[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All SingTel jobs](https://jobs.opennash.com/companies/singtel/) · [Search jobs](/search/) SingTel · Macquarie Park, Australia # Technical Specialist Transmission Core Macquarie Park, Australia Listed on SingTel’s official careers site. Listed as of October 20, 2026. Check that it is still open and apply there. [Apply on SingTel’s careers site →](https://groupcareers.singtel.com/job/Macquarie-Park-Technical-Specialist-Transmission-Core-Macq/1368106966/) [OpenNash Jobs](https://jobs.opennash.com/) / [SingTel](https://jobs.opennash.com/companies/singtel/) / Technical Specialist Transmission Core ## Job description Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions. The Technical Specialist collaborates closely with managed service providers, vendors, and internal engineering teams to implement network strategies and enhance operational effectiveness. This role is a feeder to the Senior Technical Specialist, and as such, provides development opportunities in stakeholder engagement, complex fault resolution, and leadership capability. Operating within a Tier 2 Network Operations team, the specialist provides 24x7 support on a rotating roster based in Network Operations Centre in Macquarie Park. In addition to resolving complex technical issues and mentoring less experienced team members, the role requires strong collaboration with managed service providers, equipment vendors, and internal engineering teams to support the implementation of network strategies, solution onboarding, and ongoing operational improvements. ### Location 100% on site at Macquarie Park, Sydney Work Pattern: Rotating shift roster, including morning, afternoon and night ### What You’ll Do Execute technical operational processes and provide technical support to maintain network availability. Respond to and assist in resolving incidents escalated by Managed Services where issues are not immediately resolvable. Support Problem Management by contributing to root cause analysis and corrective action recommendations. Manage and respond to escalations from Service Assurance Managers on critical incidents under guidance. Assist with planning and execution of network changes, expansions, and upgrades. Recommend improvements to network design to enhance performance and reliability. Ensure all planned changes meet Optus’ quality and performance policies. Support continuous improvement activities alongside Engineering, Vendors, and Managed Services. Contribute to tools strategy and automation initiatives by providing operational insights. Participate in alarm filtering, correlation analysis, and service assurance automation efforts. Provide operational input into weekly/monthly KPI and SLA reporting processes. Act as a point of knowledge for peers and contribute to team knowledge sharing and training initiatives. What You Bring A Bachelor’s Degree in Engineering, Telecommunications or Science discipline. Minimum 5 years’ hands-on experience in multi-vendor Metro/Long-Haul DWDM networks. Solid understanding of DWDM technologies (ROADM, TOADM, Optical Amplifiers), SyncE and PTP protocols. Experience supporting technology and vendors in a fast-paced operational environment. Strong problem-solving skills with the ability to investigate and escalate effectively. Strong communication and collaboration skills across technical and non-technical stakeholders. 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. 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 AccessibleRecruitment@optus.com.au or call 1800 309 170. For more information on Diversity, Inclusion & Belonging at Optus, please visit [https://www.optus.com.au/about/inclusion-diversity](https://www.optus.com.au/about/inclusion-diversity) #LI-EB1 ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 20, 2026 - Listed for: 7 days - Location: Macquarie Park, Australia[Apply on SingTel’s careers site →](https://groupcareers.singtel.com/job/Macquarie-Park-Technical-Specialist-Transmission-Core-Macq/1368106966/) ## More jobs at SingTel ### [Complex Fraud Analyst](https://jobs.opennash.com/companies/singtel/jobs/dec143f0900671ff6bd0/) Macquarie Park, Australia ### [E2E Service Owner](https://jobs.opennash.com/companies/singtel/jobs/c749835762c33ee74cfb/) Macquarie Park, Australia ### [Governance & Board Coordinator](https://jobs.opennash.com/companies/singtel/jobs/9e2fb256db20ed56b621/) Macquarie Park, Australia ### [Incident & SLA Governance Manager](https://jobs.opennash.com/companies/singtel/jobs/a544fb6ff8332a9020b0/) Macquarie Park, Australia ### [Inventory Control Manager](https://jobs.opennash.com/companies/singtel/jobs/8bf9b074c828e2633404/) Macquarie Park, Australia ## Similar jobs at other companies ### [Technical Support Engineer - Windows Core (Device & Deployment, Performance & Reliability)](https://jobs.opennash.com/companies/microsoft/jobs/488e428a6253c524c562/) Microsoft · Japan, Tokyo-to, Tokyo ### [Engineer- Transmission/Power Unit Core](https://jobs.opennash.com/companies/ford-motor/jobs/966c2986f87901ab9c44/) Ford Motor · Naucalpan de Juarez, MEX, Mexico ### [Senior Technical Consultant (Technical Architect), Core Business Workflows](https://jobs.opennash.com/companies/servicenow/jobs/714849ab88622e69b6a6/) ServiceNow · Bangalore, Karnataka, India ### [Transmission & Distribution Technical Lead](https://jobs.opennash.com/companies/aecom/jobs/87475879bad35e8241cb/) AECOM · Den Haag, NLD ### [Transmission & Interconnection Policy Manager](https://jobs.opennash.com/companies/totalenergies/jobs/04dacbde0b94809f53f0/) TotalEnergies OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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