Worked on the github/issue-metrics repository to enhance pull request analytics by improving the accuracy of Time-in-Draft measurements. Addressed a key bug by refining the calculation to accumulate draft time across multiple intervals and ongoing drafts, leveraging event history analysis in Python. Strengthened the reliability of PR metrics by expanding edge-case test coverage, ensuring dashboards and sprint planning are based on robust data. Improved code quality in test suites by aligning with linting standards and maintaining clean, readable tests. Demonstrated skills in Python, Git, and unit testing, with a focus on code quality and continuous integration best practices throughout development.