Job Description
Contract through to 31 December **** with view to extend
We're urgently seeking an experienced Senior Network Services Engineer for a contract opportunity within a major banking environment in Sydney.
This is a hands‐on senior engineering role working across complex enterprise network infrastructure, with a strong focus on F5 technologies, network security, vulnerability remediation, routing and switching, firewalls, wireless networking, and enterprise troubleshooting.
The successful candidate will be responsible for the design, configuration, implementation, security, remediation and support of critical network services within a highly regulated enterprise workplace.
The Role
Administering, configuring and troubleshooting F5 technologies, including LTM, GTM and BIG-IQ
Managing Virtual Servers, Pools, Health Monitors, SSL Offloading, High Availability and F5 upgrades
Performing network vulnerability assessment, remediation, patching and security hardening
Investigating and remediating CVEs and network security vulnerabilities
Configuring, deploying and maintaining switches, routers, firewalls and wireless infrastructure
Supporting Cisco routing and switching, including OSPF, BGP, VLANs, STP, HSRP and EtherChannel
Administering and troubleshooting Cisco ASA, Cisco FTD and Palo Alto firewalls
Managing NAT, ACLs, security policies, logging and traffic‐flow troubleshooting
Supporting wireless environments, including WLC administration, AP onboarding and WLAN configuration
Troubleshooting complex network performance, connectivity and security incidents
Managing major incidents and performing root cause analysis (RCA)
Supporting network migrations, upgrades and implementation activities




Developing detailed implementation plans, testing procedures and rollback plans
Working within formal change, release and CAB processes
Performing device configuration reviews and supporting security hardening and compliance initiatives
Working closely with Infrastructure, Cyber Security, internal stakeholders, customers and vendors
Maintaining network diagrams, operational runbooks, SOPs, implementation plans and technical documentation
Providing senior technical guidance throughout project and operational delivery
Travelling to Sydney-based sites and Data Centres as required
What We're Looking For
Minimum 5+ years' Network Engineering experience within large‐scale enterprise environments
Strong hands‐on experience with F5 technologies, particularly LTM and GTM
Experience with BIG‐IQ, Virtual Servers, Pools, Health Monitors, SSL Offloading, HA, upgrades and troubleshooting
Strong experience in network security and vulnerability remediation
Experience with patching, security hardening, CVE remediation and configuration reviews
Strong Cisco routing and switching knowledge, including OSPF, BGP, VLANs, STP, HSRP and EtherChannel
Strong firewall experience across technologies such as Cisco ASA, Cisco FTD and Palo Alto
Solid understanding of NAT, ACLs, security policies, logging and traffic‐flow analysis




Experience supporting enterprise wireless environments, including WLCs, APs and WLANs
Strong knowledge of TCP/IP, routing, switching, VPNs and network security
Demonstrated experience troubleshooting complex enterprise network incidents and performing RCA
Experience delivering network changes through structured change and release management processes
Ability to prepare detailed implementation, testing and rollback plans
Experience working collaboratively with Infrastructure and Cyber Security teams
Strong documentation skills across network diagrams, runbooks, SOPs and technical implementation documentation
Excellent stakeholder management and communication skills
Experience within banking, financial services or another highly regulated enterprise environment is highly regarded
Relevant certifications such as CCNA, CCNP, F5, Fortinet, Palo Alto or Aruba are highly regarded
White Card is desirable
Willingness to travel to customer sites and Data Centres as required
This opportunity would suit a senior Network Engineer who combines strong F5 expertise with hands‐on enterprise networking, security remediation and troubleshooting capability, and who is comfortable delivering critical network changes within a controlled and highly regulated environment.
QIX Consulting Group is committed to fostering a diverse and inclusive workplace.
We encourage applications from people of all backgrounds, experiences and identities, including Aboriginal and Torres Strait Islander peoples, people with disability, culturally and linguistically diverse communities, LGBTQIA+ people, and people of all ages.
Sterk Pty Ltd trading as QIX Consulting Group

📌 Network Services Engineer (New South Wales)
🏢 Qix Consulting
📍 New South Wales