System Administrator

Contract Type:

Contract

Location:

Potts Point, New South Wales, 2011, Australia

Industry:

Information & Communication Technology (ICT)

Salary:

$700.00 - $800.00 Daily

Contact Email:

dylans@whizdom.com.au

Date Published:

14-Oct-2025

System Administrator

About the Client:
A global defence and engineering organisation delivering secure, scalable ICT infrastructure to support simulation and operational systems. This role supports the Fleet Battle Lab System, contributing to mission-critical environments and cyber-resilient platforms.

About the Role:
We are seeking an experienced System Administrator to manage and maintain Windows Server and Red Hat Enterprise Linux systems, support virtualisation environments, and ensure network stability and security. You’ll work across a broad tech stack including Cisco, Fortinet, VMware, and Veeam, supporting simulation integration and Defence-grade infrastructure.

Key Responsibilities:
  • Administer Windows Server 2022 and RHEL 8 systems.
  • Manage Active Directory, Group Policy, DNS, DHCP, and system hardening.
  • Configure and support Hyper-V and VMware environments.
  • Maintain Veeam Backup & Replication and disaster recovery planning.
  • Monitor and troubleshoot Cisco switches, routers, and FortiGate firewalls.
  • Automate tasks using PowerShell and Bash scripting.
  • Provide Tier 2/3 support and collaborate with vendors and stakeholders.
Required Experience:
  • Minimum 5 years’ experience in systems administration.
  • Strong background in Windows and/or Linux (RHEL) environments.
  • Hands-on experience with Cisco networking, FortiGate firewalls, and virtualisation platforms.
  • Solid understanding of AD, DNS, DHCP, and Group Policy.
  • Exposure to cybersecurity practices and Defence ICT standards.
  • Excellent troubleshooting and communication skills.
  • NV1 Security Clearance(mandatory).
  • Relevant certifications (e.g., Microsoft, Red Hat, VMware, Cisco, Fortinet, Veeam, CompTIA) highly regarded.
What’s on Offer?
  • 8-month contract - end date of 30th June 2026
  • $700-$800 per day (negotiable)
  • Based in Potts Point, NSW
  • Work on Defence-grade infrastructure and simulation systems
How to Apply:
To express interest, please upload your resume. Suitable candidates will be contacted with further instructions.
📩 Contact Dylan Sheoshker at dylans@whizdom.com.au or 📞 0480 002 456
Apply Now

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