LH-05667 - System Administrator

Clearance Required

• Must be able to obtain Positive Vetting (TSPV mandatory - ASD will not sponsor upgrades)

• Must be an Australian citizen

• Must complete ASD's Organisational Suitability Assessment (OSA)

Company Overview
We are partnering with the Australian Signals Directorate (ASD) to deliver high-calibre ICT and cyber talent into mission-critical environments. ASD is a statutory agency within the Defence portfolio, defending Australia against global threats and advancing national interests through foreign signals intelligence, cyber security, and offensive cyber operations.

Job Description
ASD is seeking an experienced System Administrator to manage and develop Cross Domain Solution (CDS) systems in support of critical national security operations. The role involves maintaining Linux infrastructure, implementing automation, monitoring systems, and ensuring availability, reliability, and security across CDS environments.

Duties and Responsibilities

• Develop solutions enabling secure interoperability between systems of different security classifications

• Research and integrate advanced security appliances, automated security mechanisms, and protocols

• Implement access controls, data segregation, and boundary protections aligned with cybersecurity best practices

• Perform integration testing of CDS systems to validate security features, interoperability, and functionality

• Use automation tools (Puppet, Ansible) to prepare and replicate system builds

• Generate reports and dashboards to demonstrate system availability across multi-geographical locations

• Conduct continuous monitoring using application management software and implement corrective solutions via Python/YAML scripting

• Validate and improve system maintenance procedures

• Monitor system performance post-implementation using Splunk and Grafana

• Engage cross-functional teams to commission and manage CDS systems

• Provide technical guidance to team members and stakeholders

Education/Certifications Required

• Demonstrated experience in CDS system administration and architecture

• Strong Linux administration skills across physical and cloud-managed infrastructure

• Familiarity with automation tools (Ansible, Puppet) and scripting languages (Python, YAML)

• Relevant industry certifications (SFIA SYSP4, DESN4, AVMT4, ASUP3, ITOP3) highly regarded

Knowledge/Skills Required

• Strong understanding of system networking, cloud infrastructure, CI/CD pipelines, and containerisation

• Ability to translate complex technical requirements into actionable solutions

• Proven problem-solving and analytical skills to manage system availability, reliability, and performance

• Experience generating dashboards, reports, and monitoring for vulnerabilities

• Excellent communication skills for stakeholder engagement

Employment Benefits

• 12-month contract with one 12-month extension option

• Opportunity to work on critical national security ICT operations

• Exposure to advanced CDS systems, cloud infrastructure, and secure environments

• Long-term career pathways within Defence and Intelligence sectors

Diversity and Inclusion
We are committed to fostering a diverse and inclusive workplace and welcome applications from candidates of all backgrounds and experiences.

Veterans
Experience in Defence or Federal Government ICT environments is highly desirable. Veterans and individuals with Defence experience are strongly encouraged to apply. Your skills and background are highly valued, and support will be provided during your transition into this role.

About Cleared
At Cleared, we provide tailored recruitment solutions to individuals seeking their next opportunity and to organisations searching for talent within Defence, Intelligence, and National Security.