Worked on enhancing the S3 URI signer in both the ruby/ruby and rubygems/rubygems repositories, focusing on improving reliability and reducing signature-related errors. Addressed issues with date formatting and ensured correct handling of HTTP methods, specifically distinguishing between HEAD and GET requests for accurate signature generation. Updated the implementation to explicitly use HTTP methods rather than boolean flags, which reduced 403 errors when accessing S3 assets and improved gem distribution reliability. Leveraged Ruby, AWS S3, and backend development skills to update and expand test coverage, ensuring maintainability and preventing regressions in asset delivery workflows across both repositories.