Network architecture | HLD/LLD | Cisco ACI Your new company Renowned education client based in South-eastern suburbs of Melbourne. Your new role My client is engaging a senior, enterprise-level Network Architect to lead the architectural design and delivery of major multi-site Data Centre uplift initiatives. This role is for someone who operates at expert level - someone who has personally designed and delivered large-scale data centre architectures and is comfortable being accountable for the final technical outcome. Role and responsibilities: Own the end-to-end architecture of multi-site data centre network solutions. Make definitive architectural decisions across scale, resilience, performance, security, and operational risk. Remove ambiguity and drive technical clarity across engineering teams and stakeholders. Lead validation strategy - lab testing, proof-of-concept, and production readiness. Embed automation and repeatable standards to increase long-term operational maturity. Deliver production-ready, fully documented architectures aligned to enterprise governance frameworks. What you'll need to succeed 10 years designing enterprise-scale network architectures in complex, multi-site environments. Demonstrated ownership of data centre architecture at scale - not just configuration or build activity. Proven delivery across the full lifecycle: strategy, HLD/LLD, validation, implementation oversight, and transition to operations. Bachelor's degree or equivalent enterprise-level experience. CCIE, CCDE or equivalent expert-level certification are strongly preferred. Cisco ACI (including multi-site deployments) EVPN (multi-site), OSPF, BGP at enterprise scale Palo Alto firewall architecture and policy design WAF and load balancer integration Optical networking strategy and transceiver design Hybrid networking across public and private cloud environments What you'll get in return Initial 12-month contract potential extensions. Market rates. Hybrid environment. What you need to do now If you're interested in this role, forward an up-to-date copy of your CV to Vishal at Vishal.Sachdeva@hays.com.au 2984191