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Senior systems administrator

Sydney
Board of Australian Finance Group
System Administrator
Posted: 26 April
Offer description

We are seeking an experienced Senior Systems Administrator to play a pivotal role in designing, operating, and modernising our IT infrastructure while helping shape a scalable, secure, and automated Technology Operations capability.

This is a hands‐on senior technical role with clear scope to influence how IT services are delivered today, and strong future potential to progress into people leadership.

Your new role

As a Senior Systems Administrator, you will be responsible for the stability, security, and continuous improvement of AFG's on‐prem, cloud, and hybrid environments. A key focus of the role is reducing manual effort through automation, maturing service desk processes, and establishing robust, repeatable standards across infrastructure and end‐user computing.

You'll act as a technical authority and escalation point, working closely with Cloud Engineering, Cyber Security, and the broader Technology team to ensure systems are reliable, well‐documented, and fit for a growing organisation.

What you'll do

* Manage and optimise on‐prem, cloud, and hybrid infrastructure across servers, storage, networks, and end‐user environments
* Monitor system performance and availability, delivering patching, upgrades, backups, and disaster recovery
* Design and implement automation for service desk processes, including onboarding/offboarding, access management, and self‐service solutions
* Develop scripts and workflows using tools such as PowerShell, Python, and Microsoft Power Automate
* Define and maintain a standardised SOE across Windows and Mac, leveraging Intune and Iru for device management
* Support Microsoft 365, Azure, and IAM platforms, ensuring secure access and compliance with security standards
* Act as a senior technical escalation point, mentor team members, and maintain clear technical documentation
* Drive continuous improvement through automation, standardisation, and modernisation initiatives

What you'll bring

* Proven experience in a senior systems administration role within complex on‐premises and cloud environments
* Strong expertise across Microsoft technologies, including Windows Server, Active Directory, Group Policy, Microsoft 365, and Azure
* Hands‐on experience managing Windows and Mac devices using Intune and Iru
* Demonstrated success delivering automation for IT service desk and operational processes
* Solid understanding of IT security principles, including IAM, MFA, endpoint security, and vulnerability management
* Ability to manage competing priorities and work effectively with minimal supervision
* Clear communication skills with the ability to explain technical concepts to non‐technical stakeholders

About AFG

Australian Finance Group (ASX:AFG) is one of Australia's largest mortgage broking groups, founded in 1994, with over 300 staff across the country and a growing home loan and business lending business. AFG processes a significant share of all Australian residential mortgages and manages over $214 billion in residential and commercial finance.

AFG is committed to our culture. We provide an inclusive workplace where all are welcomed and recognised for their unique abilities, regardless of gender, race, religion, disability, orientation, or other identity attribute.

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