Remote: Hybrid

Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions.As the Principal, Critical Network Platforms, you'll be the senior technical leader accountable for the design, architecture and hands:on delivery of scalable, secure and resilient hybrid infrastructure platforms. These platforms underpin network automation tooling, operational systems and engineering workloads across on:premises data centres, private cloud (OpenShift, Proxmox) and public cloud (AWS and GCP). You'll set technical direction, standards and design patterns for the IP Network Engineering (IPNE) and Tooling team, and mentor senior engineers to uplift team capability.What You'll Do:Define, govern and maintain hybrid infrastructure architecture patterns, reference designs, standards and guardrails across on:premises data centres, private cloud (OpenShift, Proxmox) and public cloud (AWS, GCP) environments, ensuring scalability, security, compliance and production readiness.:Lead infrastructure design reviews and provide architectural assurance across initiatives, addressing non:functional requirements (availability, resilience, blast:radius control, performance and compliance) from day one.:Architect and manage on:premises compute platforms, including bare:metal server provisioning, hypervisor management (Proxmox), hardware lifecycle planning, firmware and BIOS governance, and capacity modelling for data centre workloads.:Design, deploy and operate OpenShift container platform environments, including cluster lifecycle management, operator frameworks, multi:tenancy, RBAC, storage integration and day:2 operations for production engineering workloads.:Architect and deliver infrastructure:as:code (IaC) frameworks using Terraform and Ansible, establishing consistent provisioning,



configuration management and drift control across on:premises and cloud environments.:Build, govern and evolve CI/CD pipelines for infrastructure delivery using GitLab CI/CD and GitOps patterns, enabling autonomous, repeatable and auditable deployment of platform changes.:Architect and deliver cloud and hybrid networking constructs, including VPCs, transit gateways, VPNs, private connectivity, DNS and firewall policy, ensuring secure and performant integration between on:premises data centres and public cloud environments.:Define and enforce platform security controls, including identity and access management (IAM), secrets management, network segmentation, supply:chain security and compliance:as:code tooling.:Prototype and evaluate emerging infrastructure technologies, including hyperconverged infrastructure, container:native storage and private cloud orchestration platforms, translating outcomes into actionable architectural recommendations and engineering standards.:Establish and maintain infrastructure engineering playbooks, design guides and communities of practice, mentoring senior engineers through peer reviews, design critiques and capability uplift programmes.:Collaborate with observability, automation and software engineering teams to deliver integrated platform capabilities, including infrastructure telemetry, capacity signalling and cost governance.What You Bring:Tertiary qualifications in a relevant discipline, or equivalent practical experience, with 8+ years' experience building and architecting production hybrid infrastructure in large, complex environments.:Deep, hands:on experience with on:premises compute infrastructure, including bare:metal server provisioning, hardware lifecycle management, firmware and BIOS governance, storage arrays and data centre capacity planning.:Solid expertise in hypervisor platforms, with hands:on experience managing Proxmox VE environments at scale, including cluster management, VM lifecycle, storage backends (Ceph, ZFS) and high:availability configuration

📌 Principal, Critical Network Platforms (Tamworth)
🏢 Important Business
📍 Tamworth