Contract through to 31 December 2026 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 solid 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 environment.

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

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📌 Network Services Engineer (Sydney)
🏢 Qix Consulting
📍 Sydney