Infrastructure Security Architect - DV Cleared
Security Architect - Defence/Secure Infrastructure
+ Long term contract
+ Outside IR35
+ DV Cleared
+ Hampshire based
+ Rate on application
We are seeking an experienced Security Architect to support the design, assurance and accreditation of highly secure infrastructure and network environments within a classified defence programme.
Working within a multi-disciplinary engineering team, you will define security architectures, conduct threat modelling and risk assessments, and ensure compliance with stringent security and accreditation requirements across complex IT and networked systems.
Key Skills & Experience- Proven Security Architecture experience within Defence, MOD, National Security or other highly regulated environments.
- Strong understanding of secure infrastructure, network and platform architectures.
- Experience with:
- Network segmentation and zoning
- Firewalls, IDS/IPS and boundary security controls
- PKI, encryption and key management
- Identity & Access Management (IAM/PAM)
- Secure-by-Design principles
- Threat modelling and security risk assessment
- Experience producing security architecture artefacts and supporting accreditation activities.
- Knowledge of NCSC guidance, JSP 440, Secure by Design and defence security standards.
- Security certifications such as CISSP, SABSA, TOGAF or equivalent desirable.
Please note: Due to the highly classified nature of the programme, this role requires Full time onsite attendance in Hampshire.
Reference: 3128516185
Infrastructure Security Architect - DV Cleared
Posted on Jun 25, 2026 by CBS Butler
Security Architect - Defence/Secure Infrastructure
+ Long term contract
+ Outside IR35
+ DV Cleared
+ Hampshire based
+ Rate on application
We are seeking an experienced Security Architect to support the design, assurance and accreditation of highly secure infrastructure and network environments within a classified defence programme.
Working within a multi-disciplinary engineering team, you will define security architectures, conduct threat modelling and risk assessments, and ensure compliance with stringent security and accreditation requirements across complex IT and networked systems.
Key Skills & Experience- Proven Security Architecture experience within Defence, MOD, National Security or other highly regulated environments.
- Strong understanding of secure infrastructure, network and platform architectures.
- Experience with:
- Network segmentation and zoning
- Firewalls, IDS/IPS and boundary security controls
- PKI, encryption and key management
- Identity & Access Management (IAM/PAM)
- Secure-by-Design principles
- Threat modelling and security risk assessment
- Experience producing security architecture artefacts and supporting accreditation activities.
- Knowledge of NCSC guidance, JSP 440, Secure by Design and defence security standards.
- Security certifications such as CISSP, SABSA, TOGAF or equivalent desirable.
Please note: Due to the highly classified nature of the programme, this role requires Full time onsite attendance in Hampshire.
Reference: 3128516185
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