Infrastructure Systems Administrator

5 days ago

Sydney, New South Wales, Australia Talent Full time $80,000 - $120,000 per year

Infrastructure Systems Administrator - Defence & Maritime

Location:
Central Sydney

Clearance:
NV1 (Australian Citizens only)

Salary:
$160,000 - $190,000 depending on experience

Our client, a leading defence partner in the maritime domain, is seeking a skilled
Infrastructure Systems Administrator
to join their team. This role is pivotal in ensuring the stability, security, and scalability of critical defence simulation and fleet battle systems.

If you're an experienced systems administrator with a passion for defence technology and the capability to operate in a highly secure environment, this is an opportunity to play a direct role in supporting Australia's naval operations.

Key Responsibilities

  • Administer and maintain Windows Server 2022 and Red Hat Enterprise Linux 8 systems
  • Manage Active Directory, Group Policy, DNS, DHCP, and implement system hardening
  • Configure and optimise Hyper-V and VMware environments
  • Oversee Veeam Backup & Replication, including disaster recovery planning
  • Configure, monitor, and troubleshoot Cisco switches/routers and FortiGate firewalls
  • Support and secure LAN, WAN, and VPN infrastructure
  • Integrate and support simulation systems using advanced simulation architectures
  • Ensure systems remain compliant with evolving Defence cyber standards
  • Monitor performance, apply patches, and automate tasks with PowerShell and Bash
  • Provide Tier 2/3 support and manage incident troubleshooting and resolution
  • Maintain up-to-date documentation of ICT systems and services
  • Collaborate with vendors and Defence stakeholders under structured change management

Required Qualifications & Certifications

  • Certificate IV, Diploma, or higher in IT; or equivalent industry certifications such as:

  • Microsoft Certified: Windows Server Administrator

  • Red Hat Certified System Administrator/Engineer (RHCSA/RHCE)
  • VMware Certified Professional (VCP)
  • Cisco CCNA/CCNP
  • Fortinet NSE 4+
  • Veeam Certified Engineer (VMCE)
  • CompTIA Security+ or Network+

Essential Skills & Experience

  • Minimum 5 years' systems administration experience in medium-to-large IT environments
  • Strong expertise in Windows and/or Linux (RHEL) administration
  • Proven experience with Cisco networking and FortiGate firewalls
  • In-depth knowledge of AD, DNS, DHCP, and Group Policy
  • Hands-on experience with Hyper-V, VMware, and Veeam Backup & Replication
  • Solid grasp of networking protocols (TCP/IP, VLANs, routing, VPNs, multicast)
  • Strong troubleshooting and problem-solving ability
  • Knowledge of cyber security practices and security awareness
  • Excellent communication and collaboration skills

Highly Desirable

  • Exposure to defence/military IT environments, especially maritime or naval
  • Experience with simulation standards (DIS/HLA)
  • Familiarity with Naval Combat Management Systems (2+ years)
  • Understanding of Navy operations, doctrine, and warfighting principles
  • Knowledge of C4I systems (e.g., Link16, GCCS)
  • Proficiency in automation scripting (PowerShell, Bash)

Additional Details

  • Hours:
    40 per week; flexibility required to align with US time zones during exercises (may include overnight work)
  • Clearance:
    Must currently hold or be eligible to hold an
    NV1 Defence clearance
  • Eligibility:
    Australian Citizens with current secruity clearance

Desired Skills and Experience
Infrastructure Systems Administrator - Defence & Maritime

Location: Central Sydney

Clearance: NV1 (Australian Citizens only)

Salary: $160,000 - $190,000 depending on experience

Our client, a leading defence partner in the maritime domain, is seeking a skilled Infrastructure Systems Administrator to join their team. This role is pivotal in ensuring the stability, security, and scalability of critical defence simulation and fleet battle systems.

If you're an experienced systems administrator with a passion for defence technology and the capability to operate in a highly secure environment, this is an opportunity to play a direct role in supporting Australia's naval operations.

Key Responsibilities

Administer and maintain Windows Server 2022 and Red Hat Enterprise Linux 8 systems

Manage Active Directory, Group Policy, DNS, DHCP, and implement system hardening

Configure and optimise Hyper-V and VMware environments

Oversee Veeam Backup & Replication, including disaster recovery planning

Configure, monitor, and troubleshoot Cisco switches/routers and FortiGate firewalls

Support and secure LAN, WAN, and VPN infrastructure

Integrate and support simulation systems using advanced simulation architectures

Ensure systems remain compliant with evolving Defence cyber standards

Monitor performance, apply patches, and automate tasks with PowerShell and Bash

Provide Tier 2/3 support and manage incident troubleshooting and resolution

Maintain up-to-date documentation of ICT systems and services

Collaborate with vendors and Defence stakeholders under structured change management

Required Qualifications & Certifications

Certificate IV, Diploma, or higher in IT; or equivalent industry certifications such as:

Microsoft Certified: Windows Server Administrator

Red Hat Certified System Administrator/Engineer (RHCSA/RHCE)

VMware Certified Professional (VCP)

Cisco CCNA/CCNP

Fortinet NSE 4+

Veeam Certified Engineer (VMCE)

CompTIA Security+ or Network+

Essential Skills & Experience

Minimum 5 years' systems administration experience in medium-to-large IT environments

Strong expertise in Windows and/or Linux (RHEL) administration

Proven experience with Cisco networking and FortiGate firewalls

In-depth knowledge of AD, DNS, DHCP, and Group Policy

Hands-on experience with Hyper-V, VMware, and Veeam Backup & Replication

Solid grasp of networking protocols (TCP/IP, VLANs, routing, VPNs, multicast)

Strong troubleshooting and problem-solving ability

Knowledge of cyber security practices and security awareness

Excellent communication and collaboration skills

Highly Desirable

Exposure to defence/military IT environments, especially maritime or naval

Experience with simulation standards (DIS/HLA)

Familiarity with Naval Combat Management Systems (2+ years)

Understanding of Navy operations, doctrine, and warfighting principles

Knowledge of C4I systems (e.g., Link16, GCCS)

Proficiency in automation scripting (PowerShell, Bash)

Additional Details

Hours: 40 per week; flexibility required to align with US time zones during exercises (may include overnight work)

Clearance: Must currently hold or be eligible to hold an NV1 Defence clearance

Eligibility: Australian Citizens with current secruity clearance

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