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Senior Systems Administrator – Linux & Windows

Green Light Worldwide · Sydney

Senior 🇬🇧 English
Red Hat Enterprise Linux (RHEL) Windows Server Active Directory DNS LUN configuration

Job description

About the role

Green Light is seeking a Senior Systems Administrator to join its Sydney delivery team on an initial 6‑12 month assignment, with the possibility of extension. This onsite role focuses on building, validating, and configuring server infrastructure across both Windows and Red Hat Enterprise Linux environments for a large enterprise program.

Key responsibilities

  • Validate Windows and RHEL server builds against standards and SOPs.
  • Build and configure servers following documented processes for both platforms.
  • Add and configure storage, including disk allocation, partitioning, and LUN setup.
  • Support VMware administration tasks such as provisioning and configuring virtual machines.
  • Manage clustering technologies in Windows and Red Hat environments.
  • Assist with Active Directory integration, DNS configuration, and domain‑related activities.
  • Perform system validation, testing, and ensure operational readiness before deployment.
  • Document build processes, validation steps, and configuration details.

Required profile

  • 5‑10+ years of experience in systems administration or engineering.
  • Strong expertise with Red Hat Enterprise Linux and Windows Server.
  • Proven experience on high‑visibility, time‑critical projects.
  • Excellent attention to detail and ability to follow documented SOPs.

Required skills

  • Red Hat Enterprise Linux (RHEL)
  • Windows Server
  • VMware vSphere / ESXi administration
  • Active Directory and DNS
  • Server build, storage allocation, and disk partitioning
  • Clustering technologies for Windows and Red Hat
  • Virtual machine provisioning and configuration

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Published 3 months ago

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Green Light Worldwide

Sydney