Design, build, and operate automated CI/CD pipelines (e.g., GitLab CI, GitHub Actions, Azure DevOps, Jenkins) with integrated security controls including SAST, DAST, SCA, container image scanning, and secret management. Implement, harden, and manage containerized workloads using Docker and Kubernetes (including RKE2, OpenShift, or Rancher), leveraging Helm, Kustomize, and umbrella charts to deploy and manage complex, multi-service systems.