Infrastructure Security Architect

Salary

Salary: £? - ? per year

• 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.
• Experience with firewalls, IDS/IPS and boundary security controls.
• Experience with PKI, encryption and key management.
• Experience with Identity & Access Management (IAM/PAM).
• Experience with Secure-by-Design principles.
• Experience with 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.

• Support the design, assurance and accreditation of highly secure infrastructure and network environments within a classified defence programme.
• Work within a multi-disciplinary engineering team.
• Define security architectures.
• Conduct threat modelling and risk assessments.
• Ensure compliance with stringent security and accreditation requirements across complex IT and networked systems.

• Architect
• IAM
• Support
• JSP
• Network
• Security
• TOGAF

We are offering a long-term contract role outside IR35 for a DV cleared Security Architect based in Hampshire. This is a highly classified programme requiring full-time onsite attendance. We are seeking an experienced professional to help shape and assure secure infrastructure and network environments within our defence programme, working alongside a multi-disciplinary engineering team.

last updated 26 week of 2026