Worked on the Kotlin/kotlinx-atomicfu repository with a focus on security hardening and dependency management. Addressed a vulnerability by removing the unused Rhino library dependency, thereby reducing the project’s attack surface without impacting runtime functionality. The approach centered on improving dependency hygiene, ensuring that only necessary libraries remained in the codebase. Applied security best practices throughout the process, carefully isolating the change to avoid introducing risk or altering existing features. Utilized Kotlin for implementation, demonstrating attention to detail in maintaining a clean and secure build environment. The work resulted in a safer codebase with improved maintainability and reduced potential exposure.