> Markdown version of [/jobs/ext/3858822-principal-senior-technical-architect-it-platforms](https://www.wearedevelopers.com/jobs/ext/3858822-principal-senior-technical-architect-it-platforms). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Senior Technical Architect - IT Platforms - **Company:** QINETIQ LIMITED - **Location:** Ashford, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Cloud Computing, Cyber Security, Data Architecture, Interoperability, Systems Integration - **Published:** October 22, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/principal-senior-technical-architect-it-platforms/52878191 ## About the Role Engineer (CEng) or equivalent relevant experience We value difference and we don't have a fixed idea when it comes to background or education, provided you can show the required level of experience and willingness to learn then we would like to hear from you.This role is 37 hours per week based at either our Farnborough or Malvern site. Minimum, average site attendance of 3 days per week. Frequent customer travel will be required.FarnboroughAt our Farnborough site exciting work takes place at our state-of-the-art facility, with high-energy laser technologies, our 5m pressurised wind tunnel which has a simulation capability that is unique in the UK and our large research and development projects is a real hub of creativity, research and innovation. Join our talented teams of Engineers, IT & Cyber Specialists, Project Managers, Group Functions Teams and many more to provide future defences in the UK.Why Join QinetiQ?As we continue to grow into new markets around ## Description projectsProviding architectural oversight throughout the solution lifecycle, from bid and concept development to delivery and in service support Essential experience of the Principal Senior Technical Architect - IT Platforms:Extensive experience architecting secure, complex systems within defence, national security, aerospace, or similarly regulated sectorsDeep knowledge of different technologies such as - Secure networks and cross domain solutions, Cloud and Hybrid architectures, Data architectures/integration/interoperability standards, Mission systems/sensors/platform integration, and Cybersecurity/cryptographic controlsA strong understanding of MOD acquisition frameworks, security classifications, and secure by design principlesExpertise in systems engineering, enterprise architecture and model based approachesProven ability to lead multi-disciplinary teams and influence senior stakeholdersEssential qualifications for the Principal Senior Technical Architect - IT Platforms:Chartered