Senior Network Engineer
Summary
A contract Senior Network & Security Engineer role in Sydney supporting mission-critical enterprise network services: day to day the engineer manages Cisco routing/switching and firewalls, administers F5 load balancing, remediates vulnerabilities, and leads upgrades, documentation, and troubleshooting. Core tech: Cisco, F5 (LTM/GTM/BIG-IQ), Palo Alto, Cisco ASA/FTD.
Salary: $688.80 daily plus super
Senior Network Engineer
Join a high-performing infrastructure team supporting and enhancing critical enterprise network services. We are seeking an experienced Senior Network & Security Engineer with strong expertise across Cisco, F5, and Palo Alto technologies.
Key ResponsibilitiesRemediate network vulnerabilities and implement security hardening initiatives.
Manage and support Cisco routing, switching, wireless, firewall, and network management platforms.
Administer F5 load balancing technologies (LTM, GTM, BIG-IQ).
Support Palo Alto and Cisco ASA/FTD firewall environments.
Deliver network upgrades, enhancements, and infrastructure changes.
Produce implementation plans, technical documentation, and change records.
Lead troubleshooting, incident resolution, and root cause analysis activities.
Recommend improvements to network performance, resilience, and security.
Cisco ICND2 (or equivalent) certification.
F5-CA (or equivalent) certification.
Strong hands-on experience with Cisco networking, Palo Alto firewalls, and F5 technologies.
Experience in enterprise network security, vulnerability remediation, and infrastructure hardening.
Excellent troubleshooting and stakeholder communication skills.
Travel to multiple office locations may be required.
Opportunity to work within a complex, mission-critical environment supporting key business services.