Over a two-month period, contributed to Netflix/metaflow and ray-project/ray by delivering targeted improvements in backend reliability, security, and workflow management. Addressed critical bugs in metaflow by stabilizing unit test collection and preventing duplicate DAGTask names, enhancing test reliability and workflow submission in Argo. Implemented a CI security audit for the Cards UI component in metaflow, integrating npm audit checks to surface vulnerabilities early in the build process. In ray, refined exception handling for checkpoint loading, adding logging to improve observability of failures. Work was primarily done in Python and YAML, emphasizing CI/CD, security auditing, and robust exception handling practices.