Senior Platform Engineer, Application Management

At Leidos Australia, you'll join a team where people work with integrity, inclusion, innovation, agility, collaboration, and commitment. The Civil Digital Modernisation business delivers IT services to Australian Federal and State Government departments and agencies to accelerate digital modernisation.

The Senior Platform Engineer, Application Management is responsible for the technical management, maintenance, and continuous improvement of Commercial Off-the-Shelf (COTS) applications hosted across private cloud, public cloud, and hybrid environments.

Key Responsibilities:

• Own and coordinate the lifecycle of enterprise COTS applications, including installation, configuration, upgrades, patching, maintenance, migration, and retirement.
• Coordinate application services across database, operating system, middleware, network, storage, identity, backup, cloud, and cybersecurity teams.
• Provide technical leadership across release and change management, application maintenance, complex incident investigation, root-cause analysis, capacity and performance management, disaster recovery, and service continuity.
• Strengthen application security, reliability, and operational efficiency through vulnerability remediation, secure access practices, monitoring, observability, and automation.
• Work collaboratively with vendors, technical teams, and business stakeholders to manage dependencies, support cases, product roadmaps, and end-of-support risks.

Requirements:

• Experience managing enterprise COTS applications throughout implementation, operation, upgrades, maintenance, and retirement.
• Practical hybrid-cloud experience across private cloud, Microsoft Azure, Amazon Web Services, VMware-based environments, or comparable enterprise platforms.
• Understanding of enterprise application dependencies, including web servers, middleware, APIs, certificates, identity services, service accounts, messaging, storage, networking, DNS, and load balancing.
• Experience with automation and deployment technologies such as PowerShell, Python, Bash, Ansible, Terraform, Azure DevOps, or Git.
• Strong communication and collaboration skills, with the ability to manage competing operational and lifecycle priorities.

Benefits:

• Flex Your Way: Tailor work to your life with options including Life Days, part-time arrangements, job sharing, and compressed hours.
• Wellbeing That Matters: Free access to Headspace and MeQuilibrium, plus dedicated wellness spaces.
• 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.
• Build Your Future: Invest in your development every step of the way.