IP and Transport Network Technical Specialist

Date: 19 Nov 2025

Location: Macquarie Park, Australia

Company: Singtel Group

• Job Title: IP and Transport Network Technical Specialist
• JRN: 169180
• Business Unit: Networks
• Reporting to: Julian Florez, AD Enterprise Services
• Location: Sydney
• Talent Acquisition Partner: Dmitry Dyakin

Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions.

The IP and Transport Network Technical Specialist is a key role responsible for crafting, developing, and delivering carrier-grade IP and optical transport solutions that form the backbone of Optus's critical infrastructure. Reporting to the Associate Director of Enterprise Services, this position ensures the network remains scalable, resilient, and technologically advanced while managing complex environments that directly impact service quality for millions of customers.

The role involves crafting and costing customised solutions based on customer requirements, coordinating delivery through defined milestones, and providing oversight to ensure implementation aligns with original builds. Applying expertise across multi-vendor platforms and advanced technologies, the Specialist drives innovation, operational efficiency, and transformation initiatives to build a robust digital backbone for future connectivity.

What You'll Do

• Lead end-to-end development and planning for IP and optical transport solutions, including DWDM, OTN, IP/MPLS, and Carrier Ethernet, producing HLD and LLD aligned with business needs.
• Provide technical leadership and hands-on configuration across Cisco, Juniper, and Nokia platforms for routing, switching, and optical transport systems.
• Coordinate fibre network lifecycle planning, capacity management, and GIS-based mapping for optimal utilisation and fault localisation.
• Optimise network performance, troubleshoot complex issues, and implement automation solutions using NMS platforms and tools like Cisco NSO and Red Hat Ansible.
• Evaluate emerging technologies, maintain architectural documentation, and ensure compliance with internal policies and industry regulations.
• Act as a domain expert, guide multi-functional teams, mentor junior engineers, and foster a culture of technical excellence.

What You Bring

• Relevant professional qualifications in Telecommunications, Electrical Engineering, Computer Science, or related field, together with significant hands-on experience in IP and optical transport network engineering within large-scale telecom environments.
• Hands-on experience with DWDM, OTN, ROADM (Nokia optical systems), IP routing protocols (BGP, OSPF, ISIS), MPLS, VPNs, QoS, and Carrier Ethernet technologies (E-LINE, E-LAN, E-TREE).
• Proficiency with Network Management Systems (NMS), GIS tools for network planning, and multi-vendor platforms (Cisco, Juniper, Nokia).
• Preferred certifications include Cisco CCNP/CCIE Service Provider, Juniper JNCIP/JNCIE-SP, Nokia Optical Network and Service Routing certifications, and MEF Carrier Ethernet credentials.
• Experience with network automation tools and scripting (Python, Ansible, NETCONF/YANG), plus familiarity with SDN/NFV, cloud networking, and virtualisation technologies.
• Strong analytical and troubleshooting skills, superb communication, and proven ability to lead technical projects and mentor teams.

The good stuff

• Competitive remuneration and employee discounts. Make life easier (and more affordable) with $80 monthly credit and 25% off Optus products and unique shopping discounts with our retail partners.
• Flexible working arrangements with opportunities to work three days in the office, two days remote or home.
• Vibrant and collaborative office campus that includes cafes, convenience store, chill out zones, GP, post office, gym and on-site childcare centre.
• Competitive leave policies, including additional 'Connected' days to focus on culture, family, health, community, or whatever's important to you.
• We support growing families with inclusive, carer-neutral paid Parental Leave of up to 16 weeks.
• Direct your own development and build future-ready skills with Optus U's industry-focused micro-credentials, developed with La Trobe and Macquarie Universities.
• Build meaningful connections through employee-led networks and diversity initiatives including Culture Connect, Elevate Women, Disability Network and Express Yourself (LGBTQIA+).
• Put your wellbeing first with free access to counselling and support services, 24/7 — in-person, by phone, SMS, or video.
• Free Optus bus from Macquarie University Metro Station (every 6-8 minutes); morning and afternoon.

At Optus, we are strengthened by others and that means valuing diversity and saying 'yes' to embracing individual differences. We are committed to ensuring that our application process provides an equal employment opportunity to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, individuals with a disability, individuals identifying as being part of the LGBTQIA+ community, individuals who may have served in the armed forces or who identify as Aboriginal and/or Torres Strait Islander. We also want to do our best to make our recruitment process inclusive. If you require any adjustments or accessibility support to participate fairly and equitably in the recruitment process, please email or call We're here to help. When you contact us, please advise your preferred method of contact, and we will be in touch within 48 hours.

For more information on Diversity, Inclusion & Belonging at Optus, please visit