Network and System Administrator
Summary
System/network administrator maintaining Windows Server and Microsoft Hyper-V infrastructure: provisioning and monitoring VMs, managing Active Directory, DNS, DHCP and Group Policy, patching and hardening, running backups and disaster recovery, and troubleshooting network/server issues, with participation in a 24/7 on-call rotation.
Salary: $100,000 – $120,000 per year
Key Responsibilities
• Administer and maintain Microsoft Hyper-V virtualisation infrastructure, including provisioning, monitoring, and optimising virtual machines
• Manage Windows Server environments including Active Directory, DNS, DHCP, Group Policy, and file services
• Monitor system health, performance metrics, and capacity planning across servers and network infrastructure
• Perform regular patching, firmware updates, and security hardening in line with organisational policies
• Manage backup and disaster recovery systems, including regular testing and verification of restore procedures
• Troubleshoot and resolve network, server, and application issues in a timely manner
• Maintain accurate documentation of systems, configurations, and operational procedures
• Participate in on-call rotation to support 24-hour business operations
• Collaborate with the broader technology team on infrastructure projects and improvements
Required Skills & Experience
• Minimum 3 years' experience in a system or network administration role
• Strong hands-on experience with Microsoft Hyper-V virtualisation
• Solid experience administering Windows Server (2016/2019/2022)
• Sound understanding of networking fundamentals including TCP/IP, VLANs, firewalls, and switching
• Experience with backup technologies and disaster recovery procedures
• Demonstrated ability to troubleshoot complex technical issues methodically
• Strong documentation and communication skills
• Ability to work autonomously and manage competing priorities
• Australian citizenship required for this position
Desirable
• Experience working in environments with strict uptime requirements or SLAs
• Familiarity with monitoring and alerting tools (PRTG, Zabbix, or similar)
• Microsoft certifications (MCSA, MCSE, or Azure equivalent)
• Experience with SQL Server administration