Worked on the hiero-json-rpc-relay and related repositories to deliver seven new features over two months, focusing on backend reliability, configuration management, and observability. Introduced mandatory npm_package_version enforcement and enabled environment-driven loading of spending plans, improving deployment safety and maintainability. Standardized version management across root and package files, upgraded Node.js in CI/CD pipelines, and enhanced test stability using JavaScript, TypeScript, and YAML. Added configuration-driven runtime controls and implemented dashboards for real-time monitoring, supporting faster debugging and operational visibility. The work emphasized robust integration testing, documentation updates, and cross-repo improvements, resulting in more predictable releases and resilient infrastructure.