Senior Network Engineer

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 Network Engineer, within the Network Service & Experiences Team (NSET), is responsible for ensuring the availability and efficient performance of the Optus network to deliver outstanding customer experiences. Based at Macquarie Park, this role involves monitoring and analysing service indicators using specialised observation tools, diagnosing issues across multiple technology domains, and engaging relevant NMC teams to maintain critical services.

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


• Work Pattern: Rotating shift roster, including morning, afternoon and night (24/7)

The day to day

• Proactively monitor network performance and health, to sustain reliable service availability. 


• Liaise with relevant authorities to provide support for location triangulation, call tracing, and other authorised information requests.


• Manage escalations of critical or sensitive issues.  


• Troubleshoot network issues, analyse performance data, and support incident response and disaster recovery activities.


• Recommend and implement continuous improvements to service monitoring and network resilience.

What you Bring

• Tertiary qualifications in IT, software engineering, telecommunications, or equivalent experience; data science/analytics qualifications also valued.


• Solid understanding of Network Operations, including business processes and ITIL best practices.


• Broad knowledge of modern telecommunications networks, particularly Mobile and Consumer Internet.


• Demonstrable ability to make sound decisions, remain composed, and prioritise effectively under pressure.


• Hands-on experience with platforms such as 4G/5G RAN or Mobile Core, Fixed Voice Core, IMS, IP infrastructure, or Core Transmission.


• Demonstrated technical versatility across multi-vendor environments and complex network domains.

What’s in it for you?

• 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 carer neutral paid Parental Leave of up to 16 weeks


• Competitive leave including 2 '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.

Keen to see what it’s really like to work at Optus? Search #OptusLife on LinkedIn to go behind the scenes!

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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