Domain Lead Architect – Cloud

About the role

As the Domain Lead Architect – Cloud at Optus, you will provide strategic and technical leadership across the Cloud domain, shaping secure, scalable network solutions for private and public cloud environments. You will work closely with engineering teams, vendors and business stakeholders to align architecture with Optus’s growth plans.

Key responsibilities

• Develop and execute long‑term Cloud network strategies aligned with business goals and technology roadmaps.
• Provide architectural guidance for design, implementation and maintenance of high‑performing network infrastructure.
• Lead platform owners and engineering teams through major projects, ensuring successful delivery and knowledge transfer.
• Participate in Architecture Review Boards, reviewing high‑level designs and driving approvals.
• Contribute technical input to security workshops, supporting firewalls, protocols and cyber‑threat mitigation.
• Partner with vendors and internal teams to evaluate new technologies and drive continuous improvement.

Required profile

• 10+ years of engineering experience in telecommunications, with at least 7 years focused on Cloud technologies.
• Deep knowledge of mobile data networks, carrier environments and both fixed and mobile network requirements.
• Proven ability to translate strategy into practical solutions and lead cross‑functional teams.
• Strong communication and stakeholder‑management skills, supported by a technical qualification in IT or Telecommunications Engineering.

Required skills

• OpenStack, containerised and virtualised Cloud, orchestration, micro‑services.
• Kubernetes, Docker, NFV, IaaS, PaaS and SaaS environments.
• 4G/5G network architecture, IP routing protocols (OSPF, BGP), TCP/IP, tunnelling, NAT and QoS.
• Experience with security protocols, firewalls and cloud‑network protection measures.

What we offer

• Competitive remuneration and employee discounts, including $80 monthly credit and 25% off Optus products.
• Flexible hybrid working arrangements – three days onsite, two days remote.
• Vibrant campus with cafés, gym, on‑site childcare and free Optus bus service.
• Generous leave policies, parental leave up to 16 weeks and ‘Connected’ days for personal priorities.
• Access to Optus U micro‑credentials and employee‑led diversity networks.