UML Modeller

identifi Global Resources provided pay range This range is provided by identifi Global Resources. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from identifi Global Resources Zero Trust Architecture Programme Location: Basingstoke or Corsham (onsite requirement) Duration: 12 months (with potential extension) Clearance: UKSV Developed Vetting (DV) – current and active Start Date: ASAP Overview We are looking for an experienced UML Modeller to join a major Zero Trust Architecture (ZTA) transformation programme within a secure UK Government / Defence environment. This is a mission-critical, long-term contract suited to a highly capable modeller who can translate complex systems into structured, traceable designs — ensuring alignment with Zero Trust and Security-by-Design principles. You’ll work alongside Enterprise and Security Architects to model, document, and integrate next-generation secure infrastructure components within a tightly governed engineering environment. Key Responsibilities Develop and maintain UML and SysML models supporting the design, integration, and delivery of secure system architectures. Produce detailed architecture artefacts (component, class, sequence, and activity diagrams). Collaborate with solution, network, and security architects to ensure alignment with Zero Trust principles. Maintain model integrity and traceability across multiple design layers. Support architecture reviews and governance boards, providing modelling best practices and technical guidance. Ensure all artefacts comply with MODAF, TOGAF, or NIST 800-207 frameworks and defence security standards. Work securely, following strict configuration, classification, and change control procedures. Skills & Experience Active UKSV DV clearance (current and in use). Proven experience as a UML Modeller, Systems Engineer, or Solution Designer on large-scale or classified programmes. Strong knowledge of Zero Trust Architecture (ZTA) and security-by-design concepts. Proficiency in Enterprise Architect, MagicDraw, or equivalent UML tools. Solid understanding of systems integration, data flows, and secure infrastructure design. Excellent communication and documentation skills, with the ability to produce high-quality technical artefacts. Familiarity with MODAF, TOGAF, or NATO Architecture Framework (NAF). Experience within Defence Digital, MOD, or other UK Government secure programmes. Understanding of network segmentation, IAM, and policy enforcement mechanisms (PEP/PDP). Exposure to Agile, DevSecOps, or secure systems engineering environments. Interested? If you hold active DV clearance and have a strong background in UML modelling within secure or defence environments, we’d love to hear from you. Apply today Apply today or contact us for a confidential discussion. Seniority level Mid-Senior level Employment type Contract Job function Information Technology Industries Defense and Space Manufacturing, Government Administration, and Government Relations Services #J-18808-Ljbffr