Proficiency in Three.js/WebGL or WebGPU for 3D viewer development Demonstrated ability to implement GPU instancing for 3D objects Knowledge of rendering optimization techniques (LOD, view frustum/occlusion culling) Familiarity with production-level rendering pipelines (PBR shaders, HDRI skyboxes, dynamic shading) Knowledge of Angular framework Ability to create minimal UI panels Experience with accessibility and UI polish Implementation of preloaders, progressive instantiation, and error handling Skills in measuring and reporting performance metrics Experience iterating on implementations to meet performance targets Ability to conduct performance and regression testing Experience integrating with backend APIs Capability to implement client-side fallback approximations Ability to create and maintain prototype repositories with clear READMEs Proficiency in developing developer and operator documentation