Linux Systems Administrator (RHEL / VMware) | Sydney | Contract

We're partnering with a leading financial services organisation to secure an experienced Linux Systems Administrator to join a team responsible for supporting critical infrastructure that underpins major payment and settlement services across Australia.

This is a hands-on role focused on ensuring the availability, stability, security, and performance of business-critical systems. You'll work within a production support environment, supporting enterprise Linux platforms, virtualisation technologies, and associated infrastructure while contributing to automation and continuous improvement initiatives.

What You'll Be Doing

- Administering and supporting enterprise Linux environments, primarily Red Hat Enterprise Linux (RHEL).
- Supporting mission-critical production systems with a strong focus on uptime, resilience, and service availability.
- Managing and troubleshooting VMware infrastructure.
- Performing system maintenance, patching, upgrades, and operational support activities.
- Investigating and resolving complex system and infrastructure issues.
- Developing automation and operational efficiencies through scripting and tooling.
- Supporting infrastructure changes, deployments, and platform enhancements.
- Working closely with internal stakeholders and technology teams to deliver high-quality support services.
- Contributing to security,



performance, and reliability improvements across the environment.

What We're Looking For
- Strong commercial experience administering Linux environments, ideally RHEL.
- Solid VMware administration and support experience.
- Scripting and automation capability using Shell, Python, PowerShell, or similar technologies.
- Experience supporting enterprise-scale production environments.
- Strong troubleshooting skills across operating systems, infrastructure, and networking.
- Experience with system upgrades, patching, backup, recovery, and operational support processes.
- Ability to work effectively within a highly regulated and business-critical environment.

Nice to Have
- Red Hat Clustering, Pacemaker, or other high-availability clustering technologies.
- Financial services, payments, banking, or other mission-critical infrastructure experience.
- Experience with Satellite, Commvault, Azure, M365, or Zscaler.
- Exposure to supporting large-scale enterprise platforms and infrastructure roadmaps.

What's on Offer
- Long-term contract with a strong likelihood of extension.
- Hybrid working arrangement (approximately 50% office-based).
- Prospect to support some of Australia's most critical technology platforms.
- Collaborative team environment with exposure to complex enterprise infrastructure.

📌 Senior Systems Administrator - Linux (RHEL) (New South Wales)
🏢 Talenza
📍 New South Wales