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Senior Systems Administrator - Hybrid Cloud & Resilience

Colonial GroupMelbourne, Victoria🇦🇺AustraliaPosted 4 Oct 2026

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
Hybrid
Location
Melbourne, Victoria, Australia

Job Description

Avant is seeking a Senior Systems Administrator to secure and optimise our enterprise infrastructure across on premise, cloud and hybrid platforms. You will manage Windows Server, AD, Entra ID and Linux, while advancing identity controls, disaster recovery and operational resilience in a regulated financial services context.

You will collaborate with IT Operations to implement security controls, patching, monitoring and automation, mentor staff and support audits and regulatory reviews to

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