Data Network Engineer - Juniper / Cisco | ITS & OT Networks

Montagu Group Pty LTD; Brisbane; Hybrid; AUD 110,000 - 150,000; Full time

Job summary

Montagu Group Pty LTD seeks an experienced Data Network Engineer for a major Queensland Government department. You'll manage WAN/LAN and data centre networks, with emphasis on Juniper and Cisco devices, and implement cloud/hybrid connectivity across on-premises and OT services.

You will handle BGP/OSPF/MPLS/VXLAN/EVPN, firewall and VPN support, and drive automation, documentation and incident resolution in an ITIL-aligned environment.

Qualifications

• Strong hands-on enterprise networking experience with Juniper and Cisco
• In-depth knowledge of BGP, OSPF, MPLS, VXLAN and EVPN
• Track record designing and supporting enterprise WAN, LAN and data centre environments
• Cloud and hybrid networking experience connecting cloud, data centre and OT networks
• Strong network security skills (firewalls, VPNs, segmentation, access controls)
• Proven troubleshooting ability in multi-vendor environments
• Experience with network monitoring, asset and configuration management, and lifecycle planning
• ITIL experience covering Incident, Problem, Change and Configuration Management
• Excellent documentation, communication and stakeholder skills

Responsibilities

• Designing, building and supporting complex WAN, LAN, data centre, field and ITS/OT networks
• Managing Juniper and Cisco routing, switching and firewall technologies
• Designing and supporting cloud and hybrid connectivity, routing, segmentation and integration with on-premises services
• Configuring and troubleshooting BGP, OSPF, MPLS, VXLAN and EVPN
• Supporting firewalls, VPNs, remote access and access controls
• Resolving complex incidents across physical, virtual, cloud and operational environments
• Driving improvements through automation, scripting and infrastructure-as-code
• Planning and delivering upgrades and migrations with minimal disruption to critical services
• Keeping network designs, diagrams, procedures and standards up to date
• Working with architects, operational stakeholders, vendors and service providers in an ITIL-aligned environment

Skills

Juniper

Cisco

BGP

OSPF

MPLS

VXLAN

EVPN

WAN/LAN

Data centre

Cloud networking

Security

Troubleshooting

Monitoring

ITIL

Documentation

Stakeholders

Job description

About the opportunity

Our client, a major Queensland Government department, needs an experienced Data Network Engineer to join its ITS Data Network Services team. You’ll look after the networks behind critical Intelligent Transport Systems (ITS) and Operational Technology (OT) services, where availability, resilience and security really matter.

• Location: Carseldine, with 50% working from home
• Current Contract: 30 November 2026 to 26 November 2027
• Applications close: Thursday 12 November 2026

What you’ll be doing

• Designing, building and supporting complex WAN, LAN, data centre, field and ITS/OT networks
• Managing Juniper and Cisco routing, switching and firewall technologies
• Designing and supporting cloud and hybrid connectivity, routing, segmentation and integration with on-premises services
• Configuring and troubleshooting BGP, OSPF, MPLS, VXLAN and EVPN
• Supporting firewalls, VPNs, remote access and access controls
• Resolving complex incidents across physical, virtual, cloud and operational environments
• Driving improvements through automation, scripting and infrastructure-as-code
• Planning and delivering upgrades and migrations with minimal disruption to critical services
• Keeping network designs, diagrams, procedures and standards up to date
• Working with architects, operational stakeholders, vendors and service providers in an ITIL-aligned environment

What you’ll bring

• Strong hands-on enterprise networking experience, especially with Juniper and Cisco
• In-depth practical knowledge of BGP, OSPF, MPLS, VXLAN and EVPN
• A track record designing and supporting enterprise WAN, LAN and data centre environments
• Cloud and hybrid networking experience, connecting cloud, data centre and operational networks
• Strong network security skills (firewalls, VPNs, segmentation, access controls)
• Proven troubleshooting ability in multi-vendor environments
• Experience with network monitoring, asset and configuration management, and lifecycle planning
• ITIL experience covering Incident, Problem, Change and Configuration Management
• Excellent documentation, communication and stakeholder skills

Highly regarded

• Experience with networks in OT, ITS, industrial or other critical infrastructure
• Automation with Python, PowerShell, APIs or infrastructure-as-code
• Network telemetry and automated operational processes
• Experience supporting spread-out infrastructure across data centres, field sites and remote locations
• Relevant networking, security or cloud certifications
• Public and private sector experience

Good to know

You’ll need to be available for on-call and after-hours work, such as planned maintenance and incident response. There will also be occasional travel within Queensland to operational and field sites.