Senior Engineer

Due to the requirements of the role, we are only able to consider applicants who hold full Australian Citizenship. Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions. Join Optus Enterprise as a Network Engineer within our GTAC Networks team, where you’ll play a critical role in delivering high-quality managed network services for enterprise customers across Australia. You’ll be responsible for resolving complex network incidents, implementing and managing changes, and supporting enterprise, data centre, and wireless environments using technologies such as Cisco, Aruba, and Riverbed. This role suits an experienced engineer who thrives in an operational ITIL-based environment, enjoys problem-solving at scale, and is passionate about customer outcomes, automation, and continuous improvement. What You’ll Do Troubleshoot and resolve complex network incidents across enterprise, data centre, and wireless environments, ensuring SLAs are met. Implement and manage network changes, upgrades, and patching in line with ITIL change and problem management processes. Configure, support, and maintain network infrastructure using technologies such as Cisco, Aruba, and Riverbed. Collaborate with customers, service management, and internal delivery teams, providing clear communication and technical guidance. Identify opportunities to improve operational efficiency through automation, scripting, documentation, and continuous improvement initiatives What makes you perfect for the role? Strong hands-on experience supporting and operating complex enterprise networks, with the ability to troubleshoot and resolve high‑impact incidents. Technical capability across routing, switching, data centre, and wireless technologies, ideally including Cisco, Aruba, and Riverbed. Proven experience working in an ITIL-driven managed services environment, with end‑to‑end ownership of incidents, problems, and changes. Clear and professional communication skills, with the ability to engage customers and stakeholders during critical or high‑pressure situations. A continuous improvement mindset, demonstrated through automation, scripting, strong documentation, and staying current with emerging network technologies. 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. 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. For more information on Diversity, Inclusion & Belonging at Optus, please visit https://www.optus.com.au/about/inclusion-diversity