Senior System Administrator - PV Cleared | Secure Enterprise Infrastructure Role Join a high-performing secure ICT environment where you will lead system administration activities across complex enterprise platforms. These opportunities are ideal for experienced System Administrators who can manage system builds, support infrastructure operations, improve automation and configuration management, and provide technical leadership across integrated teams delivering critical services. Essential Tasks: Lead the installation, configuration, maintenance, and support of multiple systems across secure environments Use automation tools to support system builds, continuous configuration management, and infrastructure improvements Provide hardware, operating system, and system software support while contributing to integration, testing, and deployment activities Guide team members, contribute to design reviews and stakeholder engagement, and maintain documentation in line with policy and procedure Key Criteria: Strong experience in system administration across operating systems, infrastructure maintenance, and enterprise support environments Demonstrated ability to automate provisioning, testing, deployment, and configuration management activities Experience in systems design, installation, systems integration, and system software lifecycle support Strong stakeholder communication skills with the ability to work across technical and business teams in complex environments Location: Onsite - Canberra. Contract Duration: 12 months with 2 x 12-month extension options. Security Clearance: Due to the nature of this environment, candidates are required to have a TSPV clearance to perform this role. This position is open to Australian citizens with a valid security clearance due to role requirements. We are committed to a non-discriminatory hiring process but, unfortunately, cannot provide visa sponsorship for overseas applicants. How to Apply Does this role sound perfect for you? If so, to register your interest in this role, please either contact Kate on ( or Click APPLY! Due to system limitations, we will only be able to contact candidates who closely match the requirements for this role. We appreciate your understanding and encourage you to apply if your experience aligns with the position.