Worked on enhancing the RestClient component in the apache/flink repository by introducing support for externally managed Netty EventLoopGroups. This feature allows users to provide their own EventLoopGroup to the RestClient, improving resource control and enabling safer integration with existing Netty-based infrastructure. The implementation involved adding new constructors and ensuring that the RestClient does not shut down externally managed groups, which is essential for robust resource sharing in complex deployments. The work focused on backend development using Java and network programming principles, delivering architectural improvements that increase reliability and flexibility for production environments without addressing bug fixes during this period.