Infrastructure Engineer

• Provide Level 2/3 technical support and escalation across Microsoft 365, Azure and on-premises infrastructure.
• Administer and support Microsoft 365 services including Exchange Online, SharePoint Online, Teams and Entra ID.
• Manage Azure resources including virtual machines, networking, storage and identity services.
• Maintain Windows Server environments, Active Directory and Group Policy.
• Administer and support VMware and/or Hyper-V virtualisation platforms.
• Configure and troubleshoot network infrastructure including switches, routers, firewalls and VPN connectivity.
• Monitor infrastructure health, identify risks and proactively resolve performance and availability issues.
• Support cybersecurity operations by responding to security incidents, applying security best practices and assisting with threat remediation.
• Perform system patching, upgrades and vulnerability remediation across server and cloud environments.
• Manage backup and disaster recovery solutions, ensuring successful testing and recovery readiness.
• Develop and maintain PowerShell scripts to automate routine administration tasks.
• Produce and maintain technical documentation, knowledge articles and standard operating procedures.
• Collaborate with vendors and third-party providers to resolve infrastructure issues.
• Provide mentoring and technical guidance to the on-site ICT resource where required.
• Participate in after-hours support for critical incidents and planned maintenance activities.
• Contribute to infrastructure improvement projects and technology initiatives.

Infrastructure and Systems Engineer

• Develop and operate an integrated RHEL server platform supporting enterprise workloads across virtualised infrastructure
• Test and certify new versions of the RHEL operating system, build system images, and maintain image hygiene over time
• Provide integration between RHEL and VMware to deliver a cohesive, well governed virtualisation layer
• Integrate and support management and security software, tooling and configurations across the RHEL estate
• Integrate RHEL services with MFA solutions and broader enterprise identity controls
• Build and maintain server automation to streamline provisioning, configuration and deployment
• Operate backup and recovery services for virtualised RHEL systems, including regular testing of recovery procedures
• Run system health checks across hardware and software, maintain operational procedures, and contribute to availability management and disaster recovery
• Troubleshoot and resolve complex RHEL issues, and plan and deliver server migrations when required

Infrastructure Engineer, Red Hat Enterprise Linux

• You will sit inside a high performing infrastructure team supporting ASD's core systems and digital services
• The role spans the full infrastructure lifecycle, from build and integration through to sustainment and decommissioning, with a strong focus on availability, reliability and continuous improvement
• You will work across physical, virtual, networking and cloud environments, contributing both to day to day operations and to longer term design decisions that shape how the environment evolves
• Infrastructure Operations and Sustainment Monitor systems and infrastructure proactively, addressing sustainment support requests and resolving issues
• Maintain and upgrade device software and firmware versions to keep environments current and secure
• Use infrastructure management tools to assess load, performance and capacity
• Investigate operational problems and contribute to the implementation of agreed remedies and preventative measures
• Build Functional, testable and scalable systems based on Detailed Design guidelines
• Integrate COTS network hardware and software to optimise performance and functional intent
• Manage the full lifecycle of systems including build, configuration, administration, security, racking, stacking, cabling, labelling and decommissioning
• Undertake or supervise complex installations and de-installations, including handover to the client
• Availability and Continuous Improvement Analyze service and component availability, reliability, maintainability and serviceability against agreed performance targets
• Implement disaster recovery arrangements, document procedures and test recovery
• Configure tools or create scripts to automate provisioning, testing and deployment of new and changed infrastructure
• Provide feedback and proposals for improvement to inform current and future design decisions

• Join a technical team inside ASD responsible for the sustainment and growth of network infrastructure across the agency
• Support the installation, configuration and ongoing operation of LAN and WAN environments
• Contribute to monitoring and troubleshooting activities
• Help maintain reliable network operations
• Automate routine system administration tasks

Junior Infrastructure Engineer

• Ensure high availability and performance of core platforms, including hypervisors, identity services, AWS, and global infrastructure environments, with clear ownership of uptime and SLA adherence, and a strong focus on Linux
• Design, implement, and support secure infrastructure by embedding security controls across servers, endpoints, identity, and cloud platforms in alignment with organisational standards
• Modernise and standardise infrastructure, reducing technical debt and driving consistency across cloud, endpoint, and identity platforms
• Automate operational processes, including provisioning, patching, monitoring, and compliance enforcement, to reduce manual effort and improve reliability
• Maintain complete and up-to-date documentation, including architecture diagrams, runbooks, and disaster recovery procedures, to reduce key-person risk and support audit readiness
• Own complex incidents end-to-end, including troubleshooting, root cause analysis, and implementation of permanent fixes
• Deliver infrastructure components for key projects, ensuring solutions are scalable, supportable, and aligned with business and security requirements
• Manage and optimise cloud and on-premises platforms, including capacity planning, performance tuning, and cost control
• Collaborate across infrastructure, security, network, and development teams, acting as a senior technical authority and contributing to cross-domain initiatives
• Drive continuous improvement across infrastructure operations, increasing efficiency, resilience, and service quality
• Proactively identify and remediate single points of failure, strengthening overall environmental resilience
• Deploy and manage infrastructure across public and private cloud platforms (including hyper-converged infrastructure), various Linux distributions, Entra ID, corporate datacentre compute and storage, and AWS cloud services
• Work with the DevOps team on Infrastructure as Code (IaC) initiatives
• Administer and harden Active Directory, Entra ID, and authentication systems
• Maintain accurate and comprehensive technical documentation, including infrastructure diagrams, system configurations, and procedures
• Ensure infrastructure is audit-ready through version-controlled documentation and adherence to change management practices
• Drive automation, efficiency, and system hardening initiatives to improve service delivery and reduce operational risk
• Research and implement emerging technologies aligned with business growth and security strategies
• Act as 2IC for Infrastructure, stepping in when the Infrastructure Lead is unavailable
• Lead and participate in day-to-day operational management, including monitoring, incident response, and service restoration
• Participate in the after-hours on-call rotation

Infrastructure Engineer jobs in Australia

See all jobs on JobTailor

Infrastructure and Systems Engineer

Infrastructure Engineer, Red Hat Enterprise Linux

Infrastructure Engineer

Junior Infrastructure Engineer

Senior Infrastructure Engineer – Linux