Worked on the aobolensk/openvino and openvinotoolkit/openvino repositories, focusing on GPU optimization and reliability. Developed a GroupNormalization fusion pass for the GPU backend, using GroupNormalization as a proxy for InstanceNormalization to enhance plugin performance while ensuring stability through feature gating. Improved GPU debug graph accuracy by correcting metadata key typos, which streamlined diagnostics and reduced debugging friction. Addressed kernel build reliability for Level Zero by ensuring the NULL terminator was included in source byte counts, aligning with driver requirements. Employed C++, CMake, and deep learning frameworks, demonstrating careful code refactoring, targeted debugging, and a focus on maintainable, reviewer-friendly changes.