Solution Architect - IP

Singtel Group; Sydney; Hybrid; AUD 170,000 - 230,000; Full time

Benefits offered by this job

Flexible working arrangements

Employee discounts

On-site facilities

Job summary

Optus, an Australian telecommunications company, is seeking a Solution Architect in Macquarie Park, Sydney. You will shape the architecture and design of Optus’s IP network across mobile core systems, voice core, network management and other platforms.

As a senior technical leader, you’ll develop robust connectivity solutions from strategy to design, documentation and implementation, working with customers, project teams and vendors to deliver practical outcomes that support Optus services and

Qualifications

• Bachelor’s degree in Computer Science, Electrical Engineering or related discipline; Master’s degree or certs like CCNP/CCIE highly regarded.

Responsibilities

• Architect and design IP network solutions for mobile core, voice core, network management and other telecommunications platforms and services.
• Develop routing and switching roadmaps, plans and strategies to support scalable, secure IP connectivity.
• Lead design and onboarding of new IP network devices and topologies, leveraging automation and intent-based networking tools.
• Provide technical direction and feedback during reviews and incidents, and support delivery milestones.
• Gather requirements with internal customers, projects, vendors and IP teams and document proposed solutions.

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.

We’re looking for a Solution Architect to join our Telco IP & PE team in Macquarie Park, Sydney. In this role, you’ll shape the architecture and design of Optus’s IP network across mobile core systems, voice core, network management and broader telecommunications platforms.

As a senior technical leader within the Mobile IP team, you’ll develop robust, scalable and secure connectivity solutions from strategy and roadmap development through to detailed design, documentation and implementation. You’ll work closely with internal customers, project teams, vendors and wider IP teams to turn complex requirements into practical network outcomes that support Optus services and business units.

What You’ll Do

• Architect and design IP network solutions for mobile core, voice core, network management and other telecommunications platforms and services.
• Develop routing and switching technology roadmaps, network plans and solution strategies that support scalable, secure and reliable IP connectivity.
• Lead the design and onboarding of new IP network devices and topologies, leveraging automation and intent‑based networking tools.
• Act as a subject matter expert for routing and switching, providing technical direction, design feedback and support during solution reviews and critical operational issues.
• Partner with internal customers, project teams, vendors and wider IP teams to gather requirements, assess feasibility and impact, resolve design issues and document proposed solutions.
• Assess upcoming projects, network plans and budgets, manage technical risks and provide clear recommendations during escalations and delivery milestones.

What makes you perfect for the role?

• A Bachelor’s degree in Computer Science, Electrical Engineering or a related discipline, a Master’s degree or certified network professional qualification such as CCNP or CCIE are highly regarded.
• Years’ experience in IP network engineering, including at least five years in a leadership role and significant experience conceiving and delivering complex engineering solutions and large projects.
• Deep knowledge of TCP/IP, UDP, BGP, OSPF, MPLS, SR‑MPLS, SR‑TE, RSVP‑TE, LDP, SRv6, EVPN, IPVPN, L2VPN, QoS and traffic engineering.
• Strong experience with end‑to‑end design and lifecycle management of BNG, CGNAT, Telco Cloud Connect edge routers, data‑centre fabrics and firewalls, across on‑premises and hybrid cloud environments.
• Broad telecommunications architecture knowledge across MOCN and 5G private networks, VoLTE, VoWiFi, VoNR, IMS, 3G, 4G, RAN technologies and network security, together with hands‑on experience using Ansible, Netconf/YANG or equivalent automation frameworks.
• A strategic, customer‑focused and collaborative approach, with strong executive communication, coaching, mentoring, vendor management, commercial awareness, problem‑solving and influencing skills, and the ability to work autonomously under pressure.

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 [e-mail] or call 1800 309 170.