Cyber Security Systems Administrator
Location
ACT
Working Arrangement
Onsite within secure environments.
Clearance Required
Minimum NV2 required
Company Overview
Cleared has partnered with an advanced radar, sensor and defence provider for Australia's national security.
The Cyber Security team maintains secure, resilient platforms and tooling that protect internal systems, networks and operational environments.
This role supports the day?
to?
day operation of core cyber security platforms and contributes to the organisation's security posture across Windows, Linux, virtualisation and containerised environments.
Job Description
We are seeking a Cyber Security Systems Administrator to administer, maintain and harden the platforms hosting cyber security capability.
The role manages core security tooling, underlying infrastructure and operating systems, ensuring compliance with ISM, Essential Eight ML3 and NIST requirements.
You will work across Windows, Linux, virtualisation and container platforms, supporting security investigations, operational activities and Authority to Operate processes.
Administer, maintain, patch and upgrade core security toolsets including vulnerability scanning, SIEM, endpoint protection, application control and privileged access management
Administer virtualisation platforms including cluster health, capacity, VM lifecycle, storage, backup and updates
Administer container platforms including node health, workload deployment, upgrades and registry management
Tune and configure security tooling to balance security efficacy and system performance
Build, harden and maintain Windows and Linux systems underpinning security tooling
Apply OS and application hardening aligned to ISM, Essential Eight ML3 and NIST SP?
*****
Administer Privileged Access Management solutions including enrolment, roles, policies and session recording
Enforce tiered administration and least privilege for security tool administration
Develop configuration, hardening,



operational and as built documentation
Provide SME input into ATO activities and security assessments
Support security investigations and incidents including data retrieval, queries and containment actions
Operate within formal change management processes
Education/Certifications Required
Bachelor degree or relevant industry certifications
Desirable certifications: RHCSA/RHCE, Security+, Microsoft or vendor certifications
Knowledge/Skills Required
Demonstrated Windows Server and RHEL administration in a security context
Hands on experience with tools such as Nessus, Elastic, Trellix, Airlock Digital or Teleport
Working knowledge of Nutanix and/or OpenShift
Experience with Infrastructure as Code tools such as Puppet, Ansible and Terraform
Experience with container orchestration platforms such as Docker and Kubernetes
Familiarity with security frameworks including ISM, DSPF, NIST and ISO *****
Understanding of incident response best practices
Desirable experience with Arista and Palo Alto Networks
Key Challenges
Managing competing priorities in a dynamic technical workplace
Maintaining strong stakeholder relationships across IT Operations, Cyber Security and external vendors
Defending networks from cyber threat actors
Operating within a complex ecosystem of tools and systems
Building effective automation solutions
Growing technical capability through mentoring and self?
directed learning
Employment Requirements
Six month probation period
Medical, psychometric or skills testing may be required
Must comply with company policies, security, safety and quality requirements
Must meet ITAR access requirements
Diversity and Inclusion
We welcome applications from candidates of all backgrounds and experiences.
Veterans
Defence experience is highly desirable.
Veterans are strongly encouraged to apply.
About Cleared
At Cleared, we provide tailored recruitment solutions to individuals seeking their next opportunity and to organisations searching for talent within Defence Industry, Intelligence and National Security.
#J-*****-Ljbffr

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