Worked on the scala/scala3 repository to address a critical issue in the Scala 3 compiler, focusing on the remapping of class member information referencing spliced types. Applied expertise in compiler design and Scala to implement a fix that prevents unsound erased signatures, thereby improving runtime safety and the reliability of advanced type features. Developed and integrated automated tests using Scala to validate the solution, increasing test coverage for spliced-type remapping scenarios. Collaborated closely with other Scala contributors to align on tracking issues and pull requests, ensuring maintainability and high review quality throughout the development and testing process.