Vladimir Zeljkovic worked on infrastructure refactoring and feature development across the tenstorrent/tt-xla and tenstorrent/tt-mlir repositories. He unified JAX and Torch workload handling by reorganizing core methods and removing the Workload Factory, which reduced code complexity and improved maintainability. In tt-mlir, he implemented logical left and right bitwise shift operations for the TTIR and TTNN dialects, including op definitions, verification, model interfaces, and comprehensive tests. Using C++, MLIR, and Python, Vladimir’s work enhanced low-level optimization and code organization, enabling broader MLIR-based capabilities and positioning the codebase for faster iteration and easier platform support.