Security Architect (OMNIA)

Overview Security Architect (OMNIA) role at Raytheon UK, Warminster based, hybrid working. Be at the forefront of transforming British Army training.About OMNIA Training: OMNIA brings together the UK\’s defence training organisations to transform the British Army\’s training system. We are backed by British innovation and world-class experts, and are at the heart of the UK\’s Land Industrial Strategy.The role This is more than a job — it\’s a mission. You will be part of a high-impact, collaborative environment, where we expect everyone to live the values and standards of the British Army. You will work in a matrix organisation and report operationally through the OMNIA Training Support Branch and functionally through the Raytheon UK Engineering Management team, specifically the Systems Security Engineering Group. You\’ll work with the British Army, championing innovation, and helping shape the future of military collective training. The Omnia Security Architect role requires a versatile individual who can contribute across the project lifecycle in collective training and deployed IT environments, operating in a senior technical role with customer and delivery teams, alone and unsupervised if necessary. This position supports the Collective Training Transformation Programme (CTTP), ensuring training meets the British Army\’s needs. The role concentrates on Information Assurance and Cyber Security and may also support Physical and Personnel security elements.The successful candidate should communicate effectively with technical experts and broader stakeholders, applying a holistic approach to create solutions that help the organisation achieve its goals. You must be a team player who can lead from the front and work with a multi-skilled engineering team and the customer community.Key Responsibilities Developing, contributing to and managing the security vision, security architecture specifications, threat modelling, security requirements, standards, reference architectures, security strategies and roadmapsApplying security design principles to develop security architecturesLeading security interactions with senior internal and external stakeholdersSupporting security assurance of systemsDeveloping and/or guiding the strategic direction of security projects to enable execution of the information security strategyCapturing, expanding, and analysing security requirementsDeveloping innovative security solutions to enable execution of the long-term security architectureDriving security technology evaluations and proof-of-conceptsBuilding cross-organisational relationships and influencing the architecture team and stakeholdersSupporting the security technologies lifecycleWorking with other architects to ensure security is embedded in technology domain architecturesAssisting other architects in peer reviewsEvaluating and assessing security risk as part of application and system lifecycle managementStaying current with security technologies and making value-driven recommendationsAdvising leadership on cybersecurity issues, systems, processes, products and servicesMaintaining oversight of system design and implementation to ensure appropriate security controlsServing as a cybersecurity expert to contribute to the overall system architectureWho we are looking for We\’re looking for individuals with a mission focus, collaboration mindset, and a commitment to high security and safety standards. You\’ll learn lessons and share them across the team. Military background is not required, but you should understand what it means to serve and to put the mission first.Essential Skills and Experience Self-starter with the ability to prioritise and plan complex work in a rapidly changing environmentForward-facing—experienced in talking to customers both internal and externalStrong critical thinking and problem-solving aptitudeHighly organised, discrete, outcome-focused, with a can-do attitudeEnjoys working in a fast-paced environmentAble to articulate and solve complex security problems using data and intelligenceCollaborative approach to teamwork, able to constructively challengeAbility to interpret complex business and technical requirements and identify viable solutions or controlsStrong strategic business acumen and ability to align security with business strategyAbility to communicate security risk implications to senior stakeholdersExperience managing stakeholders\’ expectations in high-risk or time-constrained environmentsLead security design and review with other Omnia architectsKnowledge of Enterprise Architecture methodologies (TOGAF, MODAF or equivalent)Understanding of formulating, recording and managing security risk and risk methodologiesSupport developing plans, estimates, task execution, project tracking, reporting, and risk mitigationExperience in developing Risk Management Framework documents and controlsUnderstanding of Secure by Design conceptsExperience with waterfall and agile methodologiesAwareness of obsolescence impacts on Information AssuranceAbility to identify new technology, security advances and risks to inform future solutionsBroad understanding of Cloud hosting/architecture for major cloud providersExperience or knowledge of DevSecOps tooling and processesWorking knowledge of MoD or Government IT Security environments and requirements at SECRET and aboveProven experience leading a small teamWillingness to travelHold a security clearance above BPSS, or ability to gain itDesirable Skills and Experience BSc Information Security or significant commercial experience in programme securityProfessional information security certifications (e.g., CISSP, CISM, CRISC, CGRC)Knowledge of Government Standard 007: Security, ISO 27001 and NISTStrong communication skills (oral, presentation and written)Experience or knowledge of Supply Chain security managementSecurity awareness and education programme experiencePassion for Information Security and continuous learningProblem management or ITIL experienceKnowledge of GEOINT, SIGINT, ACINT, MASINT, OSINT, HUMINT and related data analysisNote: Formal offers conditional upon award expected December 2025What we offer Be part of a groundbreaking mission with the UK\’s advanced defence training allianceCollaborative, inclusive environment with opportunities for growthTeam-driven work across multiple organisations in one missionOpportunity to operate across organisations with a shared goalOpportunity to drive innovation and contribute to continuous improvementShape the future of a long-term, national-defence programmeStrong benefits package and development opportunitiesOMNIA Training and its partners are proud to be an equal opportunity employer. We welcome applicants of all backgrounds and identities — what matters is your passion, your expertise, and your dedication to the mission.RTX adheres to the principles of equal employment. All qualified applications will be considered without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.Privacy Policy and Terms: Read the Policy and Terms by following the link.Seniority level Mid-Senior levelEmployment type Full-timeJob function Information TechnologyIndustries Defense and Space Manufacturing

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