Enterprise Cloud and Platform Architect

About Leidos Australia At Leidos Australia, our work goes beyond a job title. We design, build, operate and support the systems, services and capabilities that help protect and advance the Australian way of life. Backed by a global organisation of more than 40,000 people, our Australian team of around 2,000 has partnered with government, defence and national security customers for more than 30 years. We deliver mission-critical solutions where reliability, trust and purpose matter. Leidos is a destination for people who want their work to have purpose, their contribution to be recognised, and their career to grow without needing to fit a single mould. Meaningful work is supported by benefits, flexibility and career pathways that help you grow while balancing life outside work. This includes: Flex Your Way – Tailor work to your life with options including Life Days (up to 12 extra days off per year), part-time arrangements, job sharing, and compressed hours. Wellbeing That Matters – Free access to Headspace and MeQuilibrium, plus dedicated wellness spaces to support your mental, physical, and emotional wellbeing. Learn Without Limits – Access over 120,000 on-demand courses, alongside technical, project management, leadership, and professional development opportunities. Work That Makes an Impact – Contribute to nationally significant projects that matter, solve complex challenges, and accelerate your career through unique growth opportunities. Build Your Future – Whether you're deepening technical expertise or preparing for leadership, we'll invest in your development every step of the way. And Much More – These are just a few of the ways we invest in our people and help them thrive.

You’ll join a team where people work with integrity, inclusion, innovation, agility, collaboration and commitment. In practice, that means sharing ownership, solving complex problems together and staying connected to the customer context, the purpose behind the work and how each role contributes to meaningful outcomes. Defence Digital Modernisation (DDM) enables Defence through the delivery of secure, mission-critical technology services and digital transformation initiatives. Using cloud, DevSecOps, automation, cybersecurity and AI, DDM helps modernise complex environments and strengthen Defence's operational capability.

As an Enterprise Cloud and Platform Architect, you will shape the architecture, governance and evolution of enterprise hosting, cloud, virtualisation, identity and platform services supporting Defence and national security customers. Working across complex hybrid environments, you will connect technology strategy with mission outcomes and help guide significant platform modernisation initiatives. Develop enterprise cloud and infrastructure architectures, technology roadmaps, reference architectures and design patterns aligned with customer objectives. Design and govern hybrid cloud environments spanning AWS, Microsoft Azure and other cloud platforms, including landing zones, migration strategies, integration patterns and operating models. Guide the modernisation of enterprise hosting and virtualisation services, including container platforms, software-defined infrastructure and the transition from legacy technologies. Partner with customer stakeholders, engineering and service delivery teams, security specialists, technology vendors and senior leaders to facilitate architecture workshops, technical reviews, governance and assurance activities.

You bring enterprise-level cloud and platform architecture experience and can translate complex technical considerations into clear, practical direction for technical and executive audiences. You are comfortable working across architecture, engineering, security and service delivery functions to balance modernisation opportunities with operational and accreditation requirements. Essential: At least seven years’ experience in cloud and