Worked on the sapcc/limes repository, focusing on the Cronus Liquid area to enhance observability, stability, and maintainability. Developed new usage metrics for AWS and Postfix messaging services, enabling detailed tracking of data flow and messaging throughput. Introduced serialized state versioning to improve reliability and state management, addressing potential issues with data consistency. Improved code quality by resolving linting issues, which reduced technical debt and streamlined future development. Utilized Go for backend development and API integration, with attention to data management best practices. These contributions collectively supported more data-driven decision making and facilitated faster delivery of future features.