Systems & Applications Administrator — Cloud, Security & Automation

Silentium Defence Pty; Australia; Remote; AUD 85,000 - 110,000; Full time

Job summary

Silentium Defence Pty seeks an experienced Systems & Applications Administrator to join our IT team, delivering technical administration, support, and continuous improvement across systems, infrastructure, and business applications in a high-tech defence environment.

You’ll work with Microsoft 365, endpoints, servers, cloud services and enterprise applications, applying security-focused configurations and developing clear documentation for ongoing operations and projects.

Qualifications

• Relevant experience and/or tertiary qualifications in IT, computing or a related discipline.
• Demonstrated experience administering Microsoft 365 services.
• Strong experience in network configuration and management.

Responsibilities

• Administering, configuring and supporting Microsoft 365 and key business applications.
• Maintaining and improving servers, storage, networking components, backup systems and core technology platforms.
• Supporting endpoint management, device configuration and corporate mobile devices.
• Providing advanced troubleshooting for escalated issues.
• Maintaining secure system configurations and assisting with implementation of approved security controls.
• Coordinating with vendors and third-party support providers to resolve technical issues.
• Developing and maintaining system documentation, procedures, configuration records, support guides and knowledge base content.
• Identifying opportunities to automate, streamline and improve IT processes.
• Providing technical input into IT projects, planning, upgrades and continuous improvement activities.
• Sharing technical knowledge and helping promote good IT practices across the organisation.

Skills

Microsoft 365

Network configuration

Windows workstations

Linux environments

Cyber security best practice

Cloud services

Technical documentation

IT problem solving

Prioritisation

Education

Tertiary IT qualification

Tools

Windows Server

Backup software

Microsoft 365 administration tools

Job description

Silentium Defence Pty seeks an experienced Systems & Applications Administrator to join our IT team, delivering technical administration, support, and continuous improvement across systems, infrastructure, and business applications in a high-tech defence environment.

You’ll work with Microsoft 365, endpoints, servers, cloud services and enterprise applications, applying security-focused configurations and developing clear documentation for ongoing operations and projects.