MOD DV Cleared Network Security Architect
Location: Basingstoke, Hampshire (Full-time onsite)
Contract: 12-Month Rolling Contract
Rate: 600- 700 per day (Outside IR35)
Clearance: Active UK MOD DV Clearance Required
The Opportunity
We are seeking an experienced MOD DV Cleared Network Security Architect to support a high-profile government programme delivering secure and resilient enterprise capabilities within a highly regulated environment.
This is an excellent opportunity for an architect with a strong background across both network and infrastructure security domains, capable of translating security requirements into robust technical designs. The successful candidate will play a pivotal role in developing security architectures, producing High-Level Designs (HLDs), conducting control mapping activities, and ensuring solutions align with MOD and government security standards.
Due to the nature of the programme, this role requires full-time onsite presence in Basingstoke and an active MOD DV clearance.
Key Responsibilities
- Develop and own High-Level Security Designs (HLDs) for complex network and infrastructure solutions.
- Define end-to-end security architectures supporting programme objectives and operational requirements.
- Produce and maintain security design documentation, architectural artefacts and technical decision records.
- Conduct security control mapping against applicable frameworks and standards.
- Translate business, operational and security requirements into pragmatic technical solutions.
- Work closely with infrastructure, network, delivery and security teams to ensure secure-by-design principles are embedded throughout delivery.
- Review existing environments and identify architectural improvements, risks and remediation activities.
- Support design governance activities including technical reviews, risk assessments and design authorities.
- Provide security guidance throughout the project lifecycle, from concept through to implementation.
- Liaise with stakeholders across engineering, programme management and customer teams to ensure alignment of security objectives.
- Contribute to accreditation and assurance activities where required.
Essential Skills & Experience
Security Architecture
- Proven experience operating as a Security Architect or Network Security Architect within secure government or defence environments.
- Strong understanding of secure architectural principles and secure-by-design methodologies.
- Demonstrable experience producing:
- High-Level Designs (HLDs)
- Security design documentation
- Architectural decision records
- Technical standards and guidance
Control Mapping & Assurance
- Hands-on experience conducting control mapping against recognised security frameworks.
- Ability to interpret security requirements and demonstrate how technical controls satisfy them.
- Experience supporting assurance, governance and accreditation activities.
- Familiarity with:
- NIST 800-53
- NCSC guidance
- MOD security policies
- JSP 440 principles
- Defence assurance processes
Network Security
- TCP/IP, routing and switching
- VLANs and segmentation
- Firewalls and security zoning
- IDS/IPS technologies
- VPN technologies
- Load balancing concepts
- Proxy technologies
- Network Access Control (NAC)
- Secure remote access
- DNS and DHCP services
- Zero Trust networking concepts