Worked on enhancing timestamp precision in the Bitbucket PR extractor within the apache/incubator-devlake repository, focusing on backend development and API integration using Go. Delivered support for microsecond-precision timestamps by updating data models and parsing logic to handle six-digit fractional seconds, ensuring consistent ISO8601 storage. This improvement addressed data ingestion accuracy issues, reducing data quality problems for Bitbucket PR analytics and supporting more reliable CI/CD dashboards. The work involved migrating timestamp fields to a new format and extending date-time handling, with thorough testing to validate correctness. These changes improved downstream analytics by providing more accurate and granular PR event data.