Are you a skilled Systems Administrator with deep experience across both Wintel and Linux environments? We're working with a leading Australian banking institution on a critical uplift program aligned to the Essential Eight cybersecurity framework. This is a high-impact role within a fast-paced, enterprise-scale environment.

Key Responsibilities:

• Support and uplift core infrastructure across Wintel and Linux platforms

• Contribute to remediation efforts aligned to Essential Eight security controls

• Assist with patching, hardening, and configuration management across systems

• Troubleshoot and resolve system-level issues in a hybrid environment

• Collaborate with security, network, and cloud teams on cross-functional initiatives

Key Requirements:

• Strong experience administering Windows Server (Wintel) and Linux (RHEL/CentOS) systems

• Proven experience in large, complex enterprise environments (ideally financial services)

• Solid scripting and automation knowledge (PowerShell, Bash, etc.)

• Familiarity with vulnerability remediation and hardening standards

• Excellent troubleshooting skills and experience in production support

Highly Desirable:

• Basic Azure exposure (e.g., IaaS, VM management, Azure AD)

• Experience or exposure to Airlock/WAF solutions

• Understanding of security frameworks, particularly the Essential Eight

Why Apply?

• Be part of a security uplift program that directly contributes to the bank's risk posture

• Work with a highly collaborative and experienced infrastructure team

• Flexible hybrid work model (2-3 days in the Sydney office)

• Day rate contract with potential for extension