About the Role We are seeking a Senior Linux Administrator to join a collaborative and high-performing Digital Research Infrastructure team. In this role, you will play a critical part in delivering secure, high-quality Linux services and support for complex research environments. You will help drive innovation, manage workloads, and deliver hands-on system administration in a unique and security-focused landscape.
This is an exciting opportunity for a seasoned Linux professional to work in a highly secure, technically challenging environment supporting advanced scientific research infrastructure.

About You You are a proactive and experienced Linux professional with a strong background in secure system administration. You thrive in collaborative, research-driven environments and are skilled at managing workloads while maintaining high service standards.

Key Responsibilities

• Lead the design and enhancement of Linux services aligned with enterprise architecture and technology roadmaps.
• Deliver day-to-day operational support for Linux-based systems.
• Oversee the tasking and workload of team members and ensure timely delivery of system changes.
• Provide in-depth system administration and support for complex Linux research systems, including virtualisation via on-premise cloud infrastructure.
• Manage Linux security initiatives, including vulnerability management, monitoring, and incident response in a research-specific threat environment.
• Maintain, patch, upgrade, and manage Linux operating systems and associated infrastructure.
• Ensure best practices in change and configuration management are upheld.

Essential Criteria To be considered, you must demonstrate:

• Advanced scripting capabilities in at least one of: Bash, Perl, or Python.
• Strong administration skills in CentOS/RedHat Linux environments.
• Experience developing web interfaces that connect to Linux-based backends.
• Demonstrated experience with Ansible for configuration management.
• Working knowledge of PKI/Certificate systems, particularly in a Network Access Control (NAC) context.
• Hands-on experience implementing Multi-Factor Authentication (MFA) on Linux platforms.
• Linux certification (any type) is essential.

Work Environment

• Edinburgh, SA (preferred due to available workspace), or
• Fishermans Bend, VIC (limited space, considered for the right candidate).

• Onsite work is mandatory. Service delivery must be conducted at either:
  

Due to the nature of the role candidates holding an active NV2 clearance will be prefered.

Apply directly or for more information on this role, please contact Josh Campbell and email your resume to [email protected] for consideration.

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www.calleo.com.au

Calleo is an equal opportunity employer and we encourage applications from all people including Aboriginal and Torres Strait Islander peoples.