Supported enterprise application platforms and production deployments across the service lifecycle, delivering rollback-aware changes; documented and tracked work in Jira/Confluence (or equivalent); leveraged enterprise-authorized AI with strong validation and data-sensitivity; and communicated clearly to troubleshoot calmly and explain risk to technical and non-technical audiences. Deep knowledge of one or more areas of infrastructure engineering such as: hardware, networking terminology, databases, storage engineering, deployment practices, integration, automation, scaling, platform engineering, network engineering, infrastructure operations, cybersecurity controls.