Senior Technical Specialist

Senior Technical Specialist

Date: 3 Jun 2026

Location: Macquarie Park, Australia

Company: Singtel Group

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

The Senior Technical Specialist designs and implements IP-based platform infrastructure and service solutions, ensuring alignment with architecture standards and business requirements. The role involves developing low-level designs, configuring automation tools, and supporting testing and deployment across production networks. It requires strong expertise in routing, switching, firewall configuration, data centre networking (VXLAN/EVPN), and hands-on experience with major vendor equipment, along with flexibility for after-hours implementation and troubleshooting.

Your day to day will consist of

• Design IP network connectivity solutions aligned with platform architectures and standards.
• Support onboarding and integration of new routers and switches into the network.
• Coordinate with stakeholders to resolve design, process, and requirement-related issues.
• Provide feasibility studies and impact assessments for projects.
• Offer technical support during critical incidents from a design perspective.
• Develop and review solution designs, documentation, and collaborate with teams and vendors.
• Build strong stakeholder relationships, communicate solutions clearly, manage vendors, and proactively address risks while supporting project escalations.

What makes you perfect for the role

• Bachelor’s degree in Engineering (Computer Science, Electrical, or related field).
• 15+ years of IP network engineering experience, including 5+ years in leadership roles and delivering large-scale projects.
• Strong expertise in end-to-end design and lifecycle management of core telco technologies (BNG, CGNAT, DC fabric, firewalls, and edge routers).
• Deep knowledge of networking protocols and technologies (TCP/IP, BGP, OSPF, MPLS, SRv6, EVPN, VPNs, QoS, and traffic engineering).
• Experience in scalable architecture design, network automation, intent-based networking, and mobile network technologies (3G/4G/5G, IMS, VoLTE/VoWifi/VoNR, RAN).
• Advanced network security knowledge including IPSEC, DDoS mitigation, Zero Trust, and secure network design practices.
• Strong leadership and business skills, including stakeholder communication, team mentoring, decision-making, commercial awareness, and compliance management.

What’s in it for you?

• 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.
• 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.

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 [email protected] or call 1800 309 170. We're here to help.

For more information on Diversity, Inclusion & Belonging at Optus, please visit https://www.optus.com.au/about/inclusion-diversity