Chris Tsiaousis refactored the batched GEMM implementation in the ROCm/composable_kernel repository, focusing on technical debt reduction and performance readiness. He consolidated device structures and logic into shared files, reducing code duplication and improving maintainability across WMMA and multi-dimensional GEMM variants. By introducing common structs and reusable components, Chris enabled cross-variant performance optimization and streamlined future enhancements. His work applied include-what-you-use principles to header dependencies, enhancing compilation hygiene. Using C++, CUDA, and GPU programming expertise, Chris established a unified architecture that stabilized kernel interfaces and laid the groundwork for ongoing performance tuning in high-performance computing contexts.