Worked on enhancing fuzz testing for the xz project within the google/oss-fuzz repository, focusing on expanding vulnerability detection and edge-case coverage. Delivered a feature that enabled debug assertions during the build process, allowing for earlier identification of subtle issues. Broadened architecture support by adding i386 alongside x86_64, ensuring that fuzzing tests run across more platforms and configurations. Integrated additional fuzzing engines to further improve the detection of rare bugs. Utilized Shell scripting and expertise in build systems and system configuration to implement these changes, strengthening the security testing baseline and increasing the robustness of automated vulnerability discovery for xz.