Network & Security Engineer

Salary: $135,000 package including Superannuation

The opportunity

Marble Arch Consulting Group (MAC) is seeking an experienced Network & Security Engineer to join our Managed Services team in Alexandria, Sydney.

You’ll help maintain the operational health of the network and security infrastructure we manage for our customers. This hands-on role covers enterprise routing and switching, wireless, load balancing and security platforms, with opportunities to resolve complex incidents, deliver approved changes and support new solution implementations.

As an experienced member of the team, you’ll act as an escalation point for junior engineers, take a leading role during major incidents and contribute to the team’s technical development.

What you’ll be doing

• Monitor customer network and security environments and respond to alerts

• Investigate and resolve incidents, service requests and work orders within agreed SLAs

• Lead the resolution of complex and major incidents

• Own tickets throughout their lifecycle, coordinating with vendors and technical teams

• Implement standard and approved changes, including occasional out-of-hours changes

• Support Cisco routing, switching and wireless infrastructure

• Operate and support Fortinet security platforms

• Develop runbooks, knowledge articles and operational procedures

• Onboard and maintain customer devices within SolarWinds and PRTG

• Provide accurate handovers for open incidents and in-flight changes

• Mentor junior engineers and support their technical development

• Assist with implementations, migration planning, testing and as-built documentation

• Support the successful transition of new solutions into production

• Contribute to service reporting and continuous improvement

What you’ll bring

• Three to five years’ hands-on experience supporting enterprise network and security infrastructure

• Experience gained in an MSP, enterprise service desk or comparable operational environment

• Operational experience with Fortinet FortiGate and FortiManager

• Cisco routing and switching experience, including Catalyst and ASR

• Experience with Cisco Nexus/NX-OS and/or Cisco wireless technologies such as Prime, WLC, Spaces or ISE

• Experience working within ITIL incident, change and problem-management processes

• Experience using network monitoring and IT service-management or ticketing systems

• Cisco CCNA or equivalent knowledge demonstrated through practical experience

• A structured approach to troubleshooting and incident resolution

• Clear written and verbal communication skills

• Willingness and eligibility to work staggered rostered hours and participate in an on-call rotation

We’re interested in capable engineers, not applicants who match every keyword. Equivalent platforms and demonstrable practical experience will be considered.

Desirable, but not essential

Experience with any of the following would be valuable:

• Palo Alto firewalls and Panorama

• Zscaler Branch Connector or Zscaler Internet Access

• Aruba switching, wireless or ClearPass

• Cisco CUCM or Webex Cloud

• F5 or comparable load-balancing platforms

• MPLS and SD-WAN

• ServiceNow, SolarWinds or PRTG

• Network scripting or automation

• CCNP, Fortinet certification, ITIL Foundation or relevant tertiary qualifications

What we offer

We invest in our engineers and provide training based on individual development needs. This may include:

• Fortinet security training

• Cisco and Zscaler specialist courses

• Cisco and Aruba wireless technologies

• F5 load balancing

• SolarWinds and PRTG administration

• ITIL certification

You’ll join a collaborative team where you can broaden your technical experience, work across varied customer environments and make a visible contribution to the continued development of our managed services.

Apply now to join MAC’s Sydney Managed Services team.