Network Security Architect - DV Cleared
5 days ago
Basingstoke
MOD DV Cleared Network Security Architect Location: Basingstoke, Hampshire (Full-time onsite) Contract: 12-Month Rolling Contract Rate: £700-£800 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 life cycle, 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