Network Engineer

Centorrino Technologies Pty Ltd.; City of Melbourne; Hybrid; AUD 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid working

Training and development

Tech discounts

IT equipment program

Team events

Job summary

Centorrino Technologies Pty Ltd. in Melbourne is seeking a Network Engineer to support, maintain and optimise networks for SMB clients. You will work across switching, routing, firewalls, wireless and VPNs to ensure secure and reliable networks.

The role requires hands-on experience with Cisco, Aruba, Fortinet, Juniper and Palo Alto devices, and a focus on documentation, change management and proactive improvements. Hybrid work and ongoing training are provided.

Qualifications

• Experience working as a Network Engineer across switching, routing, firewalls, wireless and VPN technologies.
• Strong knowledge of Cisco routers, Aruba switches, Fortinet, Juniper and Palo Alto firewalls.
• Strong understanding of enterprise switching technologies including VLANs, Spanning Tree, HSRP/VRRP and LAG.
• Experience configuring and troubleshooting firewalls, wireless controllers, access points, routing protocols and IPsec site-to-site VPNs.
• Experience supporting Small and Medium Business clients, with the ability to balance technical outcomes with practical and commercially aware solutions.
• Experience planning and delivering network changes, upgrades and incident responses with strong documentation and risk management.

Responsibilities

• Troubleshoot and resolve BAU network incidents and escalations across switching, routing, firewalls, wireless, VPNs and application-level firewall controls.
• Analyse complex network issues and restore services within agreed service levels, minimising client impact and repeat incidents.
• Monitor network performance and health, proactively identifying opportunities for patching, optimisation, capacity upgrades and improved reliability.
• Plan, implement and support network changes and upgrades, including firewall policies, routing, wireless deployments and infrastructure enhancements.
• Manage BGP routing configurations and troubleshoot peering issues to support network stability and effective path selection.
• Monitor and maintain IPsec site-to-site VPNs, resolving encryption, authentication, connectivity and tunnel stability issues.
• Ensure wireless networks provide appropriate coverage, performance and security, addressing interference, roaming and configuration issues.
• Maintain accurate network documentation, including diagrams, configuration standards, operational procedures and change records.
• Collaborate with internal teams and SMB clients to deliver secure, scalable and practical network solutions aligned to business requirements.
• Communicate technical issues, risks and recommendations clearly to clients and internal stakeholders.
• Identify and implement proactive improvements across client network environments.

Skills

Networking

Switching

Routing

Firewalls

Wireless

VPNs

IPsec

Documentation

Client communication

Tools

Cisco routers

Aruba switches

Fortinet

Juniper

Palo Alto

Job description

Join Centorrino Technologies: Innovate, Grow, and Thrive with Us!

At Centorrino Technologies (CT), we’re more than just tech—we’re a community that goes beyond expectations. We’ve been recognised as a Great Place to Work in 2025 and Top 5 Inspiring Workplaces for 2026, with an outstanding eNPS score of 68. And we’re not stopping there. We're on a mission to redefine the customer experience, and we need a passionate Network Engineer to join our Small & Medium Business team in Melbourne.

The Network Engineer is responsible for supporting, maintaining and improving network environments across CT’s Small and Medium Business client base. The role provides hands‑on technical expertise across switching, routing, firewalls, wireless, VPNs and voice services, ensuring client networks remain secure, stable and reliable.

What you’ll do:

• Troubleshoot and resolve BAU network incidents and escalations across switching, routing, firewalls, wireless, VPNs and application-level firewall controls.
• Analyse complex network issues and restore services within agreed service levels, minimising client impact and repeat incidents.
• Monitor network performance and health, proactively identifying opportunities for patching, optimisation, capacity upgrades and improved reliability.
• Plan, implement and support network changes and upgrades, including firewall policies, routing, wireless deployments and infrastructure enhancements.
• Manage BGP routing configurations and troubleshoot peering issues to support network stability and effective path selection.
• Monitor and maintain IPsec site-to-site VPNs, resolving encryption, authentication, connectivity and tunnel stability issues.
• Ensure wireless networks provide appropriate coverage, performance and security, addressing interference, roaming and configuration issues.
• Maintain accurate network documentation, including diagrams, configuration standards, operational procedures and change records.
• Collaborate with internal teams and SMB clients to deliver secure, scalable and practical network solutions aligned to business requirements.
• Communicate technical issues, risks and recommendations clearly to clients and internal stakeholders.
• Identify and implement proactive improvements across client network environments.

What you’ll bring:

• Experience working as a Network Engineer across switching, routing, firewalls, wireless and VPN technologies.
• Strong knowledge of Cisco routers, Aruba switches, Fortinet, Juniper and Palo Alto firewalls.
• Strong understanding of enterprise switching technologies including VLANs, Spanning Tree, HSRP/VRRP and LAG.
• Experience configuring and troubleshooting firewalls, wireless controllers, access points, routing protocols and IPsec site-to-site VPNs.
• Experience supporting Small and Medium Business clients, with the ability to balance technical outcomes with practical and commercially aware solutions.
• Experience planning and delivering network changes, upgrades and incident responses with strong documentation and risk management.
• Understanding of voice and SIP call flow troubleshooting, with Microsoft Teams, SBC and AudioCodes experience highly regarded.
• Strong troubleshooting, analytical and problem-solving skills, with the ability to work through complex network issues independently.
• Excellent communication and interpersonal skills, with the ability to explain technical information clearly to clients and internal stakeholders.
• Proactive and accountable approach, with a willingness to learn, develop technical knowledge and take ownership of assigned work.

Why You’ll Love Working Here:

Our company is more than just a workplace, it's a hub of inspiration and creativity where employees love to work! Here's why:

• Hybrid working (for majority of our roles) with team anchor days to support collaboration.
• Extensive training and development opportunities that enable continual growth as part of your career planning.
• Extensive discounts and benefits to maximise your money.
• A choice of your IT equipment to maximise your success and access to cost-price tech for your personal needs.
• Fun team events to celebrate achievements and connect with colleagues outside work as part of our engaging culture.

CT celebrates diversity and enables every voice to be heard as we drive to create the world we want. Apply today and be part of a team that values innovation, inclusivity, variety and diverse backgrounds.

Note: A valid Vulnerable People / Working with Children Check (WWCC) and Police Check are required.