Position Summary The IT Network Infrastructure of Optus is a complex environment consisting of several Infrastructure Technologies. These technologies are configured and organised into Infrastructure Platforms and Functional Security Domains that provide connectivity for services across the LAN, WAN, MAN, Transit and Data Centre Network modules. All Optus application systems are delivered by or operate on these Infrastructure Platforms and IT Networks. These IT Networks carries business data, voice, video, security, and Call Centre communications that Optus staff and various systems depend upon for their productivity; and they enable staff or business partners working off-site to remotely and securely connect to IT applications. The Major Network Infrastructure Platforms within the team’s accountability include:
- Physical and Virtual Routers and Switches
- Firewalls and Cybersecurity Platforms
- Cloud related resources and platforms. (AWS, Azure and GCP).
- DNS and DHCP configuration and platforms, IP Address Management
- Other specialised appliances and systems necessary to provide visibility and monitoring of operational resilience.
- Provide Tier3 support to Operations and interact with vendors on issues. Education/Qualifications/Certifications that will be highly regarded
• Information Technology or Engineering Degree, Technical Certification or equivalent minimum 5 years of industry experience in the Network/IT field designing and engineering large enterprise Network systems.
• Vendor-based DDI and Security Certifications eg EfficientIP, Infoblox, Fortinet, Checkpoint
• AWS/Google/Azure Architecture,



Network and/or Security specialty Certifications
• CISSP or other Cybersecurity certification Technical/Professional

Skills:
Extensive hands on and technical specialist skills in the design and configuration of networking security infrastructure, including the ability to support and integrate a variety of technologies and services. Expert knowledge of LAN, WAN and Data Centre network integration techniques and enterprise design. Valuable knowledge of Software Defined Networks (SDN) and Cloud technologies across the major three providers AWS, Azure and GCP. Expert design and configuration skills in:  Network routing and switching technologies and platforms, particularly Cisco  Azure, Google and AWS IaaS (Networking services e.g. Direct Connect, Express Route, Partner Interconnect, VPC, vNet, Transit Gateway, vWAN & vHub)  Orchestration/automation/IaC tools such as Ansible or Terraform, GitLab  IP Network routing
- OSPF, BGP  DNS and DHCP protocols  Network Address Translation (NAT)  API integration and management As well as a good understanding of:  Physical and virtual server configuration  A DDI (DNS/DHCP/IP Address Management) product, most beneficially this being EfficientIP, but also Infoblox, Bluecat or other  Cloud DNS services such as Route53 or equivalent  Algosec FireFlow/Firewall Policy Management or equivalent technologies  Firewall platform hardware, virtualisation, software, management and logging in order of preference by vendor: 1. Fortinet 2. Checkpoint 3. Other major firewall vendor e.g. Palo Alto, Cisco  Firewall Policy design and implementation  Intrusion Detection/Protection (IDS/IPS) systems

📌 Information Technology Network Engineer (Sydney)
🏢 Ampstek
📍 Sydney