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Senior System Administrator jobs in Australia

Jobs found: 134,845
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at
South Australia
$80,000 – $100,000 per month

PLEASE NOTE: The Nova Systems Talent Acquisition Team will be on Christmas stand down from COB on Friday 19th of December and return on Monday 5th of January. We will commence reviewing and responding to applications upon our return. About the role Nova Systems is a leading engineering services and technology solutions company, partnering with our clients to keep our nations and people safe and...

Hybrid
8 hours ago
Nova Group
South Australia
$80,000 – $100,000 per month

A leading engineering solutions company in Australia is seeking a Senior Systems Administrator to manage technology infrastructure and provide third-level support. The ideal candidate should have significant experience with Azure Cloud Services and Microsoft 365 Platforms. This role offers generous parental leave, professional development allowances, and a commitment to employee well-being in a...

Hybrid
8 hours ago
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Kinexus
Canberra 2600
$80,000 – $100,000 per month

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...

8 hours ago
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Centorrino Technologies
Australia
$80,000 – $100,000 per month

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...

8 hours ago
Hewlett Packard Enterprise
Canberra 2600
$80,000 – $100,000 per month

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...

8 hours ago
Cubic Corporation
New South Wales
$80,000 – $100,000 per month

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...

9 hours ago
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Centorrino Technologies Pty Ltd.
Canberra 2600
$80,000 – $100,000 per month

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...

9 hours ago
CAE
Canberra 2600
$80,000 – $100,000 per month

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...

9 hours ago
IT Alliance Australia
South Australia
$80,000 – $100,000 per month

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...

9 hours ago
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Leidos Australia
Canberra 2600
$80,000 – $100,000 per month

Senior SharePoint System Administrator – Leidos Australia Location: Canberra, CBD – within proximity to major amenities and public transport hubs. Life Days: the Leidos way of recognising that we all need extra time to take care of life. By working slightly more than the minimum weekly hours (2 hours per week for full‑timers), you can accrue up to 12 days of leave per year. Security Clearance:...

9 hours ago
Centorrino Technologies Pty Ltd.
Canberra 2600
$80,000 – $100,000 per month

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,...

9 hours ago
Centorrino Technologies
Australia
$80,000 – $100,000 per month

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,...

8 hours ago
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IT Alliance Australia
South Australia
$80,000 – $100,000 per month

Overview One of our Federal Government clients is looking for Senior VDI System Administrator in Canberra, Melbourne, Brisbane and Adelaide. Skills/Experience - Demonstrated experience and qualifications in administering Omnissa (VMware EUC) and Citrix Cloud technologies. - Demonstrated experience and qualifications in Microsoft server and desktop technologies (including Exchange, WSUS,...

9 hours ago
Hewlett Packard Enterprise
South Australia
$80,000 – $100,000 per month

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...

9 hours ago
at
Adelaide 5001
$80,000 – $100,000 per month

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...

Hybrid
8 hours ago
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Senior System Administrator, Australia
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CAE
Canberra 2600
$80,000 – $100,000 per month

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...

9 hours ago
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Nova Group
South Australia
$80,000 – $100,000 per month

Job Description PLEASE NOTE: The Nova Systems Talent Acquisition Team will be on Christmas stand down from COB on Friday 19th of December and return on Monday 5th of January. We will commence reviewing and responding to applications upon our return. About the role Nova Systems is a leading engineering services and technology solutions company, partnering with our clients to keep our nations...

Hybrid
8 hours ago
Kinexus
Canberra 2600
$80,000 – $100,000 per month

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...

9 hours ago
Bookmark Not interested
Kinexus
Canberra 2600
$80,000 – $100,000 per month

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...

9 hours ago
Centorrino Technologies
Canberra 2600
$80,000 – $100,000 per month

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...

9 hours ago
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