Worked on the ROCm/AMDMIGraphX repository to refactor the ONNX parser by introducing a new builder framework in C++. Developed dedicated operator builder classes for batchnorm, celu, einsum, gemm, and mean_variance_normalization, centralizing operator implementation and reducing code duplication. This approach improved code organization and maintainability, making it easier to extend ONNX operator support in the future. Focused on compiler development and refactoring, the changes streamlined the process of adding new operators and facilitated more efficient testing. The work laid a foundation for faster onboarding of additional ONNX operators while lowering future maintenance costs for the parsing infrastructure.