Kost Zhukov developed secure secret management integration for the kubernetes-on-aws repository, focusing on enabling the zmon-db-user to retrieve database credentials from AWS Secrets Manager. He implemented IAM permission grants to allow controlled access to secret values, removing the need for hard-coded credentials and supporting secure provisioning for database-backed applications. Working primarily with AWS, IAM, and Kubernetes, Kost used YAML to define infrastructure changes and ensure commit-based traceability. His work improved the security posture of the project, reduced the risk of credential leakage, and streamlined application deployment by leveraging AWS-native secret management within Kubernetes workflows. No major bugs were reported.