Senior Technical Specialist (Sydney, Australia) chez Singtel: Mobile, Fibre Broadband and TV services provider

 It starts with YES! 

 At Optus, we have an ambitious goal to be Australia’s most loved everyday brand.

The IP and Transport Network team is responsible for end-to-end management of IP core platforms within the Network Engineering department. This includes lifecycle planning, growth initiatives, strategic projects, cybersecurity compliance, and performance monitoring to support all Optus service streams—Fixed, Mobile, and Enterprise—making it critical to the company’s revenue streams. The role involves acting as a domain prime, managing platform engineering planning and execution, reviewing design solutions, and ensuring production network success. Hands-on experience with Cisco, Nokia, and Juniper routers, along with knowledge of international and peering technologies, is highly desirable

As a senior engineering role, this position requires developing subject matter expertise and providing leadership to junior engineers. The successful candidate will operate independently, guiding complex technical solutions, managing contractors and vendors, and collaborating across multiple internal teams to deliver key projects. This is a high-impact role that combines technical depth, problem-solving, and leadership to ensure robust and future-ready IP platforms.

What you’ll be doing

• Plan and deliver end-to-end IP core network builds, upgrades, and expansions, including cost-benefit analysis and implementation planning.
• Proactively manage capacity, develop infrastructure upgrade plans, and consolidate legacy platforms to enhance customer experience.
• Lead project meetings, guide stakeholders, support sourcing initiatives, and maintain strong relationships to resolve issues effectively.
• Prepare investment and AOP plans, monitor project progress, produce reporting, and take proactive action to avoid network exceptions.
• Provide technical expertise, recommendations, and strategy input while mentoring junior engineers and delivering training where required.
• Stay current with emerging technologies, balance technical and financial requirements, and translate complex solutions for varied audiences.

What makes you perfect for the role?

• 15+ years in telecommunications, including 10+ years in IP network engineering roles.
• Degree in Telecommunications Engineering (or related field) with Cisco/Juniper/Nokia certifications desirable.
• Strong hands-on experience in router configuration, network planning, and telecommunications provider environments.
• In-depth knowledge of Segment Routing, IPv4/v6, TCP/IP, routing/switching, MPLS, traffic engineering, and modern datacentre technologies
• Skilled in project and budget management, documentation, and network automation tools (Ansible, Python), with strong stakeholder engagement experience.

Optus is a place where we let you do you. We offer a range of benefits including:

• 3 days in the office, 2 days remote – with flexible hours to suit!
• 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.
• 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!

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.