Senior Technical Specialist

Singtel Group; Sydney; On-site; AUD 150,000 - 190,000; Full time

Benefits offered by this job

Competitive remuneration

$80 monthly credit + 25% off Optus

Office campus with cafes and gym

Extended leave: Connected days

Parental leave up to 16 weeks

Diversity networks and culture

Wellbeing counselling 24/7

Free Optus bus service

Job summary

Optus is seeking a Senior Technical Specialist to maintain network performance and service reliability. The role is based on-site at Macquarie Park, Sydney, with a 24x7 rotating roster in the Network Operations Centre.

You will mentor juniors, work with managed service partners, and drive improvements across change, incident, and problem management. The candidate should have engineering/telecom qualifications and extensive cloud-native/virtualised tech experience, with strong vendor and

Qualifications

• Qualifications in Engineering, Telecommunications, or related Science field.
• Hands-on experience with virtualised and cloud-native tech.
• Proven ability to manage vendors & projects.

Responsibilities

• Support incident and problem management; perform root cause analysis with vendors.
• Improve network reliability by reducing fault rates and improving service quality.
• Govern changes and deployments to align with standards and governance.

Skills

Cloud & CaaS

Network operations

Vendor management

Incident mgmt

Education

Engineering/Telecom degree

Tools

Kubernetes

Containers

VMware

Job description

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

We are on the lookout for experienced Cloud and CaaS Senior Technical Specialist to help maintain the performance and availability of our Network and ensuring service reliability. This includes providing hands-on operational support as well as technical governance of suppliers across change, incident, and problem management.

The role operates within a 24x7 rotating roster as part of the Tier 2 support team in our Optus Network Operations Centre in Sydney.

In addition to resolving technical issues, the Senior Technical Specialist is expected to deliver support, mentor junior team members, and collaborate with managed service partners, equipment vendors, and internal engineering teams to support network strategy, implementation, and continuous improvement initiatives.

• Location: 100% on site at Macquarie Park, Sydney
• Work Pattern: Rotating shift roster, including morning, afternoon and night

What You’ll Do

• Support incident and problem management through rapidly resolving complex faults raised from Managed Services and Service Assurance Managers, perform root cause analysis, and coordinate with vendors to implement permanent fixes.
• Deliver on network reliability by driving improvements in fault rates and service quality across the transport network to protect revenue and improve customer experience.
• Reinforce change and implementation governance through detailed review and approval of planned works, network changes, and new technology deployments to ensure alignment with Optus quality, performance, and supportability standards.
• Participate in strategic network evolution by supporting network expansion and upgrades, recommending design improvements, and guide stakeholders on architecture standards for new technologies and services.
• Provide service reporting and technical insights into performance metrics and SLAs, identify trends or issues, and collaborate with various business partners on corrective actions.
• Contribute to automation use cases (e.g., incident creation/resolution), refine event correlation and alarm tuning, and input into tools strategy to support operational outcomes.
• Underpin security and governance by participating in Change Advisory Boards, manage vendor access certification, and engage in training to support continuous improvement and secure network operations.

What You Bring

• Relevant professional qualifications and certifications in Engineering, Telecommunications, or a related Science field.
• Extensive hands on experience in Virtualised and Cloud native technologies and, Service Operations, including in-depth knowledge of Cloud Infrastructure, CaaS layer, NaaS and supporting container-based and virtualised Applications
• Demonstrable ability to manage technology vendors and deliver projects on time and within budget.
• Outstanding skills in presenting ideas, influencing stakeholders, and effectively responding to changing circumstances.
• Proactive approach to identifying and resolving business and technical issues with clear communication and solution recommendations whilst taking ownership of outcomes.
• Ability to build strong working relationships, support the team as a Subject Matter Expert, and fosters a positive team culture that recognises and rewards contributions.

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.
• 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 [e-mail] 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.