Network Engineer

Green Light; Melbourne; Hybrid; AUD 120,000 - 160,000; Full time

Job summary

Green Light is seeking a hands-on Network Engineer to design, implement, and support our enterprise data center and security infrastructure in Ringwood, Melbourne. You will own the Cisco ACI fabric architecture and Fortinet security estate, building and troubleshooting the environment with a focus on resilience and security.

You will collaborate with infrastructure, security, and application teams to deliver scalable network services, mentor junior engineers, and drive migrations and upgrades

Qualifications

• Hands-on experience designing and implementing Cisco ACI in production environments.
• Strong, hands-on expertise with the Fortinet firewall suite (FortiGate, FortiManager, FortiAnalyzer).
• Deep understanding of BGP and OSPF, including troubleshooting in large-scale networks.
• Solid grasp of data center networking concepts (VXLAN, spine-leaf, L2/L3).
• Strong troubleshooting with packet capture, logs, and monitoring tools.
• Ability to document designs clearly and communicate with technical and non-technical stakeholders.

Responsibilities

• Design and implement Cisco ACI fabrics, including tenants, VRFs, bridge domains, EPGs, contracts, L3Outs, and multi-site or multi-pod architectures.
• Architect, deploy, and troubleshoot Fortinet security suite (FortiGate, FortiManager, FortiAnalyzer).
• Design and manage routing using BGP and OSPF across data center, WAN, and perimeter environments.
• Produce high-level and low-level designs, standards, and runbooks; lead design reviews.
• Act as escalation point for complex network/security incidents; perform root cause analysis and permanent fixes.
• Plan migrations, upgrades, and changes with minimal service disruption.
• Evaluate new technologies and recommend improvements in performance, security, and automation.
• Mentor network engineers and collaborate with security, cloud, and application teams.

Skills

Cisco ACI design

Fortinet security concepts

BGP & OSPF

VXLAN/Data center concepts

Troubleshooting

Documentation

Tools

Cisco ACI

FortiGate

FortiManager

FortiAnalyzer

Job description

• 6-Month Assignment with potential to convert to perm
• Hybrid
• Ringwood, Melbourne

• 6-Month Assignment with potential to convert to perm
• Hybrid
• Ringwood, Melbourne

Green light is looking for a hands‑on Network Engineer to design, implement, and support our enterprise data center and security infrastructure. You will own the architecture for our Cisco ACI fabric and Fortinet security estate, and you will also build, troubleshoot, and optimize the environment yourself. You will work closely with infrastructure, security, and application teams to deliver resilient, secure, and scalable network services.

Key Responsibilities

• Design and implement Cisco ACI fabrics, including tenants, VRFs, bridge domains, EPGs, contracts, L3Outs, and multi-site or multi-pod architectures.
• Architect, deploy, and troubleshoot the Fortinet security suite, including FortiGate firewalls, FortiManager for centralized policy and device management, and FortiAnalyzer for logging, reporting, and analytics.
• Design and manage routing using BGP and OSPF across data center, WAN, and perimeter environments, including route policy, redistribution, and convergence tuning.
• Produce high‑level and low‑level designs, standards, and runbooks, and lead technical design reviews.
• Act as the escalation point for complex network and security incidents, performing root cause analysis and driving permanent fixes.
• Plan and execute migrations, upgrades, and change activities with minimal service disruption.
• Evaluate new technologies and recommend improvements in performance, security, and automation.
• Mentor network engineers and collaborate with security, cloud, and application teams.

Required Skills and Experience

• Proven experience designing and implementing Cisco ACI in production environments.
• Strong, hands‑on expertise with the Fortinet firewall suite, including FortiManager and FortiAnalyzer, covering design, implementation, and troubleshooting.
• Deep understanding of BGP and OSPF, including path selection, policy control, and troubleshooting in large‑scale networks.
• Solid grasp of data center networking concepts such as VXLAN, spine‑leaf architecture, and L2/L3 segmentation.
• Strong troubleshooting skills with packet capture, logs, and monitoring tools.
• Ability to document designs clearly and communicate with both technical and non‑technical stakeholders.

About the company

We are an Australian onshore services company that provides technology capability across ANZ and Asia. Our services range from day‑to‑day operational activities, through project delivery, to more strategic and transformational programs. At Green Light, we are committed to creating a diverse and inclusive workplace where everyone feels valued and respected. We are proud to be an equal opportunity employer and do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

We encourage applications from all backgrounds and communities, and we are dedicated to providing a fair and accessible recruitment process for all candidates. During the recruitment process, if you require any accommodations or modifications please reach out to ***************@greenlightworldwide.com or call [phone].