Sydney | Hybrid - 50% office attendance | Initial 6-month contract | Multiple positions
We're seeking three experienced Senior Systems Administrators to support a major infrastructure modernisation program within a complex enterprise environment.
These roles are ideal for hands-on infrastructure professionals with strong experience across Windows Server, Red Hat Enterprise Linux and VMware. You'll be involved in building, configuring, migrating and supporting critical server environments while helping ensure systems are secure, reliable and ready for operational handover.
What you'll be doing
Building, configuring and supporting Windows and Linux servers using established processes and standards
Administering Windows Server ****, **** and **** environments
Managing Active Directory, Group Policy, DNS, DHCP and Certificate Services
Supporting RHEL environments across patching, hardening, package management and performance tuning
Administering VMware vSphere and ESXi virtual infrastructure
Delivering server provisioning, deployment, patching and lifecycle-management activities
Supporting virtual server migrations, upgrades and broader platform-modernisation initiatives
Automating operational and administrative tasks using PowerShell and Bash
Monitoring systems,



investigating incidents and resolving complex infrastructure issues
Completing server validation, readiness testing, documentation and operational handover
Supporting backup, recovery and disaster-recovery processes
What we're looking for
Extensive Windows Server and Red Hat Enterprise Linux administration experience
Strong knowledge of core Windows infrastructure services, including Active Directory and Group Policy
Solid VMware vSphere and ESXi experience
Hands-on experience with server provisioning, patching and lifecycle management
Strong PowerShell scripting and automation capability
Experience using Bash or Linux shell scripting
Sound understanding of TCP/IP, DNS, routing and firewall concepts
Experience with enterprise monitoring, logging and troubleshooting
Strong documentation, stakeholder communication and problem-solving skills
Experience with server migrations, platform modernisation, Terraform, Puppet, Ansible or other infrastructure automation tools will be highly regarded.
Why consider this chance?
Work across both Windows and Linux technologies
Gain exposure to complex migration and platform-upgrade initiatives
Initial six-month contract with three positions available
#J-*****-Ljbffr

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