Senior Technical Specialist

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 & Security Technical Specialist / Senior Technical Specialist plays a critical role in maintaining the performance, availability, and customer experience of the Optus Network. This is achieved through hands-on operational execution and the technical governance of suppliers, focusing on service assurance areas such as Change, Problem, and Incident Management.

The role is part of a Tier 2 Network Operations team based in the Optus Network Operations Centre in Macquarie Park and we are looking to fulfil roles that involve 24x7 as well as 9-5 rostered coverage.

In this position, the Specialist will deliver high-quality support, provide leadership to less experienced team members, and act as a key liaison between internal teams and external partners. The role requires collaboration with Managed Service Suppliers, equipment vendors, and Network Engineering teams to support the successful rollout of new technologies, continuous service improvement initiatives, and alignment with Optus’ broader network strategy.

• Location: 100% on site at Macquarie Park, Sydney


• Work Pattern: either Rotating shift roster, including morning, afternoon and night OR Monday to Friday, 9am - 5pm

Ready to reimagine your career at Optus?

• Rapidly resolve complex network faults beyond the Managed Service’s scope and manage critical incident escalations to minimise customer impact.


• Lead root cause analysis, implement permanent corrective actions, and participate in change governance including representation at Change Advisory Board meetings.


• Recommend and approve network design changes to improve service reliability and support the introduction of new technologies and products.


• Ensure planned network upgrades and deployments are aligned with quality and performance standards, and contribute to network expansion strategies.


• Work closely with Engineering, Vendors, and Managed Service Suppliers to align operational processes and architecture standards, ensuring technical supportability.


• Provide regular technical insights into KPIs and SLAs, identify performance gaps, and support resolution efforts through stakeholder collaboration.


• Drive continuous improvement initiatives through automation of incident management and alarm handling, while contributing to the evolution of operational tools and strategies.

It starts with you!

• Extensive hands-on expertise in maintaining and troubleshooting multi-vendor (Cisco, Juniper, Nokia, Fortinet, Checkpoint, …) IP and security networks in a Tier 2 or Tier 3 environment.


• Strong understanding of service provider network design, routing and switching, and security practices.


• Experience with network automation tools such as Python and Ansible is desirable.

IP Operations:

• Strong understanding of DDoS protection, detection, and mitigation strategies.


• High proficiency in IP/MPLS technologies, including BGP, OSPF, IS-IS, and Segment Routing.


• Demonstrated capability in maintaining and troubleshooting large-scale IP/MPLS networks within service provider environments.


• Cisco CCNP SP and above, and/or equivalent vendor certifications (Juniper, Nokia, etc.) are desirable.

The good stuff…

• Supportive team and office environment, with vibrant campus life, variety of facilities including restaurants, cafes, gymnasium, GP, and post office.


• Free Optus bus from Macquarie University Metro Station (every 6-8 minutes); morning and afternoon, or paid secure parking facilities available!


• Inclusive paid parental leave, up to 16 weeks for the primary care giver.


• Competitive leave including 2 additional 'Connected Leave' days.


• All Optus employees have access to resources, webinars and support via the ‘Parents at Work portal’.


• Own your own growth by accessing an extensive online and facilitator led learning catalogue.


• Connect at work through our employee-led volunteer groups: Culture Connect, Elevate Women, Disability Network, Express Yourself (LGBTQIA+), United Veterans, Yarn Network, Wellbeing Network and Young Professionals.

Curious about our culture? Go behind the scenes with our people by searching #OptusLife on LinkedIn.

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. 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 https://www.optus.com.au/about/inclusion-diversity.

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