Network Architect / Senior Network Architect / Network Security Architect / Network Infrastructure Architect

Role Summary: Own the design, architecture, and evolution of client's IT network domain — covering network, firewall, proxy, load balancing, and NSX — as well as compute and public cloud network and security across Azure and AWS. This role spans the full stack: classic physical networking, private VMware cloud (NSX), through to public cloud and hybrid connectivity. Key Responsibilities · Design and maintain NSX network virtualization architecture across the SDDC estate · Own Cisco ACI fabric design: tenant/VRF segmentation, EPG structure, bridge domains, leaf/spine topology · Architect and oversee firewall design, policy, and lifecycle across the network estate · Architect and oversee proxy services as part of the network domain · Design and maintain load balancing architecture (on-prem and cloud, e.g. WAF-fronted LBaaS) · Lead large-scale datacenter migration and decommission programs (multi-country, thousands of devices) · Public cloud networking: Azure and AWS, including hybrid connectivity back to on-prem and both classic and cloud-native network architectures · Extend architecture ownership into compute, ensuring network/security design aligns with compute platform needs · Build and evolve automation/tooling for network operations and auditing at scale · Operate within and help evolve client's broader IT network environment, working across teams and contracting layers Required Skills & Experience · Classic physical networking (routing, switching, datacenter fabric) · Deep hands-on expertise with VMware NSX (private cloud networking) · Public cloud networking: Azure and AWS, hybrid on-prem connectivity · Strong Cisco ACI experience: VRF/tenant segmentation, EPG/bridge domain design, fabric operations · Firewall architecture and operations · Proxy architecture and operations · Load balancer / WAF architecture (on-prem and cloud) · Working knowledge of computer platforms and their interaction with network/security design

• · Experience in security is a plus