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Senior Systems Administrator - Windows/AD/VMware

Contract Type

Contract

Location

New South Wales, Sydney

Industry

IT

Specialisation

Infrastructure and Cloud

Salary

AU$85 - AU$100 per day

Contact Name

Martin Pearson

Contact Email

martin.pearson@talenza.com.au

Date published

30-06-2026

Job Reference

BBBH21781

Description

Senior Systems Administrator

5-Month Contract | Sydney | Hybrid | Immediate Start

I'm currently working with a highly regarded enterprise organisation looking to engage a Senior Systems Administrator for an exciting infrastructure project focused on building and deploying critical Windows server environments.

This is a hands-on engineering role where you'll be responsible for designing, building, hardening and deploying Active Directory infrastructure into a large enterprise environment. You'll work closely with infrastructure and project teams to deliver production-ready server platforms built to enterprise standards.

You'll play a key role across the full server lifecycle including:

  • Designing and building new Active Directory server environments
  • Configuring and promoting Windows servers into enterprise domains
  • Building physical servers to standard operating environment (SOE) specifications
  • Implementing server hardening using Group Policy and security best practices
  • Performing patching, firmware updates and ongoing system maintenance
  • Supporting testing, validation, Operational Readiness (ORE) activities and production go-live
  • Following established build documentation and standard operating procedures
  • Troubleshooting, performance tuning and supporting enterprise server infrastructure

We're keen to speak with Senior Systems Administrators who have strong experience across:

  • Windows Server administration in enterprise environments
  • Active Directory design, build and configuration (AD Join, Domain Promote, DNS and Domain Services)
  • VMware administration and virtual infrastructure
  • Linux systems administration (working knowledge)
  • Physical server deployment and configuration
  • Server hardening including Group Policy (GPO) and off-domain environments
  • Windows patching, firmware management and server lifecycle maintenance
  • System monitoring, troubleshooting and performance optimisation

Nice to have

  • Experience delivering virtual server migrations
  • Produce detailed Active Directory server designs
  • Build and configure enterprise AD servers to hardened SOE standards
  • Promote servers into the production domain
  • Implement security hardening through GPO and enterprise standards
  • Complete testing, Operational Readiness (ORE) and support successful production deployment

Apply Now

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