Worked on the apache/activemq-artemis repository to enhance security and reliability in Kubernetes deployments by addressing a critical issue in the JAAS trust store module. Focused on improving certificate management, the developer fixed a bug that previously allowed only a single CA certificate to be loaded, which led to PKIX path validation failures. By enabling the loading of all certificates from a bundle, the update improved trust store initialization and connection reliability, especially during certificate rotation. The work demonstrated strong skills in Java, Shell scripting, and SSL/TLS security, with careful attention to robust bug-fix practices and deployment considerations in cloud environments.