Worked on improving the reliability of QoS metrics in the spinnaker/spinnaker repository by addressing an issue where execution buffering metrics were prematurely deleted by the garbage collector. Introduced a PolledMeter to maintain strong references to these metrics, ensuring their continuous availability and reducing occurrences of 'N/A' QoS readings. This solution enhanced the quality and consistency of data used for SLO monitoring and decision-making. The work demonstrated skills in backend development, garbage collection management, and metrics monitoring, utilizing Java and Kotlin to implement GC-aware instrumentation and collaborate effectively under performance-focused requirements within a production codebase. No new features were added.