documented, evidenced and reversible-by-design where possible.Own the target architecture for the platform across its full stack: OpenShift (HCP/Virtualization), GitOps delivery (Argo CD), multi-cluster management and policy (ACM, Gatekeeper/OPA), observability, networking and storage integration, and infrastructure-as-code. Set and enforce the paved-road … HyperShift/HCP): management vs workload cluster separation, hosted cluster lifecycle, and the operational model differences from standalone clusters.GitOps-based platform delivery in production: Argo CD or equivalent, declarative configuration, environment promotion, drift detection - everything-as-code as a working default.Multi-cluster fleet management and policy-as-code ...