance eligibility requirements. As a result, preference may be given to UK sole nationals where required by the end client.
You will play a key role in designing, assuring, and delivering secure architectures across complex enterprise environments, cloud platforms, networks, and mission-critical systems.
This is an excellent opportunity for someone who enjoys working across multiple stakeholders, influencing technical direction, and ensuring security is Embedded into every stage of solution delivery.
Key Responsibilities
* Design and develop secure technical architectures for enterprise, cloud, and hybrid environments
* Provide security architecture guidance across infrastructure, applications, networks, and data platforms
* Lead security design reviews, risk assessments, and threat modelling activities
* Ensure solutions align with government, defence, and industry security standards
* Support accreditation and assurance activities, including RMADS, JSP 440, NIST, ISO 27001, and Secure by Design principles
* Work closely with solution architects, engineers, project managers, and client stakeholders
* Identify security risks and provide pragmatic mitigation strategies
* Contribute to bid activity, technical proposals, and client presentations where required
* Maintain awareness of emerging cyber threats, vulnerabilities, and security technologies
Required Experience
* Proven experience working as a Cyber Security Architect, Security Consultant, or Technical Security Lead
* Active SC clearance is essential; DV clearance is advantageous
* Strong understanding of enterprise security architecture, security frameworks, and governance
* Experience across cloud security, particularly AWS, Azure, or Microsoft 365 environments
* Knowledge of network security, identity and access management, endpoint protection, SIEM, and zero trust principles
* Experience producing security documentation, architecture diagrams, and risk assessments
* Familiarity with government and defence security requirements
* Strong stakeholder management and communication skills
* Ability to work in highly regulated and secure environments
Desirable Skills
* CISSP, SABSA, TOGAF, CCSK, CCSP, or similar certifications
* Experience working within MOD, Home Office, central government, or defence programmes
* Knowledge of DevSecOps, container security, and secure software delivery
* Experience with security tooling such as Sentinel, Splunk, CrowdStrike, Palo Alto, or Defender
* Understanding of NCSC guidance and secure-by-design principles