A Kubernetes Engineer is responsible for deploying, managing, and optimizing Kubernetes clusters to ensure scalable and efficient containerized applications. They automate deployments using CI/CD pipelines, configure networking and security, and monitor performance with tools like Prometheus and Grafana. They also work with cloud platforms like AWS, Azure, and GCP to manage Kubernetes in hybrid or multi-cloud environments. Additionally, they optimize resource utilization, implement disaster recovery, and enhance security through RBAC and network policies. In some cases, they also focus on sustainability by reducing energy consumption using tools like Kube-Green.