Worked on the openvinotoolkit/openvino repository to address a bug in the MOE Pattern Matcher for the Qwen3.5 model, focusing on improving GPU compatibility and graph structure integrity. Using C++ and leveraging expertise in GPU programming and model optimization, introduced a no-op Slice operation between nodes and updated routing logic to maintain the expected graph structure during execution. This targeted fix reduced MOE-matcher errors and enabled more reliable deployment of MOE-based models on GPUs. The work included thorough code review, validation with targeted tests, and documentation updates to ensure stability and clarity for future deployment and continuous integration pipelines.