Principal Technical Architect - Ministry of Defence - G6

  • Onyx-Conseil
  • Feb 28, 2026
Full time I.T. & Communications

Job Description

As Principal Technical Architect, you'll be the driving force behind defining and embedding architectural strategy, ensuring it's not only well crafted but consistently delivered. In this leadership role, you'll influence, engage and advise teams (engineering and architecture), making enterprise wide technology decisions that shape national capability.

With a primary focus on apps, you'll address design, development, enterprise CI/CD, tooling and product selection, overseeing delivery when required. You'll also manage the architecture and migration to cloud based providers, such as AWS, Azure and Oracle.

This is an exciting opportunity to join our team in a senior leadership position, supporting our mission to provide strategic advantage and capability for Defence, through rapid and effective software delivery, based on clear prioritisation and agile practices.

Responsibilities
  • Set technical direction and make enterprise level decisions on digital technologies, and product selections that drive integration and alignment with the overarching architectural vision and business requirements.

  • Plan and deliver a prioritised schedule of work, using agile methodologies, securing agreement from stakeholders and ensuring all technical architecture artefacts are captured and maintained, within relevant repositories.

  • Serve as a Service Assessor, evaluating internal and cross government services to ensure compliance with the service standard and alignment with architectural principles.

  • Promote re use and scalability across Defence, driving integration by default and reducing duplicate technologies, to support sustainability and value for money.

  • Lead, inspire and influence engineering and architecture teams to deliver high quality outputs, aligned with strategic priorities.

  • Role model and champion product and service delivery, using agile user centred design methodologies, helping Defence modernise its delivery practices.