Systems Engineer in Reading
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Job Description
Systems Engineer\n\n+SC cleared role\n\n+Hybrid working 2/3 days a week in Reading\n\n+Inside IR35\n\n+£80 - £83 ph \n\nWe are seeking an experienced Senior Systems Engineer to lead the delivery of model-based Product Security digital capabilities across a complex, regulated engineering environment.\n\nReporting to the Product Owner - Systems Engineering, you will define and implement the reference architectures, toolchains and technical baselines that enable end-to-end traceability across the Digital Thread - from security objectives and threat modelling through to verification, validation and assurance evidence.\n\nThis role replaces document-centric practices with authoritative, model-based security engineering across the full product lifecycle.\n\nKey Responsibilities\n\nDeliver and continuously improve Product Security digital toolchains, including:\n\nThreat & risk modelling (STRIDE, STPA-Sec, TARA, attack trees)\n\nSecurity requirements & controls modelling\n\nSBOM & vulnerability management\n\nCryptography & key management governance\n\nConfiguration/change control\n\nVerification & validation orchestration\n\nSecurity/assurance case evidence\n\nDefine Product Security reference architecture and Digital Thread integrations\n\nOwn roadmap, backlog and delivery planning aligned to enterprise priorities\n\nEstablish governance, data standards and model quality controls\n\nLead vendor engagement, technology evaluations and service performance\n\nDrive adoption of model-centric security engineering across programmes and suppliers\n\nEnsure alignment with regulatory frameworks (DO-326A, IEC 62443, ISO/IEC 27001, ISO/SAE 21434, NIST, etc.)\n\nExperience Required\n\n10+ years delivering Product Security capabilities in aerospace, defence or other regulated/safety-critical sectors\n\nStrong understanding of model-based security engineering and Digital Thread integration\n\nExperience integrating modelling, ALM, CI/CD security services and verification pipelines\n\nProven stakeholder, supplier and budget management capability\n\nITIL and Project/Programme delivery experience (APM, PRINCE2, SAFe or similar)\n\nSC clearance
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