Worked on the openssl/openssl repository to address a critical build and assembly issue affecting the Windows ARM64 platform. Focused on stabilizing the VC-WIN64-CLANGASM-ARM assembly target, the developer corrected comment formatting and ensured that the _M_ARM64 define check was consistently applied, resolving failures that disrupted both CI and release pipelines. This targeted bug fix improved the reliability of Windows ARM64 builds and enhanced cross-platform compatibility. The work demonstrated proficiency in C and assembly, as well as a strong understanding of ARM architecture and build systems, contributing to the overall stability and maintainability of the OpenSSL project’s codebase.