Own enterprise infrastructure, lead technical escalations and drive continual improvement across servers, cloud, networking and security.

- Senior technical role with broad infrastructure ownership
- Manage servers, networks, cloud and security platforms
- Autonomous environment with varied project work

About the Role

We're partnering with a nationally recognised organisation seeking a highly capable Systems Administrator to join their technology team.

This opportunity is ideal for an experienced infrastructure professional who is comfortable operating at a Level 3 technical capacity. You'll be responsible for maintaining and improving core technology platforms across servers, Microsoft 365, networking, security and virtualisation environments while helping deliver key technology initiatives.

The position offers a mix of BAU infrastructure support, strategic improvement work and participation in technology projects, making it well suited to someone who enjoys variety and ownership.

Key Responsibilities

- Manage and optimise Microsoft 365, Active Directory and Windows Server environments
- Maintain virtual infrastructure, backup platforms and disaster recovery capabilities
- Monitor,



secure and improve network infrastructure and connectivity services
- Act as the senior escalation point for complex technical incidents
- Support infrastructure projects, system upgrades and cloud initiatives

About You

- 5+ years' experience in systems administration, infrastructure support or a similar technical role
- Demonstrated experience managing enterprise Windows Server environments
- Strong Microsoft 365 administration experience across Exchange Online, Teams and SharePoint
- Expertise with networking technologies including firewalls, switches, routing and VPNs
- Experience with VMware, Hyper-V, Azure and security-focused infrastructure management

About the Company

Our Client is a large and established Australian organisation supporting critical business operations across multiple sites. With a solid focus on operational excellence and technology investment, they offer a complex and engaging environment where experienced infrastructure professionals can make a meaningful impact.

For more information or a confidential discussion, please apply.

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📌 Senior System Administrator (Brisbane City)
🏢 Perigon Group
📍 Brisbane City