Worked on the BabylonJS/Babylon.js repository to address a memory leak in NodeMaterials parsing, focusing on stabilizing image-processing observer management. Utilized TypeScript and front end development skills to ensure only one active image-processing observer existed per material lifecycle, preserving observer state and reattaching configuration as needed. Added a regression unit test to verify that observer counts remained stable across repeated parse and dispose cycles, emphasizing reliability for dynamic scenes. This work reduced the memory footprint and improved long-running scene performance, while thorough documentation and reinforced observer lifecycle handling contributed to maintainability. Emphasized unit testing to validate the robustness of the solution.