AWS (EC2, VPC, ELB, Auto Scaling, S3, IAM, Route 53), customer infrastructure support, Docker, Kubernetes, blue-green deployment, zero-downtime release support, Grafana, AppDynamics, Splunk, Prometheus basics, MySQL administration, upgrades, troubleshooting, SQL queries, Oracle basics, Jenkins, Maven, deployment automation, release planning, Java REST API support, incident management, customer issue handling, RCA, runbooks, SOPs, certificate renewals, vulnerability remediation, patch coordination, production documentation, maintenance planning, ServiceNow, BMC Remedy, Linux, Claude Agent, infra setup with blue-green deployment