Job Description
CROSS DOMAIN SME
RATE: £700 - £850 a dayLOCATION: Preston, LancashireDURATION: 12 Months +SECTOR: Defence & CNICLEARANCE: Active DV Required
THE OPPORTUNITYWe are working exclusively with a globally recognised prime defence contractor to identify a subject matter expert in Cross Domain Solutions (CDS) for a complex, high-assurance programme based in Preston. This is a senior, technically demanding role at the heart of a programme operating across multiple security domains and classification levels.You will provide deep technical expertise across the design, implementation, and assurance of cross domain transfer mechanisms - working closely with architects, security teams, and accreditors to ensure solutions meet the stringent requirements of a highly classified defence environment.
WHAT YOU'LL BE DOING
* Acting as the programme's technical authority on all Cross Domain Solution matters
* Defining and owning CDS architecture, design patterns, and security controls
* Leading the evaluation, selection, and integration of accredited CDS products and technologies
* Working with security architects and accreditors to achieve and maintain system accreditation
* Providing SME input to risk assessments, HMG/MOD security reviews, and technical audits
* Developing and reviewing CDS-related security documentation (RMADS, SyOps, TRA)
* Advising on data guard design, content filtering, and information flow policy enforcement
* Liaising with NCSC, DSTL, and other government bodies as required by the programme
* Supporting transition and integration activity across classification boundaries
WHAT WE'RE LOOKING FOR
* Active, current Developed Vetting (DV) clearance - non-negotiable
* Demonstrable SME-level expertise in Cross Domain Solutions within a UK defence or government environment
* Deep understanding of HMG information assurance policy, JSP 440, JSP 604, and SPF requirements
* Hands-on experience with accredited CDS products (eg Nexor, Owl, Forcepoint, or equivalent)
* Strong understanding of data guard architectures, content inspection, and policy enforcement engines
* Familiarity with MOD/DSTL accreditation and risk management processes (RMADS, ISO 27001)
* Experience producing and reviewing security case documentation for high-classification systems
* Ability to engage credibly with senior stakeholders, accreditors, and government technical authorities
* Prior experience on UK defence programmes at SECRET or above is highly desirable