Worked on the kubernetes/kubernetes repository to deliver two core enhancements focused on security and configuration clarity. Implemented support for ECDSA P-384 certificate and key generation in kubeadm, strengthening cryptographic options for cluster bootstrapping. Also streamlined kubelet configuration by deprecating the unused StreamingConnectionIdleTimeout parameter, removing obsolete code and updating documentation to guide operators through the transition. These changes, developed in Go and leveraging expertise in Kubernetes and backend development, improved the security posture and maintainability of the platform. The work emphasized clear deprecation messaging and documentation, ensuring smoother upgrades and reducing configuration complexity for Kubernetes operators and maintainers.