Senior System Administrator jobs

Senior Virtual Desktop System Administrator Vertical Scope Group – Consultant – Expert, Trusted & Reputable in ICT and Cyber Join Vertical Scope Group’s Professional Services Division as we are seeking a driven, highly skilled and competent TSPV, Senior Virtual Desktop System Administrator to support our Defence and National Intelligence Community customers. About You: - Must have or must be...

RFQ-ASD-LH-05285 Senior Security System Administrator Due to the nature of clients we work with here at Kinexus and the projects these roles will be based on, an Australian Government Top Secret Positive Vetting (TSPV) clearance is essential. These opportunities do not have the ability to obtain sponsorship for a security clearance (including applicants who currently hold a security clearance...

About the Role We are seeking an experienced Senior Linux Administrator to support complex, mission-critical ICT systems across multiple security classifications on the AIR 6500 Program. This role is ideal for a Linux professional with a Defence background who enjoys working in large, secure, technically demanding environments. What you’ll be doing - Owning the end-to-end lifecycle of Linux...

A technology firm is seeking a Senior Systems Administrator to support a secure, high-availability platform across Linux and AWS environments in Australia. The ideal candidate will have expertise in Red Hat Linux, AWS services, and automation tools like Ansible. Applicants must meet NV2 clearance requirements. The role involves administration, security implementation, and performance monitoring,...

This role has been designed as ‘’Onsite’’ with an expectation that you will primarily work from an HPE partner/customer office. Who We Are Hewlett Packard Enterprise is the global edge-to-cloud company advancing the way people live and work. We help companies connect, protect, analyze, and act on their data and applications wherever they live, from edge to cloud, so they can turn insights into...

A leading technology firm in Canberra is seeking a Senior Systems Administrator to manage and support a high-availability Linux and AWS platform. Ideal candidates will have extensive experience with Red Hat Linux and AWS services, as well as expertise in automation tools like Ansible. The role demands NV2 clearance, with responsibilities including system administration, security implementation,...

A leading technology firm in Australia is looking for a Systems Administrator responsible for managing and maintaining ICT systems, ensuring security, performance, and operational readiness. The ideal candidate will possess technical expertise in both Windows and Linux environments, knowledge of network infrastructure, and five years' experience in a similar role. Professional certifications such...

An Australian educational institution located in Western Australia is seeking a Systems Administrator to provide high-level technical support and manage enterprise systems. This role requires expertise in ICT infrastructure, a relevant degree, and the ability to troubleshoot effectively. Successful candidates will enjoy a vibrant campus with numerous benefits, including health services and...

This position is focused on project management and implementation. Responsibilities include researching, planning, and implementing the technical portion of company projects, monitoring and maintenance of IT infrastructure and respond to security and other critical events. This role is also expected to assist other system administrators with daily procedures and handling escalated or surplus...

A leading defense contractor in Australia is seeking a Senior Systems Administrator to manage and maintain ICT systems. This critical role involves technical leadership, ensuring optimal performance, and compliance with cybersecurity standards. The candidate requires a Bachelor's degree in Computer Science or IT and a minimum of 8-10 years of experience. Proficiency in both Microsoft and Linux...

One of our Federal Government clients is looking for Senior Windows VDI System Administrators in Canberra, Brisbane, Melbourne and Adelaide. We are looking for the following Skills/Experience - Demonstrated experience or qualifications in Microsoft Server and Desktop technologies (including Exchange, WSUS, MECM, SCCM, AD). - Develop and operate a windows server platform including Active...

A leading gold mining company is seeking an experienced Senior Site Administrator for a 12-month parental leave cover at Thunderbox Operations in Western Australia. The candidate will oversee site administration, manage daily operations, and lead a team. Requirements include at least 5 years of relevant experience, proficiency in INX and Pronto systems, and a valid Australian driver's license....

A defense technology firm is seeking a Senior System Administrator at RAAF Base Williamtown, New South Wales. The successful candidate will ensure the reliability of communication and IT systems, manage ICT infrastructure, and implement security measures. This role requires analytical problem-solving skills and a background in defense-related IT. Applicants must have qualifications in IT or...

Join Centorrino Technologies: Innovate, Grow, and Thrive with Us! At Centorrino Technologies (CT), we’re more than just tech—we’re a community that goes beyond expectations. We’ve been recognised as a Great Place to Work in 2024-2025 and one of the Best Places to Work Medium & Large Size in Australia for 2025, with an outstanding eNPS score of 68. And we’re not stopping there. We're on a mission...

A community-focused technology firm in Canberra is seeking a Senior Systems Administrator to support high-availability platforms across Linux and AWS. The ideal candidate will have expertise in Red Hat Linux, AWS services, and automation tools like Ansible. This position involves managing AWS infrastructure, implementing security controls, and requires NV2 clearance. Enjoy extensive training, fun...

Senior Linux System Administrator - Support Engineer (with High Performance Computing Focus) This role has been designed as “Onsite” with an expectation that you will primarily work from an HPE partner/customer office. Who We Are Hewlett Packard Enterprise is the global edge-to-cloud company advancing the way people live and work. We help companies connect, protect, analyze, and act on their...

About This Role CAe - The information below describes a role at CAE. (Removed boilerplate and non-essential tracking content.) Job Description Summary The Senior Systems Administrator is responsible for the upkeep, configuration, and reliable operation of ICT systems, particularly multi-user networked environments including servers. This role ensures optimal uptime, performance, resource...

A leading recruitment partner in Australia is seeking an experienced Senior Systems Administrator to support secure operations in a high-availability environment. The role involves hands-on administration of Linux and AWS systems, focusing on security and performance. Candidates must have extensive experience with Red Hat systems and a solid understanding of AWS services. An Australian Government...

RFQ-ASD-LH-05241 Senior Systems Administrator Due to the nature of clients we work with here at Kinexus and the projects these roles will be based on, an Australian Government Negative Vetting Level 2 (NV2) clearance is essential. These opportunities do not have the ability to obtain sponsorship for a security clearance (including applicants who currently hold a security clearance seeking to...

Join Centorrino Technologies: Innovate, Grow, and Thrive with Us! At Centorrino Technologies (CT), we’re more than just tech—we’re a community that goes beyond expectations. We’ve been recognised as a Great Place to Work in 2024-2025 and one of the Best Places to Work Medium & Large Size in Australia for 2025, with an outstanding eNPS score of 68. And we’re not stopping there. We're on a mission...