Senior Telco Network Engineer

XPT Software Australia Pty Ltd; Sydney; On-site; AUD 150,000 - 190,000; Full time

Job summary

XPT Software Australia Pty Ltd in Sydney is seeking a Senior Telco Network Engineer to design, operate, and optimise secure web proxy platforms and global server load balancing across a multi-vendor environment.

You will work with architecture, security, cloud and operations teams to ensure high availability, performance, and security of customer-facing services, lead changes and incidents, and produce runbooks and design documents.

Qualifications

• 10+ years in telco, ISP, managed services, data centre, or large enterprise networking.
• Hands-on F5 BIG-IP experience (LTM, GTM/GSLB), application delivery and SSL offloading.
• Strong knowledge of TCP/IP, HTTP/HTTPS, DNS, SSL/TLS, routing, switching, BGP/OSPF, VRF, NAT, IPv6.
• Experience with production proxy or secure web gateway platforms.
• Experience with high-availability designs, load balancing, failover and large-scale traffic management.
• Strong incident-management, root-cause-analysis and stakeholder-communication skills.
• Fortinet experience (FortiGate/FortiOS), NSE certification desirable.
• Virtualization and cloud experience (VMware, KVM, OpenStack, AWS, Azure).
• Scripting experience, preferably Python.
• Certifications such as F5 CA/CTS, Fortinet NSE, CCNP are advantageous.

Responsibilities

• Design, deploy, administer, and troubleshoot F5 BIG-IP platforms (LTM, GTM/GSLB).
• Operate and optimise GSLB services and DNS-based traffic distribution.
• Support telco proxy and secure web gateway services with URL filtering and SSL inspection.
• Configure network security controls including firewalls, VPNs, NAT, and high-availability architectures.
• Investigate and resolve Level-3 incidents within SLAs.
• Lead changes, migrations, testing, rollback planning, and post-implementation validation.
• Collaborate with architecture, security, cloud and operations teams to improve resilience and observability.
• Produce design documents, runbooks, change requests, test plans and incident reports.

Skills

Incident management

Stakeholder communication

High availability design

TCP/IP/DNS/HTTP(S)

Network security

Tools

F5 BIG-IP

LTM

GTM/GSLB

SSL offloading

iRules

Fortinet FortiGate/FortiOS

Fortinet NSE

VMware

KVM

OpenStack

AWS

Azure

Python scripting

Job description

XPT Software Australia Pty Ltd | Full time

Sydney, Australia

• XPT SoftwareAustralia PTY Ltd, incorporated in 2016, is a Software Services company
  
• XPT works with topclients across Australia in Banking, Insurance, Telecom,Retail, Energy, Mining and Manufacturingdomains.
  
• We have 120+technocrats in Australia working at our clientlocations.
  
• XPT SoftwareAustralia is part of group companies which has globalpresence across India & Europe.
  
• We have served100+ clients globally, fulfilling their onsite-offshoreneeds.
  

Job Description

Senior Telco Network Engineer — Forward & Reverse Proxy (Fortinet/F5)Experience: 10+ years in telecommunications, service-provider or large enterprise network operationsMandatory: Hands-on F5 BIG-IP experience, Forward and Reverse Proxy experience is required for both Fortinet and F5.Desirable : LB and GSLB experience should be desired.

Role overview:We are seeking a senior network engineer to design, operate, and optimise critical telco network services, including secure web proxy platforms and global server load balancing (GSLB). You will ensure high availability, performance, and security of customer-facing and internal services across a complex multi-vendor environment. Comparable telco network-security roles combine firewall, proxy, load-balancer, and incident-management responsibilities across large-scale environments.

Key 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.

Requirements

Mandatory requirements

10+ years of relevant experience in telco, ISP, managed services, data centre, or large enterprise networking.

Mandatory hands-on F5 BIG-IP experience, covering LTM and GTM/GSLB, application delivery, SSL offloading, iRules, and traffic-management policies.

Strong knowledge of TCP/IP, HTTP/HTTPS, DNS, SSL/TLS, routing, switching, BGP, OSPF, VRF, NAT, and IPv6.

Demonstrated experience supporting production proxy or secure web gateway platforms.

Experience with high-availability designs, load balancing, failover, and large-scale traffic management.

Strong incident-management, root-cause-analysis, and stakeholder-communication skills.

Preferred requirements

Fortinet experience, particularly FortiGate/FortiOS, FortiManager, and FortiAnalyzer; Fortinet NSE or equivalent certification is desirable.

Experience with telco-specific security and traffic architectures, such as Gi-LAN, CGNAT, SecGW, GTP firewalling, SASE, ZTNA, WAF, and DDoS protection.

Familiarity with virtualisation and cloud environments, including VMware, KVM, OpenStack, AWS, or Azure.

Exposure to SIEM, syslog analysis, monitoring, automation, and scripting, preferably Python.

Relevant certifications such as F5 CA/CTS, Fortinet NSE, CCNP, or equivalent are advantageous.