Senior Telco Network Engineer - F5 BIG-IP & GSLB Expert

XPT Software; Sydney; On-site; AUD 180,000 - 240,000; Full time

Job summary

XPT Software is seeking a Senior Telco Network Engineer in Australia to design, operate, and optimise secure proxy platforms and global server load balancing across a multi-vendor environment. The role focuses on high availability, performance, and security for customer-facing and internal services.

You will lead engineering efforts for F5 BIG-IP platforms, Fortinet/ FortiGate, and related proxy services, while collaborating with architecture, security, cloud, and operations teams to improve

Qualifications

• 10+ years in telco/networking with production experience.
• Hands-on F5 BIG-IP LTM and GTM/GSLB mandatory.
• Experience with load balancers, proxies, and high-availability in multi-vendor environments.

Responsibilities

• Design, deploy, administer, and troubleshoot F5 BIG-IP platforms, including LTM, GTM/GSLB, virtual servers, pools, nodes, health monitors, SSL profiles, iRules, and traffic policies.
• Operate and optimise GSLB services, including DNS-based traffic distribution, data-centre failover, geographic load balancing, latency-based routing, and disaster-recovery scenarios.
• Support telco proxy and secure web gateway services, including URL filtering, authentication, SSL inspection, policy enforcement, allow/block lists, and web-traffic routing.
• Configure and maintain network security controls, including firewalls, VPNs, NAT, access-control policies, certificates, and high-availability architectures.
• Investigate and resolve complex Level 3 incidents affecting proxy, load-balancing, DNS, routing, switching, and security services within agreed SLAs.
• Lead network changes, migrations, upgrades, implementation testing, rollback planning, and post-implementation validation.
• Work with architecture, security, cloud, and operations teams to improve resilience, automation, observability and service performance.
• Produce high-quality design documents, runbooks, change requests, test plans, and incident reports.

Skills

F5 BIG-IP

LTM

GTM/GSLB

TCP/IP networking

SSL offload

DNS & GSLB

Firewall & security

Incident management

Python scripting

Tools

Fortinet FortiGate

VMware

OpenStack

AWS

Azure

Job description

XPT Software is seeking a Senior Telco Network Engineer in Australia to design, operate, and optimise secure proxy platforms and global server load balancing across a multi-vendor environment. The role focuses on high availability, performance, and security for customer-facing and internal services.

You will lead engineering efforts for F5 BIG-IP platforms, Fortinet/ FortiGate, and related proxy services, while collaborating with architecture, security, cloud, and operations teams to improve