Senior L3 Network Engineer – Data Centre Reliability

Logicalis Australia Pty Ltd; Sydney, Melbourne; Hybrid; AUD 140,000 - 210,000; Full time

Benefits offered by this job

Flexible working

Employee Assistance Program

Paid parental leave

Novated leasing

Job summary

Logicalis Australia Pty Ltd seeks an experienced Network Engineer (L3) to join the Infrastructure Support Services team in Sydney or Melbourne. You will act as the escalation point for critical network incidents, lead root-cause analysis, and drive improvements across enterprise data centre environments.

You will mentor L1/L2 teams, coordinate with vendors, and ensure security and high availability in large-scale networks while contributing to automation initiatives and best-practice

Qualifications

• 10+ years of Network Engineering experience.
• Experience as L3 escalation point for critical incidents.
• Strong troubleshooting across switching, routing, firewalls and wireless.
• Experience in enterprise, managed services, or data centre environments.
• Proven P1/P2 incident management and RCA skills.
• Solid ITIL service management understanding.
• Excellent communication and stakeholder engagement.
• Experience mentoring L1/L2 teams.
• Cisco, Palo Alto, Fortinet or Juniper certifications.
• Experience with hyperscale, cloud, or data centre environments.
• Automation and scripting experience.

Responsibilities

• Act as Level 3 escalation point for critical network incidents.
• Lead troubleshooting, root cause analysis and permanent remediation.
• Support highly available data centre and enterprise networks.
• Participate in 24x7 on-call roster for Priority 1/2 incidents.
• Perform network lifecycle management including patches and upgrades.
• Drive operational excellence through automation and monitoring.
• Collaborate with vendors, internal teams and project stakeholders.
• Maintain security, resilience and performance of critical infrastructure.
• Produce and maintain runbooks and procedures.

Skills

L3 escalation

Incident management

Troubleshooting

Data centre networks

ITIL practices

Mentoring L1/L2

Vendor coordination

Automation & scripting

P1/P2 incident handling

Security clearance awareness

Networking certifications

Networking design & HA

Tools

Cisco certs

Palo Alto certs

Fortinet certs

Juniper certs

Job description

Logicalis Australia Pty Ltd seeks an experienced Network Engineer (L3) to join the Infrastructure Support Services team in Sydney or Melbourne. You will act as the escalation point for critical network incidents, lead root-cause analysis, and drive improvements across enterprise data centre environments.

You will mentor L1/L2 teams, coordinate with vendors, and ensure security and high availability in large-scale networks while contributing to automation initiatives and best-practice