Mandatory Criteria:- A current security clearance of at least Negative Vetting Level 1.- At least five (5) years demonstrated experience in the design, management and maintenance of large-scale data center networking environment.- Experience in the development of network high-level designs and detailed designs.- Ability to articulate detail through design and implementation plans.- Highly developed diagnostic and problem-solving skills.- Excellent communication skills, both written and oral.- Ability to work effectively as a team member.Weighted Criteria:- Demonstrated experience with solid knowledge in design and configuration of Networking, Wireless LAN, Software Defined Network.- Demonstrated experience in the design and integration of enterprise network.- Demonstrated experience in implementing, configuring and maintaining network devices including Cisco Catalyst, Nexus Switches, Cisco ACI, F5 Load balancers, DNS, network proxy and network firewalls.- Expertise in dynamic routing protocols, particularly EIGRP, OSPF & BGP.- Demonstrated experience in the development and maintenance of system architecture and design documentation.- Experience using network management software and tools to investigate and diagnose network problems, collect performance statistics and create reports.- Demonstrated experience with or knowledge of Australian Government information security policies, the ASD Information Security Manual and Essential Eight.